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Drainage Study
Planning and Environmental Commission
March 11,2002
PEAK LAND CONSULTANTS, INC,
PEAK LAND SURVEYING, INL.
PEAK CMIL ENGINEERING, INC.
Februarv 8. 2002
Allison Ochs
ToV Department of Community Development
75 South Frontage Road
Vail, CO 81657
Re:Middle Creek Village Preliminary Drainage Report Addendum
Dear Allison:
TIte Preliminary Drainage Report for Mid.dte Creek Village dated August 2l,2OOl,proposed a
sedimentation pond at the southeast comer of th€ proposed development. Due to design changes and
recommendations, site constraints will make a pond impractical for the proposed development. In iieu of
a sedimentation pond, several measures will be taken to promote stormwater runoff water quality.
A curb and gutter and stonn sewer system is proposed to carry stormwater through the site. The drainage
system is designed with curb inlets and sand oil separators. Per Town ofVail standards, tbe proposed
Type 13C curb inlets are designed with a 1.5' sump beiow the inlet to capture sediment from runoff.
Additionally, two sand/oil separators are proposed to capture sediment and oil from parking lot, access
drive, and snow melt runoff. A preliminary layout of these measures is shown on the grading and
drainage plan. A final sizing of the drainage improvements will occur in the Final Drainage Study for
Middle Creek Village, during the final plat submittal. All improvements will be designed per Town of
Vail Standards. The proposed system will facilitate sedimeirtation from site runoff.
Additionally, "Best Management Practices" wiil be implemented during the construction process to
ensure appropriate erosion control and water quality measures are taken. Erosion control throughout the
construction process will consist of silt fence, staw bales, and check dams.
Please do not hesitate to contact me should you have any questions.
Sincerelv.
9704768644 . F/dr/.9704768616 . 1000 UONT RIDGE LOOP r VAIL CO 81657
970-726-3232 . FAX 97U7264343 , 78436 US HWY 40, PO. BOX 1680 . WINIER PARK CO 8048?
%fuL
Mark B. Tarrall
Peak Civil Engineering, Inc.
\\PEAK\Pmjects\TEMPO RARY\drainaBc addendum.doc
Preliminary Drainage Report
For
Town of Vail, Eagle County, Colorado
August 27,2001
Prepared For:
Odell fuchitects
Prepared By:
Peak Civil Engineering Inc.
1000 Lions Ridge Loop
Vail, Colorado 81657
Introduction
The Mddle Creek Village site is a parcel of land in the Town of Vail, located in the
Southeast % of Section 6, Township 5 South, Range 80 West. The site is north of the
north frontage road of I-70 approximately % mile west of the main Vail interchange. The
attached vicinity map shows the project location. The existing site proposed for
development is approximately 8.1 acres and includes the existing Mountain Bell Road
and the Qwest (old Mountain Bell) microwave tower building. The proposed
development plan consists of 8 multi-unit buildings with related parking and appurtenant
structures. Mountain Bell Road would be extended ttuough the site to create a loop to: and fromthe north frontase road.
Existine Hydrolow
'r Ndddle Creek passes through the property fiom'north to south approximately 250 feet
west of the existing Mountain Bell Tower building. The Middle Creek drainage basin is. approximately 6 square miles and is included intheFlood Insurance Study of tlre Town
of Vail dated November 2, 1982. The hydrology of the drainage basin will remain
largely unchanged as a result ofthe proposed development. The 100 year floodplain
,*I based on stream deptlq as shown on flood profile panels 07P thru 09P, has beenit,,: delineated and is included in the appendix.
.'''
,i. The westerly l/3 ofthe proposed development site (2.8 acres) is within the Mddle Creek
drainage basin. The existing Mountain Bell Tower building, parking lot and driveway to
the north frontage road occupies 0.9 acres ofthe proposed development site.
The easterly 2/3 of the site (5.3 acres) flows south to the roadside ditch along the north
frontage road which flows east toward Spraddle Creek.
AII hydrology calculations in this study utilized the Rational Method. This method has
been shown to be appropriate for calculating the hydrology of small drainage basins of
fewer than 100 acres. Runoffcoefficients were taken from the Urban Drainage Marrual,
Denver Regional Council of Governments, Table 3-1, and rainfall intensities were taken
from the Town of Vail "Intensity - Duration - Frequency Curves". The table and curves
,
are presented in the Appendix.
Proposed Hydrofow
The development of the existing site will utilize the existing drainage basins with 1/3 of
the site draining to Middle Creek and 2/3 of the site draining to the north I-70 frontage
road ditch. Approximately 9.4 acres of offsite drainage flowing through the site are
included in the rational method calculations. Proposed drainage patterns through the site
will approximate the existing conditions. No detention is proposed for the site. The
surnmary table presents the results of the study with hydrology calculations shown in the
appendix.
drolow Summ le
West Erist.
2.E ac-
West Proo.East Exist
14.7 ac
East Pron.
Q lO-Year 2.5 cfs 3.3 ds 7.0 cfs ll.3 ds
Q 100 - Year o./ fis 7.6 cfs 27.2 cf.s 32.8 c'fs
uality Issues
Proposed inlet design will include additional depth in accordance with Town of vaii
standards to facilitate sedimentation. Proposed sedimentation pond at the southeast
corner of the project site will also act to promote sedimentation and infiltration of runoff
from the site. All swales will be grass lined or lined with rip-rap when water velocities
and slope mandate. Additionally, silt fence and straw bale dikes will be used throuehout
the site during the construction process.
Proposed Drainage Improvements
Proposed drainage improvements include extension of the existing Middle Creek culvert
to the north, catch basins in Mountain Bell road at both the southwest entrance and the
southeast entrance to the site, and culverts under the Mountain Bell road entrances to
accommodate the north frontage road drainage. Hydraulic calculations for the drainage
improvements are included in the appendix.
Conclusions
Runofffrom the proposed development will follow existing drainage patterns. Theproposed sedimentation basin will serve as a water qualityleature io i.ornot"sedimentation and infiltration. Catch basins will have additional depth to further
facilitate sedimentation, Inlets, catch basins and culverts will be designed to safely pass
the l0-year event. Surface drainage improvements wili be designed to safely pass the
1O0-year event without damage to property. As the site plan ii refined, this drainage
study will need to be updated.
Appendix
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TABLE 3- I (42 )
RtC0l"'i'ltNDE0.RUliCFF C0EFFlCltilTS AND PERCENT illPERVl0Us
RUIiOFF
LAND USI OR
SURFACE CHARACTERISTICS
PE RCENT
IMP ERV I OUS
FREQU iliCY
510 i00
Business:
Commercial Areas
Ne ighborhood Areas
P.esidential:
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.40
.80
Greenbel ts , A-ori cul tural
0ffsi te Flow Analysis 45
(when land use not defined)
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0r'i ve and lilalks:
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Lawns.' 5an0y )0 I I
Lawns , Cl ayey 5o i'l
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90 .80
0 .00
0 .05
Fornula coeffjcients nay irt fn'. l:rno h;<in<rs rwr rerJr ver!,.-
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not be val
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Il-1-90
llon[.., noA lrJle ( r'ln cr nnn a^rrin/.|
FROil: DRCOG URBAN STORil
DRAINAG€ CRITERIA MA}'IUAL
/li rENSi rY - DURATToN -
FREQUENCY CURVES
n
( TIME
30 40
MINUTES )
E
uZO6)r"-<3H e'tYxi-lv<
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o
MIDDLE CREEK VILLAGE
MTIONAL METHOD
TOTAL AREA =
Cl.PVMT&BLDG
Q10=
Ql00=
8t21t01
WEST DRAINAGE AREA. EX|ST|NG CONDITTONS
C2. FOREST
G10 =
C100 =
TIME OF CONCENTMTION
T1 = SHEET FLOW 300 FT @ 41o/o.
Tl (10 yr) = (1 .1 - 0.41) x Length ^1tZ t S ^1t3
Tl (100 y4 = (1.1 - 0.60) x Lengrh ^112l S ^1/3
T2 = SHALLOW FLOW, S5O' @ 40o/o
V10 = 1.49 / N x (tuP)^ 2t3 x S 1t2
V100 = V10
T2 (10 Yr) = 550' / 11 .76fps x 60
T2 (100 yr) = 550' / 11.78fps x 60
TOTAL Tc10 = 21.4 + .6 =
TOTALTcI00= 11.8+.6-
INTENSIW ( l) =
ll0=
1100=
PEAK FLOW RATE ( O )Q=ClA
2.8 AC
0.7 AC
C10 = 0.8E C100 =
2.1 AC
C10 = 0.25 C100 =
(O.EE x 0.7) + (0.25 x 2.11 t z.s
(0.89 x 0.7) + (0.50 x Z.1l I Z.g
(0.41) x (2.2) x (2.6) =
(0.60) x (4.0) x (2.8) =
Job No. 1039By: GKM
Runoff Coefficient - C
from Table $1, Urban Drainege
Runoff Coefficient - C
from Table &1, Urban Drainage
n = 0.025
A/P=6/13-12Wx0.5'd
s = 0.1 'l
0.89
0.50
16.23 min.
11.78 min.
11.78 fps
11.76 fps
0J8 min.
0,78 min.
17.0 min.
12.6 min.
!!inJhr.
4.0 in./hr.
2.51 cfs
6.69 cfs
lntensity (l) from
Town of Vail IDF flrves
0.41
0.60
MIDDLE CREEK VILLAGE
RATIONAL METHOD
TOTAL AREA = 14.7 AC
c1 - FOREST 14.7 AC
C10 = 0.25
TIME OF CONCENTRATION
T1 = SHEET FLOW, 300 FT @ 4OVo.
Tl (10y9=(1 .1 -0.25)xLength ^1l2 lS^1t3
Tl (100 yr) = (1.1 - 0.50) x Lenglh ^1/2 / S ^1/3
T2 = SHALLoW FLOW, 950 FT @ 66%.
1O'WIDE, 0.5'DEEP
V10 & V100 = 1.49/n x (A/p)^.67 x S^.5
V10 &V100= 1.49/nx (5/1 1)^.67x.66^.s
T2 (1oYt) = 950 / 14.3 x 60
T2 (100Yr) = 950 / 14.3 x 60
T3 = CHANNEL FLoW, 500 FT @ 9%.
ROADSIDE DITCH - 2, DEEP 3:1 SIDES. n = O.O5
v10 & v100 = 1.49/n x (A/P)^.67 x S^,5
V10 & v100 = 1.49/n x (12J12.6)^.67 x .09^.5
T3 ( 10yr) = 500 / 8.7 x 60 .
T3 ( 100Yr) = 500 / 6.7 x 60
TOTALTcIO = 19.9.+ 1.1 + 1.0 =
TOTAL Tc1 00 = 14.6 + 1 .1 + 1 .0 =
INTENSITY ( | ) (Vail IDF Curves) =
I 10 =
1100=
PEAK FLOW RATE ( a )
Q 10 = (0.25) x (1.9) x (1a.f =
Q 100 = (0.50) x (3.7) x (14./) =
8t22t01
EAST DRAINAGE AREA - EXISTING CONDITIONS
Job No. 1039
By:GKM
C100 =0.50 Runoff Coefficient - C
from Table 3_1 , Urban Drainage
19.92 min.
14.06 min.
14.27 tps
1.1 min.
1.1 min.
8.65 fps
1.0 min.
1.0 min.
22.0 min.
16.1 min.
n = 0.05
A/P = 5/1 1 - 10Wx0.5'd
s = 0.66
n = 0.05
Np = 1a12.6
s = 0.09
Intensity (l) from
Town of Vail IDF curves
1.9 in./hr.
3.7 in./hr.
Q=ClA
6.98 cfs
27.2O ds
MIDDLE CREEK VILL.AGE
RATIONAL METHOD
TOTAL AREA =
C1-PVMT&BLDG
C2 - FOREST
C10 =
C100 =
a!. Ac
1.3 AC
C10 = 0.88
1.5 AC
C10 = 0.25 C100 = 0.50
(0.88 x 1.3) + (0.25 x 1.5) t2.B
(0.89 x 1.3) + (0.50 x 1.sl 1 2.8
Runoff Coefficient - C
from Table 3-1 , Urban Drainage
Runoff Coefficient - C
from Table 3-1 , Urban Drainage
n = 0.025
A/p=6/13-12'Wx0.5'd
s = 0.11
lntensity (l) from
Town of Vail IDF curves
8t21t01
WEST DRAINAGE AREA - DEVELOPED CONDITIONS
Job No. 1039By: GKM
C100 = 0.89
0.54
0.68
TIME OF CONCENTMTION
T1 = SHEET FLOW, 300 FT @ 40%.
T1 (1 0 yr) = (1 .1 - 0.88) x Length ^112 I S ^1t3
T1 (100 yr) = (1.1 - 0.89) x Lengrth l1/2 / S ^1/3
T2 - SHALLOW FLOW, 550' @ 4ooh
V10 = 1.49 / N x (A/P)^ 2l3xS^ 1t2
V100 = V10
T2 (10 Yr) = 550'/ 11.78fpsx60
T2 (100 YD = 550' / 11.78fps x 60
TOTAL Tc10 = 13.0 + .8 =
TOTAL Tc100 = 9.8 + .8 =
INTENSITY(l)=
I 10 =
1100=
PEAK FLOW RATE ( O )Q=ClA
13.07 min.
9.82 min.
11.78 fps
11.78 fps
0.78 min.
0.78 min.
13.8 min.
10.6 min.
2.2 in.lhr.
4.0 in./hr.
Q10=
Q 100 =
(0.54) x (2.2) x (2.8) =
(0.68) x (4.0) x (2.8) =
3.34 cfs
7.63 cfs
MIDDLE CREEK VILLAGE
MTIONAL METHOD
TOTAL AREA =
C1 . FOREST
C2. PVMT & BLDGS
G10 =
C100 =
TIME OF CONCENTRATION
T1 = SHEET FLOW 300 FT @ 4O%.
T1 (1 0 t4 = (1.1 - 0.37) x Length ^1/2 / S ^1/3Tl (100 yr) = (1 .1 - 0.57) x Length ^1/2 / S ^1/3
T2 = SFI.,ALLOW FLOW, 950 FT @ 66%.
1O'WIDE, 0.5'DEEP
V'|0 & V100 = 1.49/n x (A/P)^.67 x S^.5
V10 & V100= 1.49/n x (5/1 1)^.67 x .66^.5
T2 (10 Yr) = 950 / 14.3 x 60
T2 (1 00 yr) = 950 / 14.3 x 60
T3 = CHANNEL FLOW, 500 FT @ S%.
CURB & GUTTER - 6' DEEP, n = 0.013
V10 & V100 ='1.49/n x (A/P)^.67 x S^.5
V10 & v100 = 1.49/0.013 x (3.5/14.5)^.67x.09^.5
T3 ( 10 yr) = 500 / 13.3 x 60
T3 [1 00 yr) = 5OO / 13.3 x 60
TOTAL TclO = 17.2 + 'l.l + Q.g =
TOTAL Tc100 = 12.4 + 1.1 + 0.6 =
INTENSIW( l) =
| 10 =
1100=
PEAKFLOWRATE(a) Q=CtA
Q 10 = (0.37) x (2.1) x (14.7) =
e 100 = (0.57) x (3.9) x (14.7) ;
o
Et22t01
EAST DRAINAGE AREA. DEVELOPED CONDIiIONS
Job No. 1039By: GKM
14.7 AC
12.0 AC
C10 = 0.25
2.7 AC
C10 = 0.E8 C100 =0.89
(0.25x12.0)+(0.88x 2.71t14.7 = 0.37
(0.50 x 12.0) + (0.89 x 2.71t 't4.7 = 0.57
Runoff Coefficient - C
from Table 3-1, Urban Drainage
n = 0,05
Ng='5t11- 1O'VVxO.s'd
s = 0.66
.n = 0.013
A/P = 3.5/14.5 - 14Wx0.5'd
s = 0.09
Intensity (l) from
Town of Vail IDF curves
C100 = 0.50
17.21 min.
12.38 min.
14.27 tps
1.1 min-
1.1 min-
13.27 fps.
_
0.6 min.
0.6 min.
18.9 min.
14.1 min.
2.1 in./hr.
3.9 inJhr.
11.29 cfs
32.77 ds
3
oir
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o
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trIvdraulic Calculations
o
MIDDLE CREEK VILLAGE
H Y D RA U U C CA LC U I-ATI O N S
8t22t01
INLETS: SUMP CONDITION
Use D&L l-3386 Grate
Open area = l.S sf
Ponding Depth = O.S ft
O.7 (30% clogged)
0.6 entrance loss coef.
ORIFICE EQUATION - V = C x (2gh)^1/2 and e = KVA
[ = 3.4 fps
Q = 6.0 cfs
West Drainage Area - Q10 = 3.4 cfs, Q10O = 7.6 cfs
2 - fnfets (one on each side of Mt. Bell Road - 6 cfs X 2 = 12 ds
East Drainage Area - Q10 = J 1.3 {r, e100 = 32.8 cfs
2 - f nlets (one on each side of Mt. Bell Road - 6 cfs X Z= 12,gs
.Qto o -ole
&,0 ' olc n
rel'-rt ,t
:{t
-4i.
=t fi-c' ll
?t 3/4,__1
I
r
Appx. Wt. 91 lbs.
*:tq./
€r
--& .
*.-v
4t
*..y
-f"l-
i8L(
__l
SiclFllrlet Catch Basin Frame, E-BZ34 :l.lTll.lcatch Basin Frame
and Cover
Appx. Wt. 590 lbs.
Available with:
T-.r ./{
|
I r--fe 1/.' ,
I
zZ-Ft'I
-,1
K-t
-Zq
+J
,{4..!.i' IFa ,l
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Ta'J
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+n
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La,
a 3 0F .-SIDE! FRA{E
Catalog No. Type of Grate Total Weiqht Cataloq No. Tvpe of Grate Total Weiqhtl-3440 2 Srded Concave 340 l-3446 3 Sided Flat 360
2 Sided Flat 340 l-3448 4 Sided Concave 380
l-3444 3 Sioed Concave 360 l-3450 4 Sided Flat 380
WLffi"V5
Table
Rating Table for Circular Channel
Project File
Worksheet
Flow Element
Method
Solve For
Circular Channel
Manning's Formula
Constant Data
ManningsCoefficient 0.010
Depth 1.30 ft
Diameter '18.00 in
Minimum Incremenl
Channel
Slope
(fuft) (cfs)
0.005000 0.050000 0.005000 fuft
Discharge Velocity
(fus)
Channel
0.005000
0.010000
10.09
14.26
Maximum
0.015000
0.020000
0.025000
0.030000
0.035000
0.040000
0.045000
0.050000
17.47
20.17
22.s5
24.70
26.68
28.53
JU.ZO
31.89
6.20
8.77
10.74
12.40
13.86
15.18
16.40
17.53
18.59
19.60
..
:;:i::.t
.a
', ,,f:
.--,,4
o8t2zo1
04:43:52 PM
FlowMaster v5.15
Pagc 1 of IHaestad Mathods. Inc.37 Brookside Road Waterbury, CT 06708 (2O3) 755-1666
o
Table
Rating Table for Circular Channel
Project File
Worksheet
Flow Element
Method Manning's Formula
Solve For Discharoe
Constant Data
ManningsCoefficient 0.010
Depth 1.75 ft
Diameter 24.00 in
0.010000 30.90 10.60o.olsooo 37.84 12.s8 rf p t,,n = 33 c--I> i< rz6(J.
0.020000 41.19 119s uSE Z+,,C (,50/o/,(,.A,0.025000 4E.86 16.76
Channel
Slope
0.005000
0.030000
0.035000
0.040000
0.045000
0.050000
Maximum lncrement
21.85 7.50
53.52 18.36
57.81 19.83
61.80 21 .20
65.55 2.49
69.09 23.70
oat2zol
04:42:53 PM
FlowMaster v5.15
Page I of 1
Minimum
Discharge
Haostad Methods, Inc. 37 Brooksido Road \ latcrbury, CT 06708 (203) 755-1666
o
Noise Study
Planning and Environmental Commission
March 11,2002
- Tfl'vxenor rflnn IRoN,\TENTAL
'=-)-=-=-:.=
Ac ouslrcs ANo VrBl^rroN CoNgurInG
January 28,2002
otis odeli, AIA
Principd
Odell Architects
32065 Castle Court, Suite I50
Evergreeq Colorado 80439
T'\-or \;f. Azlall
This letter describes the results of the noise analysis that Hankard Environmental conducted for the lvliddle
Creek Affordable Housing Project in Vaii, Colorado. The purpose of this snrdy was to compare the
calculated overall interior noise levels for the proposed stmctures to the U.S. Deparmlent of Housing and
Urban Development (HUD) interior noise goal of 45 dB(A).
To answer this questio4 the existirg noise levels, lnterstate 70 (l-70) trafEc volurnes and speeds were
measured at four locations on the project site. These levels were then adjusted to make them
representative ofpeak-hour traffic volumes and speeds on I-70. Next, the adjusted noise levels were used
to predict exterior noise levels at the fagade of the proposed structures facing I-70. Fi-nally, knowing the
erterior noise levels and usiag standard building materiais for exterior walls, wi:rdows and doors, the
irterior noise levels were calcuiated and compared to the HUD noise goal of a5 dB(A). The following
provides the details of each step followed by a summary of the complete analysis.
Existing Noise Levels
Existing noise levels were measured at the four iocations shown as M I throug} M4 in Figure i . These
measurements were conducted using a Norsonics Tlpe 114 Octave Band Sorurd Level Meter (SLM),
which meets the ANSI Type I specifications. The SLM was calibrated prior to each of the four
measurements and re-checked after each measurement. The measurement locations were selected to
coincide (where possible) with future building locations. In addition to the noise levels, the traffic
volu:nes and speeds along I-70 were monitored as well. The purpose of measuring the uaffic volumes and
speeds is to allow for adjlstments to the measured noise levels to simulate peak-hour (loudest hour) noise
levels.
Figure I and Table I show the overall measured noise level for each measurement location- The measured
levels ranged from 63 to 68 dB(A). The traffic volumes along I-70 during the measurernents ranged &om
27o/o to 37o/o lower than peak-hour (loudest hour) volumes provrded by CDOT. To compensate for thig
the noise ievels were iacreased by 1.2 to 2.0 dB(A), as applicable. Conversely, the average traffic speeds
during the measurements $'ere about 7 mph faster (louder) than peak-hour aver€e traffic speeds per
CDOT traffic studies. To compensate for measuring noise levels during faster traffic speeds, ail the
measured noise levels were decreased by 0.5 dB(A). The overall adjustments to the measured noise levels
were increases of 0.7 to 1.5 dB(A). Thus, the existing peak-hour noise levels for these measur€rnent
locations ranged from about 63 to 69 dB(A). These adjusted levels are shown ia Figure I and Table l.
103 East Simpson Street, Suite 100 . Lafavette, Colorado 80026
ph: (303) 666-0617 . fax: (303J 666-1053 . wwvr.hankardinc.com
ANKARD
flnwrnoNMENTAI
--€=_:-:-TABLE 1
E}OSTING NOISE LEVELS _ MEASURED AND PEAK.HOUR
Measuremmt
Location
Measured Noise
Level
(dB(A))
Overall
Noise Level
Adjusment
(dB(4)
Peak-Hour
Noise Level
(dB(A))
M1 or. t + 0.7 63.4
I,l2 67.5 +L5 69.0
M3 64.8 + 1.5 66.3
M4 62.5 + l-5 64.0
Using *re peak-hour noisc levels, exterior noise leveis at the front fagade (facing i-70) of the proposcd
strucrrrres were calcuiated (See Figure 2 and Table 2). Each proposed srucnre was assigned a buiiding
letter (two of the structues are parking garages which were not analyzed). To be consenvative, noise
levels were calculated for the highest occupied floor of each proposed sructure, which typically will be
the loudest. These levels were calcuiated by appllrng a distance correction to account for the proposed
stucture beiag closer or farther away from I-70 than the respective measurement location- Additionally,
an elevation correction was applied to account for tbe reduced sound absorption due to the proposed
stuctures being elevated higher than the measurement loc*ion. The predicted exterior noise levels range
from 64 to 69 dB(A), as shown in Table 2.
TABLE 2
EXTERIOR PEAK-HOLR. NOISE LEVELS AT EACH STRUCTURE - CATCTLATED
Proposed Structue
(--)
Peak-Hour
Exerior Noise Level
(dB(A)
Multi-Family Residence (A)66
Multi.Family Residence (B)69
fy{fl1i-['arni ly Residence (C)68
lvlult- Fanily Residence (E)o/
Multi- F amilv Residence (Fl ot
Muiti-Fanity Residence (G)67
lvlulti-Family Residence (H)o/
M ulti- Famiiy Residence (I)ol
Daycare Center (K)64
Middle Creek Affordable Housng Interior Noise HW Companson page 2
ANKARD
Irwm.oNMENTAr
€
Comparison to the HUD Noise Goal
The U.S, Deparunent of Housing and Urban Development (HLID) interior noise goal of 45 dB(A) is
technically a day-nigbt aver€e noise level. However, HUD guidelines state that this can be applied as a
design-hour (peak-hour) criterion as well (Ref The Noise Guidebook U.S. Department of Housing and
Urban Development, I99 I , i5 I . I 06). Table 3, below, shows the calculated interior noise levels for each
of the proposed sfuctures using the standard construction materials described above, which provide about
26 dB(A) of overali transmrssion loss (Ref. Noise Control for Building and Marufacturing Planrs,
Layman N. Miller, BBN, 198I, Table 6-7). Note that one assumption made here is that all windows are
operable but close{ and that they cover no more than l0-20o/o of the exterior wail area- It can be see,n that
aii of the cclcuiateci interior noise ieveis, using standard construcrion merhods, achieve the HtiD interior
noise goal of being at or below 45 dB(A).
It was assurned that sandard exterior wall construction consists of a 4" exterior wall with %" drick g)?sum
wallboard on the inside, %" thick plyrood on the outside, and acousticaliy absorbent material (i.e.
fiberglass) loosely filling the cavity. Stmdard windows were assumed to be double paned with a 0.2"
airgap. Additionally, because these multi-family structures have exterior doors opening directly to the
outside, all doors facing I-70 were assumed to be solid core wood (or acoustically 5imil21661grial) tlnt is
2" thick (or a density of 8 lb/ff) and well gaskaed.
TABLE 3
]NTEzuOR NOISE LEVEL USINC STANDARD EXTERIOR WALL CONSTRUCNON - CALCIJLATED
Proposed Structure
(--)
Peak-Hour
Exterior Noise
(dB(A)
Standard Extenor
Wall Construction
Trrn smi ssion Loss
(dB(A)
Peak-Hour
Interior Noise Level
(dB(A)
Mdti-Family Residence (A)66 z6 40
Multi-Famiiy Residence (B )69 26 +J
Multi-Famiiy Residence (C )68 26 42
N{ulti- Family Residence (E)o/26 4l
Multi-Family Residence (F)67 26 4l
Multi-Family Residence (G)o/26 4l
Multi-Family Residence (H)67 26 4l
Multi- F arrily Residence (l)67 26 4l
Daycare Center (K)64 26 38
Middle Creek A-ffordable Houing htterior Noise HUD Compoison page 3
ANKARD
fnrvrnoNMENTAr
€
Summary
The noise level measurements and analysis show that the proposed Middle Creek Affordable Housing
prgect wll/ achieve the HUD interior noise goal of a5 dB(A) using standad orterior wall constnnction.
The analysis was conducted for the front fagade of each proposed structure facing I-70. The standard
exterior wall construction consists of a 4" exterior wall with 72" thick gypsum wallboad on the inside, %"
thick plyrood on the outside, and acoustically absorbent material (i.e. fiberglass) ioosely filling the cavity.
Standard windows consist of double paned windows with a0.2" ar gap. Standed doors, for those
exterior doon facing I-70, consist of a soiid core wood (or acoustically similar marerial) door thar is 2"
thick (or a density of 8 lb/ff) and is well gasketed.
Though this site is nosier than the average residential neigbborhood due to its proximity to I-70, a
reasonable interior noise lwel is achievable. Meeting the HUD requirernent would resuit in an interior
space that is livable from a noise standpoint, but the highway wouid be audible. it should be noted that
this analysis was conducted using peak-hour (loudest-hour) traffic conditions, which typically only occur
for a total of about tro or three hours per day.
Thank you for involving us with this project. Please cail if you have any questions, or we can be of firther
assistmce.
Sincerelv.
/)?t7u-c
JeffCegan
Senior Engi:reer
Attachments: Figures i and 2
Middle Creek AfJordable Housing [nterior Noise HUD Comparison Fge 1
__-:-..'t.--*
Building Code Analysis
Planning and Environmental Commission
March 11 ,2002
ODELL ARCHITECTS PC
Name of Project!
Location:Vail. Colorado
O.A. Project Number:
Date:
Middle Creek 0120
Applicable Gode:
Code Gheck by:
Project Overview
ITEM
Tony Nutsch
1997 IJBC
Februarv 11.2002
SECTION
Occupancy Classification :
Principal Occupancy:
Others: Parking
Community Space
Day Care
U-1 (if<3,000 sf) if over 3,000 sq.ft. area separation
will be orovided
Chapter 3
R-1 Table 3-A
Table 3-A
Table 3-A
E-3 Table 3-A
Occupancy Separation Required
Occupancy to
R-1
Occupancy
tt 1
Hours
One ( 1) - hour Table 3-B
t(- I -+ One (1) - hour Table 3-Bto
lo
to
-+
-)
Accessibility
At Building 'A'Accessible Units 6-units
At Building 'B'Accessible Units 6-units
Total 12-uits
12 -units / 142-toal units = 8.5 % units are accessible
ODELL ARcHITEcTS, P. C.
Architecturc Planning Intcriors
Building'A'
Occupancy Classification:Chapter 3
Principal Occupancy: R-l Table 3-A
Others: Parking U-l (if<3,000 sf) ifover 3,000 sq.ft. area separation Table 3-A
will be orovided
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
R-1 to U-l -+ One (l) - hour Table 3-B
to
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adiacent to ogen area on two sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Parking (U-1 Occupancy)
Total Floor Area - Bldg. 'A'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-lhr.Table 5-B
10.500 so. ft. Table 5-B
10,500 sq. ft.
NA Section 505.3
Section 505.1.1
lf adjacent to open area on three sides: > 40 feet(100%) 21,000sq.ft. Section 505.1.2
Sechon 505.i.3
42,000 sq. ft.
I7,930 sq. ft.
6,644 sq. ft.
24,574 sq. tt.
Fifty (50) Table 5-B
Three (3) Table 5-B
48',-6"
Four (4) -increased one story for Section 506
fullv sprinkled
ODELL ARcHrrEcrs, P. C.
Arch i tec tu re Planning Interiors
P.ge 2 of l1 }Lwojects\0 | 20,Code Rcview\MCk_Code-Rc!i.w.doc
Building'B'
Occupancy Classification:
Principal Occupancy: R-l
Others:
Community Space B
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
Chaptcr 3
Table 3-A
Table 3-A
to
IO
t(- |B -+ One (1) - hour Table 3-B
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Comm. Rms. (B Occupancy)
Total Floor Area - Bldg. 'B'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-lhr.Table 5-B
10,500 sq. ft. Table 5-B
10,500 sq. ft.
NA Section 505.3
Section505.l.l
Section 505.1.2
Section 505.1.3
21,000 sq. ft.
9,417 sq. ft.
3,262 sq. ft.
12,679 sq.It.
Fifty(50) Table 5-B
Three (3) Table 5-B
46'-6
Four (4) -increased one story for Section 506
tully sprinkled
ODELL ARCHITECTS, P. C,
A rc h itcc tu rc Planning Intcriors
Pag. 3 of 11 H:\Projccrs$l 20\Codc Rcvicwwlck-Codc-R.vicw.doc
Building'D-E'
Occupancy Classification:Chapter 3
Principal Occupancy: R- I Table 3-A
Others: Parking U-l (if<3,000 s0 ifover 3,000 sq.ft. area separation Table 3-A
wiil be orovided
Occupancy Separation Required
Occupancy to Occupancy --+ Hours
R-1 to U-l -+ One (l) - hour Table 3-B
to
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Parking (U-1 Occupancy)
Total Floor Area - Bldg. 'D-E'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-lhr.Table 5-B
10,500 sq. ft. Table 5-B
10,500 sq. ft.
lf adjacent to open area on two sides: (26- 20 feet) * 1.25yo = (7 .5%) Section 505. 1.I
i'21,000 sq. ft. = 1,575 sq. ft.
NA Section 505.3
Section 505. i.2
Section 505.1.3
)) \1\ <a ft
16,333 sq. ft.
5,902 sq. ft
22,235 sq. ft.
Fifty (50) Table 5-B
Three (3) Table 5-B
45'-6"
Fow (4) -increased one story for Section 506
tullv sorinkled
ODELL ARcHrrEcrs, P.C.
Arc hi tccturc Planning lnteriors
rage ) oI H:\Projects$l 2o\Cod. R.vicw\i4Ck-Codc_Rcvi€w.doc
Building'F'
Occupancy Classification:Chapter 3
Principal Occupancy: R-l Table 3-A
Others: Parking U-l (if <3,000 sf) if over 3,000 sq.ft. area separation Table 3-A
will be provided
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
R-1 to U-l -+ One (1) - hour Table 3-B
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-l Occupancy)
Area of Parking (U-1 Occupancy)
Total Floor Area - Bldg. 'F'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Tlpe V-lhr.Table 5-B
10,500 sq. ft. Table 5-B
10,500 sq. ft.
NA Sechon 505.3
Section 505.1 .1
Section 505.1.2
Section 505. 1.3
21,000 sq. ft.
4,396 sq. ff.
5,897 sq.ft.
10,293 sq. ft.
Fifty(50) Table 5-B
Three (3) Table 5-B
49',-0"
Four (4) -increased one story for Section 506
fully sprinkled
ODELL ARcHITEcTS, P.C.
Architcctur€ Planning Interiors
P.gc6ofll H:\Projcca\01 2o\Codc Rcvirwwck_Codc_Rcvicw.doc
Building'G'
Occupancy Classification:Chapter 3
Principal Occupancy: R-l Table 3-A
Others: Parking U-l (if<3,000 sf) ifover 3,000 sq.ft. area separation Table 3-A
will be orovided
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
R-1 to U-l --+ One(l)-hour Table 3-B
to
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Parking (U-1 Occupancy)
Total Floor Area - Bldg. 'G'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-11u.Table 5-B
10.500 so. ft. Table 5-B
10,500 sq. ft.
NA Section 505.3
Section 505. 1 .1
Section 505.1.2
Section 505.1 .3
21,000 sq. ft.
19,063 sq. ft.
NA
19,063 sq, ft.
Fifty (50) Table 5-B
Three (3) Table 5-B
4't'-0"
Four (4) -increased one story for Section 506
tully sprinkied
ODELL ARcHrrEcrs, P.C.
Architecture Plannine lnteriors
raSc/olll H:Vrojcct5\0 | 20\Code Review\MCk-Code-Revicrv.doc
Building'H'
Occupancy Gldssification:Chapter 3
Principal Occupancy: R-l Table 3-A
Others: Parking U-l (if<3,000 sf) ifover 3,000 sq.ft. area separation Table 3-A
will be orovided
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
R-1 to U-l -+ One (1) - hour
to -t
Table 3-B
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Parking (U-1 Occupancy)
Total Floor Area - Bldg. 'H'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-lhr.Table 5-B
10,500 sq. ft. Table 5-B
10,500 sq. ft.
NA Section 505.3
Section 505.1- I
Section 505.1.2
Section 505. 1.3
21,000 sq. ft.
19,063 sq. ft.
NA
19,063 sq. ft.
Fifty (50) Table 5-B
Three (3) Table 5-B
47'-0"
Four (4) -increased one story for Section 506
fuliy sprinkled
ODELL ARcHITEcTS. P. C.
Arc h i tc ct urc Planning Interiors
PaSctofll H:\Projlca\0 I 20\Codc RcvicwMck_Codc-Rrvicw,dor
Early Learning Center
Occupancy Classification:Chapter 3
Principal Occupancy: E-3 Table 3-A
Occupancy Separation Required -none required
Occupancy to Occupancy -+ Hours
Table 3-B
Table 3-B
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Type V-N Table 5-B
9.100 sc. ft. Table 5-B
NA
NA Section 505.3
Section 505.l.l
Section 505.1.2
Section 505.1.3
9,100 sq. ft.
1s Floor Area (E-3 Occupancy)3,811 sq. ft.
2nd FloorArea (E-3 Occupancy)
Total Floor Area - Early Learning Center
Maximum Allowable Height:
Faal'
Stories:
Building Height:
Feet:
Stories:
1.371 sq. ft.
5,182 sq. ft.
Forty (40) Table 5-B
One ( 1) Table 5-B
28'-0"
Two (2) -increased one story for firlly Section 506
sorinkled
ODELL ARcHrrEcrs, P.C.
Architccture Planning In tcriors
Pate9ofll H:\PmiecEsl2o\Code Revi.w!\4ck Code Revicw,doc
Lower South Parking Garage
Occupancy Classification :Chapter 3
Principal Occupancy: U-l Table 3-A
Occupancy Separation Required -none required
Occupancy to Occupancy -+ Hours
Table 3-B
Table 3-B
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled:
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
1't Floor Area (U-1 Occupancy)
Total Floor Area - Lower So. Parking
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-N Table 5-B
9,100 sq. ft. Table 5-B
NA
NA Section 505.3
Section 505.1.1
Section 505.1.2
Section 505.1.3
9,100 sq. ft.
2,996 sq. ft.
2,996 sq. ft.
Forty (40) Table 5-B
One (1) Table 5-B
22',-6"
One (1)
ODELL ARcHITECTS, P. C.
Archite c lurc Planning Interiors
H:\Projccts\o | 20\Code RcviewWCk_Codc_RcvicwdocPagr l0 of I I
:".
Upper North Parking Garage
., t i, ,:;r :. 'Occupancy Classificationr "
'r,il+, :'t'.,-, ...1. ;,tl:if
Principal Occupancy:
.t.'.i\. ;,..' . .._i-in','...l; r,'
Occupancy Separation
Occupancy
u-1
"h':"
Required -none required
to occupancy,:{tiS1'HoUrb\,'i,\tt
to
Maximum Allowable Basic F[oor.Are?i n. .
lf over one story: (2x) - ) ''. ;
"j rj' "
Construction Type:
lf Sprinkled: , il .lr : ,.
lf adjacent to open ari:a on two sides:.
lf adjacent to open. area on three sides:
rf adjacent to openiaieE'dhbii\id"U.t'
Total Allowable Floor Area ,
1
tt Floor Area (
Building Height:
Feel:
Stories:
, i, : '
? r''!- ' II
9.100 so. ft. ' Table 5-B-_ffiii, J .,r-, . \ ' r'\'D.
Type V-N
'i!\NA Sectiop
! .;., .
o DELL e noi ri're.tE,'.P1d
Archite c ture Plann ing'Interiors
H:\Proj€cls\0 1 20\Codc ReviewMCk_Code_Review.docPagc ll ofII
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Hazard Reports
Planning and Environmental Commission
March 11.2002
Jan 31 OA tr:l:25j(
Jarruary 3l-r, l{t02
Mchael Oouglriir & Cr:,ntirarl,
Atrn: Ivhchaei Co lghliu
1.10 Easr lgth Av muq Suile 700
Denver, (lcrloradc tt)201
Subj ect:(ieohita rils l! I itigei ion - Additior:ai Infonnation
h,tirldie llreek liilage at \hil Development
\/til, Ct'lcradr
.iob l',1o. ldri1i
p.2
lvlr. L'riuEitiitt.
As clisc^r:;setl r,rih -vou at a nteetin-e at tln ollce of Odell Archi.ects on JatuarY 29, 2002,.we are
proUAi"g addirio rai init irilarion r€garding the proposeri debris llcw hizard nritig.ation at the subject site,
an V"nit ar:e1i :ri the meering a.ra during thameeting a cor.l-erqict r;all wali plrced to {.ireS Hall of the
To'.l'u cf :iiii[.
Art i{.:ius iric..iri*en r. lotiel t<.r dre'l',r$,n of \iail dated Iaruai,; 15 20C2 wl'erein he ccnr:rented on
propr'rsed rlebris tiov i:riitil;atiOn rneazures as outlingJ in cur letler to 1'cu drtd l)ecembcr 13' 2001' Ouf
iarp'"6" l.r:flr.; tr, \,'ail's c<,'nme:rttS dared Januan' ?1. 200? \'ias t€t revisreri by An' Hc e-xpressed
*rr..n, thar a riiv*rsic,n ,va.il rnny noi adeqrrately protect the proporrerl brrildirrgs, since a ciebris flow
similu 1r, ilral vr: rich oculrre,,'l ia Borrth Creek in i98q could o'ier:(p tlte 'val: and debris cauld flow
south rr; r.hc pr,trcsei. ,lar.elcprnent. Accordingl-r, it is prudent lo dillgn sm:ctlres ai risk to vuithstand
either slar i;: ?t' ';1'r tantic io.rCs bcnr Cebiis ilsru events'
prior to cr-ir;s{r.igioa .;re lrrii ws:k with An to ccnduct iieid studies lnd deveic l design forces that will
be provi<ie,j io trr str,.tsf,.u'al engineer tbr itrcorporation rnt.o i.he stiuctwe de,rigns. P'riential changes
i*i*Or adriiiir,ti r-eir:i:'urcen::nt ln u'alls,, l:cunleil'tts' and prctectinrl or elirnirreting rv^trdov;.'; Ltr so-me
areas. li,ei ai r-,f rhe sii-Jci n,.:s ivi:ll need to be nrcdifred. In our opinicr! the sL-uciltres oan be designal to
r,riti rare l!ir: nrk'irrrn rle..l;.ll'" Llr;ivs.
h ar-rcoic1Lr:ir: rrr ih 5e:iic il 1 1-: ]..1 5 r;1' l.he 'Ic'.T ',r of Vail Cccio. $e stalc that the proposed mitigation
can be lrli;cmi:ii:;htti Il rr-'riur:e the dalgerrc tlle plbiic heal'ih' ;af':ty' oI l() p(rpslrt'tlueto problems
relatecl ic i;ml.;g r: :t:miiti-,i1,:o a iesciable le"ei. a'.j thet 1e, prq:t'sed fleveli-)pment will not inorease
the hira"r:i r,t c,Jr r lrcceil, ", ,..=u"coes or to pubilc buiiiings, rigbtt<rf-rvay, rr:ads' sreets, easementg
utiliries. r:'r tacilit ies ct othcr praperties cf s.rD$rlciion
DEllVEi l5:;t r.l,!:\tt :,r:t,'i'riils'raiIj
303..r5:.31l:
'Ji !r -=ai i-lidge. CC 80c:l?
Faxi 103 i'63.9ii21
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:'/::i:FEf lr lii;3 816.1455
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rr:S1'.:r- r.l il OFi ri0.:r18.5803
ENGINEERS & GEOLOGIIS_I S
oJan 31 OZ C 3i ZL:I p.3
Ddris Flow Mrligatim
hblb, 14613
PCSo 2
Please call whh sor,- questiotts.
Sinceretl.
CIIU8.C]I & A.srociatcs, Jn+.
,CL-o! r:. 6.,-6--
David A. Cushnrrq CPG
Engineering f.ieo ogis
2 Ccpies Serr
Fa:nxJ br lrfichec Coq;;lrlin at 303-,363-7lL\J
Fated t'r .\r I,Ier.r:l at 9'7'i< ,4 l-3 236
I capy :c rJdeli l;chix,rts., li' rl. .Aitn: Lee l,fsson 32055 Castle Crrurt, Suite 150 Evergrec'n, CO S0439
Fued to .i 0i-r'r7(.7 i [.?
1 ccpy r:c Ptak L rnd crnsuitrnts, .Ann: Mrrx Tanall 1000 Lion's Ridl5e Lo,rp, \'ail" co s1657
tr$riffi
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Jan 31 Oa Ci:l:::'6f
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Jan 30 :lt C3l laP
P. 1+
ART YEARS PAGE 61
p.e
Pocr-lf
Jaurary 30 20ffJ
Michrcl Co,rghlin & r-tonpury
Attn Mi'Jue[ Coughli;a
I a0 Ecq 1l.h Avr:u,c, Suire i00
Ilt,nv{|1, 1.c'; ffsdr 80203
!)uirlrr:l: (h cl,.cu.lrrds l,$tigUion - A&liriorst i irnn.rrion
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Ag rJl!r*"!rr t r; h ,rcr st ! r[r"cti g !t lhe cfrL:! gf odcll Archhcctg o[ Jsnu&] i9, 1c02, rrye srepn:r;din1g Br. Cni{rui iu:b:rnnicn r;garding thr ornposod dcbdr flovr hrr:ard midgarion s.r the srtjs6 sir,eAtl itt".eti 0l Lndec lirc rnlrtiilt,. art dJrin* rhe mcg,lln$ r cnntbFsncc ccjl u'ls p6ccd tc {hcg tttli of thcTo'*l ,,r!' ita.l.
An !1.*r! htd *riqon I l€rt.r to thc Town of \'dl i1rtcj Jggrry 10, ?0{)l Wirrrar hl ggmn.+;!td on
paFgi;iC rirrirril flo'r $ftjBlfiol rrea{utc! an cnrCinrj i$ or$ ltntor to vos Jri:lrd Dm:mher l], 7.001. (hn
rcsl}t'rii( ltf rr rC '/rji r '({lmftHr$ *!ad JCnuBr:,' 2l. ?W2 u/sr ftor fi|r'.icwnd b1, A.r. Htr crpr*raed
c()fcgirl il,*i rr div,:r]Blsn wrlj rnry rot ad!{i'Jrlciv nrctn*t rhl fr's,pc$ad b,rildingr, rinrx a deb:tf flrry
'ilili,..ti li) i;i ',i *liich o(iul'rtE rll Bwt Crr*li .ii i9$i r;r^dj ow lop t[!, wall arJ ocbrir colid ltow
sou r iD lb" ?rE,€olL'J ;ic'reloprlc{! Ac€odu€ty. ( i! tr\dcr! ro ireriBn ,inrruE! a ic* to wrttrsand
cit! t:r ltsic r 'r finr:elc hrrds fl>m Cebdl flow fr,efir
Fnr,t 1{i ,i}:ft int{ip1 a e 'alil wlrk uyilh i{r1 lij c;'Educt flCC rnrriw $d ,irciog drxign forcrr tttr wiil
lE ;rii.rvitl.d r.i r.h rti!.ciJel cnginc; lor icror porer bn iBlo tlrc rtrrc{u,} deugnl F tter:tial dr.angcl
.ncnrdr rddi i.r.'rll rs;Dl:rtq?6crt :n *ciiL ;r,urreibl![ rnd prdrctj;lg o, alir ;nfiirrg ".indou,r io rornc
ueri-" )i.l i if th{: lrni.utrer ',i rll rr*tl tr, br flnrji{-icd. ln qli opininn, &c rrrtunr can br &agnad to
ntn r!r*e t:h.! i:ii( ttn. dFt,tu Fk'?rg.
l-n r. ic4rrnr : :vitl, tcsucn l i.ll - l J {f rho Towlr cl"r'ril Ccdei x',i $rto drat the pro 0oc6d nrri$tion
cen i:s ri.{cr-.r rpilchr:d 1$:t*tca lh! ,Jrtuf tn *:c p*};];c irrultlf 38fet.:.. cr to pro:rcrry fuc to g:,bismr
reitt*i in qe,icr6c ;ccl:ir', i:i ti n iic*sfiflcbir iuvrr!, [rrC iltli fu pn:'pltC dwehpcoeo wi]] oct iocg.rc
thr !ru*ru'r rn: {r1h€':rrc.,r.:'r../ i)r .iit1}.-,tJ:li or to pl;l{lt: irutltlicgrf ttglrr-of.;vly, m.gdt |i:!ttj, Grs.rltctrl4
util?lrl;. u'II :ir ii":s :rr rt'rrr 1:;r:F+ni*t of r:r:nSuucticr:
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Fhq/tf l-ro adl 323^.Phc''{tcG +ua 1eL7 ,toi"3o3 lJo3 93ij4 Far r
rotntein Consulting Sgineers, Inc.
Consulting Geotechnical Engineers
Pkwy . Suite 115. Lakewood, CO 80228-2845
AVON
(s7o) 94s-600s
(970) 949-9223 FAX
August 23,2001
Odell Architects, P.C.
32065 Castle Court. Suite 150
Evergreen, CO 80439
Subject: Preliminary Geotechnical Investigation and Geologic Hazard Studies
Proposed Development - 6.5 Acres
Middle Creek Village at Vail
Vail, Colorado
Job No. 0l-136
As requested we have performed a preliminary geotechnical investigation and geologic hazard study for
the subject property. The purpose of this letter is to present our general conclusions regarding the
preliminary geotechnical investigation and geologic hazards.
We anticipate that the subsurface conditions throughout the developnrent will consist of granular alluvial
soils. These soils should safely support spread footing foundations and slab-on-grade floors for the
proposed structures. Excavation ofthese soils will require heavy-duty construction equiprnent. It is our
opinion, that development of this site will require typical mountain construction techniques.
Based on current and previous geologic hazard studies, the subject site is within a rock fall hazard and a
debris flow hazard. Fortunately, both of these geologic hazards can be successfully nitigated. For
additional information regarding preliminary geotechnical recommendations and geologic hazards refer
to our Preliminary Geoteclurical Investigation and Geologic Hazard Studies report, dated August 23,
2001 .
We appreciate the opportunity to provide this service. If we can be of further assistance, please contact
our office.
KOECHLEIN CONSULTII\G ENGINEERS. INC.
12364 W. Alameda
LAKEWOOD
(303)s8e-1223
(303) 989-0204 FAX
SILVERTHORNE
(970) 468-6933
(970) 468-6939 FAX
grzf
Scott B. Myers, P.E.
Project Engineer
(8 copies sent)
I
KoEctErN coNsnlrrNc "*.r*Rn, rNc.
CONS ALTING GEOTECHNICAL AND MATEMALS ENGINEENA
PRELIMINARY GEOTECHNICAL INVESTIGATION
AND
GEOLOGIC HAZARD STUDIES :
PROPOSED DEVELOPMENT- 6.5 ACRE
MIDDLE CREEK VILLAGE ATVAIL
VAIL, COLORADO
Prepared for:
Odell Architects, P.C:
32065 Castle Court, Suite 150
Evergreen, CO 80439
Job No. 0l-136 August 23,2001
DENVER: 12364 llest Alameda Prkvy,, Sulte I IS, La*erwort, CO. 80228 (303) gA94223
AVON: (970) 949-6009
SILYERTHORNE: (970) 46a-69J3
'J:,ir-*
TABLE OF CONTENTS
SCOPE
EXECUTIVE SUMMARY
SITE CONDITIONS
PROPOSED DEVELOPMENT
GEOLOGIC HAZARD STUDIES
INVESTIGATION
SUBSURFACE CONDITIONS
GROTIND WATER
CONDITIONS INFLUENCING PROPOSED DEVELOPMENT
FOLTNDATIONS
FLOORS
UTILITY CONSTRUCTION
SITE WORK
General
Cut Slopes
Ei[
Retaining Walls
SITE DRAINAGE
PRELIMINARY PAVEMENT DESIGN
Prel iminary Flexihle pavement Fesign
Preliminary Rigid pavement lresign
FURTHER INVESTIGATION
LIMITATIONS
VICINITY MAP
SITE PLAN
CURRENT GEOLOGIC HAZARD STUDY
PREVIOUS GEOLOGIC HAZARD STUDIES
X OE CHLE] N CO NS ULTING EN GI N EERS, INC.
Co ns ul!ittg G eo tcc hnical E ngineers
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Appendix A
Appendix B
August 23, 2001
Job No.0l-136
August 23, 200 |
Job No.0l-136
o
KOECHLEINVONS(ILTING ENGINEENS, TNC,Consultitrg G e otcc hnical Engineers
SCOPE
This report presents the results ofa preliminary geotechnical investigation for the
proposed commercial development of 6.5 acres located in the Mountain Bell Site in Vail,
colorado. The approximate site location is shown on the vicinity Map, Fig. l. The
purpose ofthe investigation was to evaluate the subsurface conditions at the site and to
provide preliminary geotechnical recommendations for the proposed development.
This report includes descriptions of anticipated subsurface soil and ground water
conditions based on adjacent properties and our experience with similar projects, the
geotechaical conditions influencing the proposed development and recommendations for
development of the site. This report presents anticipated subsurface conditions for the
proposed development. Site specifc geotechnical investigations shottld be performedfor
individual building sites and pavement subgrade, as recommend,ed in tlzis report.
A summary of our investigation findings and conclusions is presented in the
following section.
EXECUTIVE SUMMARY
l. Based on adjacent properties and our site reconnaissance, we anticipate
that the subsurface conditions will consist of either topsoil or existing fill
underlain by alluvial soils, The alluvial soils should be characterized by
medium dense to dense, sand and gravel with cobbles and boulders. we
anticipate that the existing fill will be characterized by a loose to medium
dense, saud and gravel with cobbles.
aAugust 23, 200 |
Job No. 0l- 136
KOECHLE]N CONSULTING ENG]NEERS, INC.
Co nsulting G eo tech nic a I Engin eers
A'1,
5.
o.
2. Because Middle creek appears to have been rechannel€d to its current
location, it is possible that ground water could be encountered in isolated
underground channels throughout the proposed development. Refer to the
GROUND WATER section of this report for additional details.
Two buildings with associated arnenities and utilities are currently located
on the subject site. All existing foundations, slabs-on-grade, utiiities and
associated fill should be removed to expose the natural soils prior to
construction of the proposed development.
Based on our site reconnaissance, we anticipate that existing fill will be
encountered during construction of the subject project. we believe that
the existing fiIl will be characterized by sand and gravel with cobbles and
boulders. In our opinion, the existing fill, free of deleterious material, may
be used as structural fill for the development of the project.
In our opinion, the proposed buildings within the development may be
supported by spread footing foundation systems bearing on the natur.al
sand and gravel soils. However, because these soils are alluvial soils,
differential settlements are possible. Refer to the FoLTNDATION section
of this report for more infonnation.
In our opinion, the natural sand and gravel anticipated throughout the
development will support slab-on-grade floors. Refer to the FLOORS
section of this report for more information.
cuts up to l0 feet in height may be necessary along the access road to the
proposed parking structure. Large cut slopes, greater than 10 feet, will
need to be evaluated by a Professional Geotechnical Engineer. Refer to
the EXCAVATION section of this report for additional cut slope
recommendations.
8. Retaining walls and fills may need to be constructed along the proposed
southem parking lots. Refer to the sITE woRK section of this report for
additional details.
9. utilities will be installed for the proposed development. Because cobbles
and boulders ale anticipated throughout the development, it is our opinion
that heavy-duty excavation equipment will be required to complete
excavations within the proposed development-
7.
August 23, 200 |
Job No.0l-136
10, we anticipate that paved roads are to be constructed for the proposed
development. The paved roads may incrude both rigid and flexibre
pavements. Preliminary pavement recommendations based on anticipated' subsurface conditions are presented in the PAVEMENT DESIGN ,r"tion
ofthis report.
SITE COND]TIONS
The proposed development is to be located on 6.5 acres in the Mountain Bell Site
in Vail, Colorado. The site is bordered by the North Frontage Road West to the south and
partiaily by Mountain Bell Road to the north. The Mountain Bell Tower borders the site
to the west while open space will border the site to the east. The subject site is shown on
the Site Plan, Fig. 2. Two existing buildings with associated arnenities and utilities are
located on the subject site. The buildings are single-story buildings and are of wood
frame construction. Because of the previous development on the site, existing fill was
observed throughout the proposed development in the area of the existing buildings.
Existing fill was not observed in the area south of Mountain Bell Road. The topography
of the site consists of moderate slopes of 5 to l0 percent to steep slopes of 15 to 20
percent. The overall drainage of the site is generally to the south. Vegetation on the site
consists ofgrasses, bushes, trees and aspen trees.
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rr r"F* *, aLrr N G E NG r NE E RS, r N c.
C o ns ulting G e o le ch u icn I Engin eers
o
K OE CHLE I N CONS ULTI N G ENGINE E RS, IN C.Consulting G eo I e chnica I Engineers
PROPOSED DEVELOPMENT
The project consists of the development of 6.5 acres in the Mountain Bell Site in
vail, colorado. A preliminary site plan for the proposed deveropment was provided by
the Architect prior to our investigation. The preliminary development plan is shown on
the site Plan, Fig. 2. we understand that the proposed development may consist of
townhouse type, multi-family, commercial buildings with associated access drives and
parking lots. The buildings will be constructed south and southeast of Mountain Bell
Road' Parking areas for the proposed buildings will be constructed to the south of the
buildings and to the.north of the proposed buildings. we understand that the parking area
constructed to the north of the buildings may consist of a two-level parking structure with
the top level being at grade. we understand that the multi-family buildings will vary
from 2 to 4 stories in height and will be stepped to match the existing ground surface. By
stepping the proposed structures with the existing ground surface, we anticipate that
maximum excavations of only 10 feet in depth may be required. we anticipate that
pennanent cuts and fills will be required for construction of the proposed development.
Maximum wall loads were assumed to be those normally associated with multi-family
cornmercial construction.
August 23,2001
Job No. 0l- 136
August 23, 2001
Job No.0l-136
KOE CHLE I N CONS ULTI N G E N GINEE RS. IN C.
Co ns ul ting Geotechnical Englneers
GEOLOGIC HAZARD STUDIES
A cune.nt geologic hazard study was performed for the proposed deveropment in
order to identify any geologic hazard. that may exist on the subject site. The Geologic
Hazard,study was prepared in August of 2001 by R. J, Irish Engineering Geologist and is
presented in Appendix A.
In addition to the geologichazard study prepared by R. J. Irish, previous geologic
hazard studies for the area have been prepared. Three previously prepared geologic
hazard studies or summaries are presented in Appendix B.
INVESTIGATION
Because of the existing buildings, shrubs and trees on the subject site, access to
the site with excavation or drilling equipment is extremely difficult. In order to obtain
access to the site, an access road must be constructed through the proposed development.
Because of the inaccessibility of the site, exploratory test pits or borings were unable to
be excavated or drilled on the subject site. In order to obtain a general idea of the
subsurface conditions throughout the subject site, an engineer from our office
reconnoitered the site on August 14, 2001. The engineer observed the subsurfac
conditions exposed within cut slopes throughout the proposed development and observed
the soils on the exposed ground surface. The subsurface conditions observed during our
field reconnaissance were compared to subsurface conditions encountered during our
o
August 23, 2001
Job No. 0l-136
KOE CH LEI N CONS ULTIN G E N G I NEE RS, IN C.
Co ns ul ting Geotechnical E ngineers
investigations of nearby sites. The anticipated subsurface conditions presented in this
report are based on our site reconnaissance, information from nearby soil investigations
and our experience with similar Iocations within the Vail area. Wen access to the site
lws been coinstructed, we recomnlend that a site speci,fic investigation be perfornred. l(e
recommend that site speciJic geotechnical investigations be performed for each bttilding
at the tinte the btrildings are being designed. In acldition, we recontmend that a fnal
subgrade and peventent investigation be perfornted for the proposed access roacls and
parking areas. Ifrequested, we can perform the additional investigations
SUBSURFACE CONDITIONS
Based on our experience with nearby projects and ow site reconnaissance, we
anticiPate that the subsurface conditions will consist of either topsoil or existing fiil
underlain by alluvial soils. The alluvial soils should be characterized by medium dense to
dense, sand and gravel with cobbles and boulders. We anticipate that the existing fill will
be characterized by a loose to rnedium dense, sand and gravel with cobbles.
CROUND WATER
Because Middle Creek appears to have been rechanneled to its current location, it
is possible that ground water could be encountered in isolated underground channels
throughout the proposed development. However, ground water encountered during the
Augusi 23, 2001
Job No. 0l-136
I@ECHLE I N CONS U LT]NG EN GI NEERS, INC
Co n s ul ting G e o teclrn ical E n gin eers
development ofthe project can generally be controlled by using standard excavation and
trenching techniques. Therefore, we do not anticipate that ground water wiil adversely
affect the proposed development.
CONDITIONS INFLUENCING PROPOSED DEVELOPMENT
Construction of the development will require excavation of the near surface soils.
we anticipate that these soils will consist of the medium dense to dense, sand and gravel
with cobbles and boulders. Because cobbles and boulders are anticipated, it is our
opinion that heavy duty .construction equipment will be required to complete the
necessary excavations.
Due to inaccessibility of the site at this time, exploratory test pits or borings were
not excavated or drilled in the proposed development. The anticipated subsurface
conditions presented in this report are based on our site reconnaissance, information from
nearby soil investigations and our experience with similar locations within the Vail area.
ll/hen access to the site has been constntcted, we recommend that a site speci/ic
investigatiott be performed. lYe reconrmend that site specifc geotecltnical investigations
be performedfor each building at tl're time the buildings are being designecl. 1t addition,
we recommend that a final subgrade and pavement investigation be performed for the
praposed access roads and parking areas. lf requested, we can perform the additional
investigations
KOE CH LE I N CONS ULTING E NG INE E RS, IN C.
Co ns u I t i ttg G e otec h i ica! E n gin c ers
FOTINDATIONS
We anticipate that the materials at potential foundation elevations will consist of
either existing fill or sand and gravel with cobbles and bouiders. In our opinion, the
existing fill will not safely support foundations for structures within the proposed
development. Therefore, all existing foundations and associated fill must be removed
from the proposed development prior to construction.
We believe that the anticipated sand and gravel will safely support spread footings
for the propoged buildings within the development. However, because the anticipated
natural soils are alluvial soils it is possible that loose, silty sand pockets or layers could
be encountered beneath the proposed development. Foundations constructed on these
types of soils can experience large differential settlements, provided that no loose sand
pockets or layers are encountered beneath the proposed foundations, it is our opinion that
the anticipated sand and gravel wiil safely support spread footings for the proposed
buildings within the development. We anticipate that spread footing foundation systems
for the buildings within the proposed development may be designed with a maximum
allowable bearing pressure varying fi'om 2,500 psf to 6,000 psf. The allowable bearing
Pressure will depend on the amount of cobbles and boulders within the building envelope.
The maximum allowable bearing pressure can be better defined during the site specific
investigations.
August 23, 2001
Job No. 0l - 136
August 23,2001
iob No.0l-136
x o t e, m NCc o n s u L T r N G E N G r N E E n s, r N c.Consulting G cote ch nic ul E ngineers
FLOORS
The materials at the potential floor slab elevations may consist of topsoil, existing
fill or sand and gravel. In our opinion, the existing fill or topsoil will not safely support
slab-on-grade floors. However, the natural sand and gavel will safely support slab_on_
grade floors with a low risk of movement. The presence of loose, silty sand pockets or
Iayers will have less of an impact on slab-on-grade floors. However, if these pockets or
layers are encountered, they should be removed and replaced with properly moisture
conditioned and compacted filI.
UTILITY CONSTRUCTION
Construction of utilities below grade will require the excavation of the near
surface soils. We anticipate these soils will consist of ropsoil or existing fill underlain by
sand and gravel with cobbles and boulders. Because cobbles and boulders are
anticipated, it is our opinion that heavy-duty construction equipment will be required to
complete the necessary excavations for utilities. Sand and gravel soils without ground
water classify as Type B soils in accordance with OSHA regulations. OSI{A regulations
should be followed in anv excavation.
August 23, 2001
Job No. 01.136
o
KOE CHLEIN CO NS ULTIN G E NGI NE E RS, I N C.
Con s u lting G e otec h nical E ngine ers
SITE WORK
General
construction of buildings and access roads may require cuts and fills to
obtain the desired grades. Any cut or fill slopes greater than 10 feet in height should
be evaluated by a Professional Geotechnical Engineer. Retaining wall sysrems may
be required in some areas to reduce the extent of cuts and fills. We anticipate that
on-site sand and gravel may be used in fill areas. proper moisture treating of the
natural soils will be required prior to or during placement and compaction of fill.
surface drainage should be carefully evaluated during design and
construction of the proposed development. Slopes around retaining walls and
buildings should be graded so that positive drainage is maintained away from these
structures.
Cut Slopes
Any cuts, which are greater than l0 feet in height, should be evaluated on an
individual basis. If requested, we can perform the evaluation of these slopes. In
general, slopes of 2: I (horizontal to vertical) up to l0 feet in height should be stable
on the subject site, if properly drained. surface drainage should be carefuily
designed to divert surface water away from the slopes. All cut slopes should be
vegetated as soon as possible after construction.
10
OAugust 23,2001
Job No. 0l- 13 6
KOECHLEIN CONS I]LTING ENGINEERS, INC
Co ns ulting G e o le chni c a! E n gine ers
Eiu
Fills over l0 feet may be required for this developrnent. Any fill slope
greater than 10 feet in height should be evaiuated on an individual basis. If
requested, we can perform the evaluation of these slopes. in g€neral, fill slopes of
2:l (horizontal to vertical) up to l0 feet in height should be stable, if properly
drained. Fill may consist of anticipated on-site sand and gravel free of deleterious
materials or an approved imported granular fill. No cobbles or boulders larger than
12 inches should be placed in fill areas. Fill areas should be srripped of all
vegetation, topsoil, existing foundations and existing fill. The resulting surface
should be scarified and properly moisture conditioned and compacted. Fill should be
placed in thin loose lifts, moisture conditioned to within 2 percent of optimum
moisture content and compacted. The degree of compaction will vary depending on
the use of the fill.
Retaining Walls
Retaining walls may be needed to reduce the magnitude of cuts or fills for
development of this site. The types of walls that are possible on this site are
conventionai concrete retaining walls, MSE (mechanically stabilized earth) walls,
timber crib walls and boulder retaining walls. The retaining walls need to be
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August 23, 2001
Job No. 0l -l 36
o
KOE CH LE I N C ONS ULT] N G E N G I NEENS, ] NC,Consulting G eo tech ical Engineers
designed to resist lateral earth pressures. Lateral earth pressures depend on the type
of backfill, slope of ground surface behind the retaining wall, height of retaining
wall, and type of retaining wall. we can provide the design, or the geotechnical
design criteria, for the retaining walls once the specific site conditions and proposed
construction are finalized.
SITE DRAINAGE
Surface drainage should be carefully evaluated during design and construction of
the development. overall drainage of the site is generaily down to the south.
Construction areas should be carefully sloped to reduce the possibility of infiltration of
surface water into the cut and fill slopes. In addition, slopes around retaining walls and
buildings should be graded so that positive drainage is maintained away from these
structures at all times. The surface drainage of the development should be evaluated prior
to establishing final grades.
PRELIMINARY PAVEMENT DESIGN
It is anticipated that the roads and parking areas within the development will be
paved' Based on the subsurface conditions, it is our opinion that flexible asphalt and
rigid concrete pavements are possible. It has been generally found that concrete
Pavements tend to perform better than an asphalt and base course pavement. The initial
t2
August 23, 2001
Job No. 0l- 136
xoe cuul}o us ulrr NG ENG rNE Ens, rNc.
Co ns ultittg G eo tec h nical E ngin e ers
costs are generally.higher for concrete pavements, however, the long term maintenance
costs are less.
We anticipate that both flexible pavement and rigid pavement could be used at
this site. we recommend that rigid pavement be used in high traffic areas such as
entrances or where heavy vehicles (trash trucks, delivery trucks, etc.) turn or maneuver.
Two preliminary pavement sections based on high volume traffic and low volume traffic
are presented for the flexible pavements. High volume traffic areas are considered to be
access roads or fire lanes. Low volume traffic areas are considered to be parking areas.
The following sections present design assumptions and preliminary flexible and rigid
pavement sections. In order to properly design the required pavement sections, we
recommend when fnal stbgrade elevations have been achieved, a final subgrad,e and
' paventent investigation be pedormed.
Preliminary Flexible Pavement Fesign
The design of the preliminary flexible pavement was based upon an
Equivalent Daily Load Application (EDLA), anticipated soil properties and the
colorado Department of rransportation pavement design manual. preliminary
design calculations were based on assumed engineering soil characteristics. Based
visual observations ofthe surface soils and review ofqoil investigations in the area,
we anticipate that the subgrade soils will classifu as A-l-b soils, as defined by the
l3
August 23, 2001
Job No. 01.13 6
KOECHLEIN CONSULTING ENGINEERS, INC.
Consulting Geotechuical Engineers
AASHTO classification system. The preliminary pavement designs are based on the
subgrade soils having an AASHTO classification of A-l-b. This soil type will
generally have a Hveem stabilometer R-value ranging from 50 to 75. The R-value
was estimated fi'om the AASHTO classification of the soil. Because the R-value of
the natural soil was assumed to be 50 to 75, the use of roadbase will not reduce the
pavement thickness. However, roadbase rnay be required to establish a finished
grade prior to paving. The EDLA for high volume traffic for residential
developments lvas assumed to range from r0 to 20. The EDLA for low voiume
traffic was assumed to range from 3 to 5. Two flexible pavement designs, based on
the above rnethod, are shown below in Table A. These flexible pavement designs
include two full depth asphalt pavements.
A preliminary rigid pavernent section was designed using the same values of
Table A
Summary of Preliminary Flexible Pavement Altematives
Traffic Volume Fuil-Depth Asphalt (inches)
Parking Areas 3.0" to 4.0"
Access Roads 4.0" to 5.0"
Note:
Because the R-value of the natural soil was assumed to be 50 to 75, the
will not reduce the thickness of pavement, However, roadbase may
establish a finished grade prior to paving.
use of roadbase
required to
L4
August 23, 2001
Job No.0l-136
xor ut n froxs aLnNG EN Gr NEERS, rN cCottsultiag G e ote ch nica! Engineers
the EDLA and R-value as those used in the high volume traffic flexible pavement
design. The colorado Department of rransportation pavement design manual, along
with the above mentioned design values, were used to determine a rigid pavement
section. The preliminary rigid pavement design resulted in a design section of 4.0 to
5.0 inches ofconcrete.
FURTHER INVESTIGATION
Due to inaccessibility of the site at the time of thiS investigation, exploratory test
pits or borings were not excavated or drilled in the proposed development. The
anticipated subsurface conditions presented in this report are based on our site
reconnaissance, information from nearby soil investigations and our experience with
similar locations within the Vail area. V|hen access to the site has been constntcted, we
recommend that a site specific investigation be performed. We recommend that site
specific geotechnical investigations be performed for each buitcting at the time the
buildings are being designed. In addition, we recommend that a final sttbgrade and
pavement investigation be performed for the proposed accejs roads and parking areas.
Ifrequested, we can perform the additionai investigations
LIMITATIONS
The anticipated subsurface conditions presented in this report are based on our site
l5
August 23, 2001
Job No. 0l - 136
KOE CHLE]N C ONS ULT] NG EN G] NEERS, T N C.Consulting Geotcchnical Eigineers
reconnaissance, information from nearby soil investigations and our experience with
similar locations within the Vaii area. Variations in the subsurface conditions from those
assurned in this investigation are possible. Any variations that exist beneath the
development generally become evident during site specific investigations. This report
presents the anticipated general subsurface conditions and guidelines for planning and
design purpos es. Ilherz access to the site has been constntctecl, we recomnrend that a site
speci/ic investigation be perforntecl. We recomntend tlnt site specific geotechnical
investigatiotts be performed for each buitding at the tinre the bttildings are being
designed. In addilion, we recornmend that a final sttbgracle ancl pavement investigation
be performed for the propos ed access roads and. parking areas.
l6
August 23, 2001
Job No. 0l-136
xo n curctQo Ns ulrrN o E NGINE Ens, r N cConsulting Geotechnical Engtnccrt
We appreciate the opportunity to provide this service. If we
assistance in discussing the contents of this report or in analyses
development from a geotechnical aspeot, please contact our office.
KOECHLEIN CONSULTING ENGINEERS, INC.
Project Engineer
Reviewed by:
can be
of the
of further
proposed
A;//; V. H",,/,h
William N. Houlette, P.E.
Senior Engineer
(8 copies sent)
atrra+ !Ir| E jC
b,*il#N
Scott B.'Myers, P.E.
17
,af rar,n, coNsuLaNG ENGTNEERS, lNc.Consulfi ng Geotechnlcal Engineeis
t
T
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ilol ?o scALE
VICINITY MAP
JOB NO. 01-,t36 FIG. 1
August 23,2001
Job No. 0l- 136
K OECHLEIN C O NS ULTI NG EN GI N E E RS, I N C,Consulting Geotechnical Engineers
APPENDIXA
CURRENT GEOLOGIC HAZARD STUDY
7101 West Yal6
Avenue, No. 601
Denver. Colorado 80227
JUJ-Ytto-OO30
R. J. lrish
Consulting Engineering
Geologist, lnc.
August 16, 2001
KOECHLEIN CONSULTING ENGINEERS
12364 West Alameda ParkwaY
Suite 115
Lakewood, CO 80228
Re: Engr. Geologic HazardStudy, Middle Creek Village at Vdil Development, Vail, Colorado.
Job No. 564
Gentlemen:
In response to your call, we have geologically reconnoitered the site in Vail, Colorado,
planned for the Middle Creek Village at Vail Development, which is to incorporate affordable,
multi-family housing and appurtenant facilities on about 8 acres. This irregularly shaped tract is
located in i part of the S1/2 SEl/4 Sec. 6, T. 5. S., R. 80 W., Eagle Coulty, Colorado, north of
the north service road immediately west of the Old Vail/lnterstate Highway l-70 exit, and
adjacent to an existing Mountain Bell telephone tower (Fig. 1). lt lies at the foot of the northern
slope of the west-trending Gore Creek Valley where that slope is breached by a canyon section
of ine UidOte Creek Valley. The ground surface across the property slopes generally southward
at about 10:1 (horiz. to vert.) from Elev. 8290 feet to Elev. 8220teet. The western two-thirds of
the property is forested with aspen and scattered evergreens. Some of the latter are quite
large. The eastern third of this tract is covered by sagebrush and other brush types.
Our objective has been two-fold: 1.) to generally delineate geologic conditions across the
property and immediate vicinity, and to evaluate the probable influences those conditions will
haue on the planned construction, with special reference to geologic hazards, such as
landslides. debris flows, and rock falls, that could impede the development of the property; and'
2.) conversely, to assess the probable impact of the planned construction on the natural
geologic cond-iiions. An ancillary goal has been to suggest me'ans to ameliorate the risk posed
by any geologic hazards that may be discovered.
During the course of our work we have stereoscopically examined aerial photographs of th_e
property a-nd vicinity, and have geologically reconnoitered the site and vicinity (on August 15,
2OCjt).
-Our
interpretations of geologic conditions across the site and vicinity are illustrated by a
geologic map, Figure 1 (attached).
We conclude that the tract to be occupied by the Middle Creek Village at Vail Development
is subject to debris flows periodically emanating from the valley of Mill Creek, as well as rock
falls fiom the lower part of the adjicent sector of the steeply inclined, nodhern slope of the
Eagle Creek Valley. We assess the debris flow risk to be high, and the rock fall hazard to be
me-dium. The former risk, we believe, could be substantially reduced one or more of several
alternative mitigating measures. These could be selected and designed when the final plans
for the project ire dlveloped. The latter risk could be reduced materially by hand-dislodging
boulders, ittowing them to roll down the hill and onto the floor of the debris fan before buildings
are constructed on this site.
Consultanl lo DesigneIs, Contractors, Planners
R. J. lrish
Consulting Engineering
Geologist, Inc,
Site Geologic Conditions
The Gore Creek Valley has been eroded into the interbedded sandstones, siltstones,
shales and limestones of the Pennsylvanian-age (about 325 to 286 million years ago) Minturn
Formation by both streams and glaciers. Glaciers repeatedly occupied the valley of Gore Creek
during the lce Age, which began about 2 million years ago, and terminated only about 8,000
years ago in this part of the Rocky Mountains. The glaciers deposited morainal soils across the
lower slopes of the valley and both glacial outwash and morainal soils across the valley floor,
aggrading it by as much as 100 feet or more. The upper reach of the Mill Creek Valley was
occupied repeatedly by glaciers also, as evidenced my multiple cirques at the head of the
Valley, and a U-shaped transverse topographic profile that extends down valley to about the
Elev. 9800-foot contour. That contour crosses the floor of the canyon about 2 miles upstream
from the junction of that valley with the Gore Creek Valley.
The morainal soils generally are an heterogeneous, medium dense to dense, mixture of
sands, gravels, cobbles, and scattered boulders in a silt matrix. Mostly the soils are granitic
rock debris, but include sandstone, siltstone,-and limestone debris as well. The permeability of
this soil typically is low, on the order of 10'" cm./sec., but may include lenses of much more
permeable sands and gravels. The soils deposited by glacial meltwaters (the glacial outwash
deposits) typically are interbedded, medium dense to dense sands and sandy gravels that
commonly are cobbley and bouldery. These typically are quite permeable, on the order of
!0'2 cm./sec. to 104' cm. sec. The morainal soils blanketing the toe of the northern slope of the
Eagle Valley adjacent to this property are estimated to range from about 5 feet to 20 feet thick.
Since the end of the lce Age, fast-moving floods charged with soil and rock debris
(essentially mud flows) repeatedly have coursed down the Middle Creek Valley, and have
deposited their bed loads out across the floor of the Gore Creek Valley at the confluence of
those valleys where the Middle Creek Village at Vail Project is to be sited. Those flows are
referred to as debris flows. Moreover, many "normal" floods have carried soil and rock debris
out onto the floor of the Eagle Valley at this confluence, as well.
In consequence, a debris/alluvial fan has been constructed at the mouth of the Mill Creek
Valley. lt is about 2000 feet long along its toe, and about 1200 feet wide from its apex in a
canyon section of that valiey to its toe adjacent to Gore Creek. lt is expected to be formed of
torrentially interbedded loose to dense, sands, gravels, cobbles and boulders in a silty matrix.
The soils, granitic metamorphic rock, sandstone, and siltstone debris, are expected to both
overlie and interlense with the morainal, alluvial and glacial outwash soils underlying the floor of
the Gore Valley. These fan soils probably range to several tens of feet thick across the center
of the fan.
The permeability of these debris/alluvial fan soils probabJy ranges widely, due to a widely
ranging "iines" content, from an estimated 10'3 cm./sec. to 10'5 cm. sec. The ground water table
in these soils probable lies about 15 feet below the ground surface at the southern edge of the
property, but probably is much deeper in the head area of the fan.
The interbedded, flne grained and fine to coarse grained sandstones, siltstones, shales and
microcrystalline to very fine grained limestones of the Minturn Formation crop out sporadically
across the foot of the northern slope of the Gore Creek Valley adjacent to, and within the
R. J. lrish
Consulting Engineering
Geologist, Inc.
canyon section of Mill Creek Valley. These are relatively weil indurated, strong, hard rocks.
Their unconfined compressive strengths, we estimate, range from about 10,000 psi to 15,000
psi for the sandstones and siltstones, 25,000 psi to 30,000 psi for the limestones, and 5,000 psi
to 8,000 psi for the shales. The shales are only poorly fissile. These strata are thin to thick
bedded, and their near-vertically dipping joints typically are several feet to 10 feet apart. The
beds strike north-northwestward and dip about 25o west-southwestward, thus nearly parallel to
the contours of the valley slope, rather than out of the slope. These rocks, including the
sandstones, have very little, if any, intergranular permeability, but ground water undoubtedly
flows along some of the joint olanes.
No faults are known to us to disrupt the bedrock strata underlying the project area, but
several have been reported in the vicinity. These are believed to be inactive.
Assessment of Geologic Hazards
Debris flowage is the principal geologic hazard attendant to the Middle Creek Village at Vail
site. In fact, this site effectively spans the upper sector (i. e., uphiil sector) of the debris/alluvial
fan, thus could be flooded if a debris flow or "normal" flood should leap the banks.of the channel
of Middle Creek at the apex of the fan at the mouth of that valley. A debris fan is deposited by
multiple debris flows, which are high-energy flows of surface water charged with soil and rock
debris. The flow is debouched from a steep-floored ravine onto the floor of a main valley, where
its bed load is deposited to form part of a fan-shaped deposit, the debris fan. Typically a debris
flow is initiated by localized, high intensity rainfall that quickly washes loose soil and rock from
the catchment area of a ravine or canyon. This debris is carried esserltially as a mud slurry.
Commonly the debris flows and the companion flood flows abandon the channel occupied by
the creek on a debris/alluvial fan, spread out across the fan surface, and even create new
channels during some events. These flows, both debris and "normal'flood flows, can seriously
damage or destroy buildings and their infrastructure, as well as harm the occupants of those
buildings.
We assess the risk of debris flows from the Middle Creek Valley to be highr during the
lifetime of the project, although we cannot predict their average recurrence time interval'. That
recurrence time interval is likely to be quite erratic. Their volumes could range from small to
quite large because the drainage area of Middle Creek incorporates about 6 to 7 square miles.
The high risk posed by debris flows, as well as by "normal" floods, could be reduced by one
or a combination of several mitigating measures. The designs for these could be incorporated
in your final development plans.
Additionally, debris fan soils tend to be subject to differential settlement when wetted, but
the potential impact of this can be moderated by foundation engineering practices well within the
state-of-the-geotechnical eng ineering practice.
t Our assessment of risk is couched in qualitative, empirically-derived terms (high, medium, and low).
The state-of-the-geologic-art does not permit a rational quantitative analysis.
2 An experienced engineering hydrologist should evaluate the risk of "normal" flooding'
R. J. lrish
Consulting Engineering
Geologist, Inc.
Large and small boulders of granitic rock and limestone are scattered across the steeply
inclined surface of the foot of the valley slope overlooking the easlern half of the project area.
Most of these appear to be embedded in the morainal soils that blanket that area, but a few
appear to be perched on top of that ground. Both could be dislodged by slopewash erosion,
thus could tumble down into the project area.
We consider the risk of such an event to be medium during the lifetime of the project. That
risk could be reduced substantially, we suggest, by dislodging the exposed boulders by hand,
utilizing a steel bar, and allowing them to fall onto the surface of the debris fan down slope
before any buildings are constructed on this tract. The area to be serviced extends from the
northern side of the fan surface up to a terraced section of the slope about 150 feet in elevation
above the fan surface, and from the eastern side of the property to the eastern side of the
mouth of the Middle Creek Valley,
Boulders perched on, and partly embedded in the morainal soils across the toe of the Eagle
Valley slope west of the mouth of the Mill Creek Valley may be dislodged naturally from time to
time and roll down the slope, but they should not travel into the western section of the planned
development area. Instead, they are likely to be trapped in the channel of the creek, which
traverses along the toe of that slope. Any that may skip over that channel, however, should be
trapped by the dense brush and aspen west of the Mountain Bell tower, or impeded by the
tower buildings.
The soils and rock underlying the Eagle Valley slope in the vicinity of the planned
development site appear to be relatively stable. We observed no landslides there or ground
surface cracks that might presage landsliding. The granular soils of the shallow sloped
debris/alluvial fan do not evidence instability or incipient instability.
The 40-mile long Gore Fault, a major mountain-bounding structure on the westem side of
the Gore Range, lies about 4 miles east of the project site (at its closest approach); the 50-mile
long Mosquito Fault lies about 12 miles to the west; and the Z5-mile long Sawatch Fault
terminates (at its northern end) about 24 miles south of the site. Some seismologists consider
these 3 faults to be potentially activel but most seismologists, nonetheless, considerthe risk of a
strong earthquake generated by those faults or any other fault within a hundred miles of the
project site to be low to insignificant during the next 1 00 to 200 years. This is not to say that this
part of Colorado is seismically quiescent, but the earthquakes generated by the reactivation of
faults in this region should have small magnitudes. Earthquake intensities of V to Vl, with peak
accelerations of 0.059, we conclude, are unlikely to be exceeded at this site during the life of the
proJect.
So long as the construction of the planned buildings and appurtenant facilities does not
materially change the existing ground conditions of the natural soils and/or bedrock, slope
stability should not be impaired. lf cuts or fills in excess of 5 feet high are needed, however,
they should be designed by a geotechnical engineer experienced in that work. Ponding of water
on the debris/alluvial fan slope, of course, should be avoided because seepage water from a
pond could build pore water pressure in the debris fan soils, thus could trigger ground
movement.
o
R. J. lrish
Consulting Engineering
Geologist, Inc.
Otherwise, the construction as planned should not increase the geology-related hazard to
other property or structures, or to public buildings, roads, streets, rights-of-way, easements,
utilities, or facilities.
We have appreciated the opportunity to work with you on this project. lf you have any
questions, please call.
Robt. James lrish, P. G.
Consulting Engineering Geologist
Yours truly,
August 23,2001
JobNo.0l-l36 KOECHLEIN CONS ULTING ENGINEERS, ]NC.Consulting Ceotechnical Engineers
APPENDIXB
PREVIOUS GEOLOGIC HAZARD STUDIES
o6t lrt lvoL 6rizq 36367562 o* o*t:.to
DEBRIS ELO1Y Ai,TD ROCITFALL IIAZATTD ANALYSIS
.(
N !ELL' SiTEt..
vafL,.coLonADO
Prcpared By
Arthur L Mcan, pE, Iac.
. Ounnlson,'Colorado
Novcraber, 199?
A4- l.t. a"t--t'p'wt- ryLoY
PAGE
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Ucr/ iJ,r.lUql U:; J9 ur)rLL ARCHTTEcTo rAuL gt
1 SUMM.ARY AI{D RECOMMENDATIONS
The followirtg sunrnarlzcs lhc findings of this study an<j providcs reconrmcndations, Additionsldctail is given in Scctjons 2 - 4 of, thc rcport.
ROCICFALL
K0cl(lall js not a potcntial hazard.to thc proposcct clcvclopmcnt as shorvn on a conceptual sjtcplan prcparcd on3-L9'92 by AJpinc Intcrnaiionol. This conclusion;s Uas.ct on rhc follorvingobservation:;:
c. Ilockfall sourcc arcas clo not c.tist abovc tfic easrern portion of the proposcddevclopmcnt (the ,'East parccl");
b' Although rockfail may occur abovc thc "west prrccl,, it rvirl consist ofnroclcr;rrc-,sizcd, rarc rocklall *,cnts rhar rvili not rcoch rte proposcJ b,ril,ii;g.-'
DEgRIS F]-OWS
Dcbris flos,s rvil[ not affcct tlc East parccl bul
arc bascd on thc follorving obscrvatibns;
a. ih" Easr Farccl is nor jn linc rvith dcbris florfsl---:----
b. Tbe ll'cst parccl js locatcd on an aliuvjal fan produccd by dcbris_florvdep.sition as cvicjcnc-cd b1,r) granitc bourders r -,r f;;;;;i,iii," surrac., z;dcpnsitional.lobcs 5 fcct high, ind 3) a large sourcs arca;
c, Jhc florvs may.bc dccp as rhcy arc channcli:ccr tluougr the canl,on crodcd intothc bcdrock dircctly above thc site.
RECOIvfN,0d.IDATIONS
Thc foilorving rccommcntJslion altcrnotivcs alc bascd on thc conclusions outlined aboyc and onmy cxpcricncc rvirh rhc dcbris-florv proccss in vair and ar ori,"iiocatlfos,
"
a. r\r,oirJ constructjon on rhc Wcst porcct; or
b' Dcsign structurcs on thc wcst parccl for impact and depositionar forces frorndcbl'is flows; or
c' Proc:etJ rvith thc cicvcropmenf prans as shorvn on thc 3-19-92 cnncenrri:rstudy, build no mitigation, ancJ acccpt thc risk of florvs *;,r., ..tu- ;:rri.;app'oxinrrtcly 300.- 1000 ycars that wourd damage strucruics.:-'-'..'".".....j..':.'.
| :'t "'
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*"n''tl HAGT.v'q
Qoor
US West Wireless LLC
1191 E. Cotfax Sreet, Suite 314*!nver. Colorudo g0220
Attn: Mr. JEson Litle
Re: fSlloeic Hr-ird Invagtgaflon {Rev,sion ,l
.Y!,.W^*l Cetrutar Sire, MTN_1 0sVail, Colorsdo
Torracon projoct No. 259g514g
jiLrranoil
ig,;#;#*ffiffi"
D€ar [4r. Litile,
As feguested, Tenaco
roferenced sile. lr is .r:, ll-_t:tl]cted a gebbgic harafd tnvesrigation for the abover,,,. . ,",,ur "iJ;il:ffT'#'ff i:]j:::li.',*.y: *".' l"',li"n *o to'*. .," ro
l,.:;":',gil: n oq,,pin' .r';;il; ffi ;:'h:i:T:l [lY;.Hl i1*:ili",i,ff
On June 11, iggg
rcconnaissarlce .nd ,'un::.-:Ln-ine3rino
geobgist from Temacon performed a site
site is loceted in tt," ,or,"*d
rhe city cf Veil,c debris. flo,v and ,o.i *u I...rJ il"*. *"*," nonr, iia. ;il;,","TTi:,+H';i".il,4'*::::lr :'s*;, .""n" ,o *"u, ""creek ftows out of a n*o* ".""^^.;_j::::T:
moo.cftltely to steepry ro the south, Arne c,eer< uet; ffiTjT::i$.J ffff [lTiT,ffi,"'^Ttrg,.",,Ii#:located easl .'f the propose_d f,cirfy, The .r'.ilJ,is *st facilily is a murti_story concrelestructure wfth an existing tower. A concrete *"L, ;lr.o,* 3wa,e wa' ncred around thenonn, east, and wesl sltes of the .rlrtins h.liloing.
ff ff":filX,'l]:i:tl-(BurrLake) ase aruviarran deposits, rh€ deposits are
clasts rn subangutar to ,llliT^:*"|' cobbles, and bouiders. *. niuo=,'oior*,'
odentation. The bedrock
lorounded and do not appear to exhibit a o*,i"."io,lorn *Formatton. The Min!.rm ':t:1t]1i|e, Quatemar/ deposits is ths or"*,"..",
"r,".cangtomerate, ,r,.u, *iri,'1flneris:d
of red to Fink jnterbeddea unit, oJ'.-"norron".
no rth and
"p. "oo*'". :t T: g t"J*i"rff n,ol? ,f:ilfr **#f ffi:.TrTTff ffi ilil:':,:"':j1"T"*;;;;;';J'ff westracir'ynearthemoutho.he
The city of Vajl debris fror
-situateiuotween;;;l
and rock fall hrzarc map.s.show the us west sits beingg::a;;;;;'il'fi ?l!il:iiil:Hlm'f ;f,r*1.'";,::teqracont to rho easr "td.,:t the sne] ,*lu"*'the hezard maps and our s er€connabsance'
' ic our opinion the or"*.;;;;';ir is not tocareo wirhin either of the
'-''ffi'#1l*'i'*lt"*'"itH.'rH"m**.1sr:,rffi f#"T**,Ou r,Cnia.r..|I|! at.a.'r{J
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Tne analyses and recommendatinn. r_ ..,-perbnned "i,i.l"*,rrl"lT,::rn lhi, '.porr .*
da.,r.,.h^r--, , Ine scofc of seruicrn ,^, r31o-1,u*n vfEual obseruatronsgeotachnic€l .".ori."or,,I: *f of seMcsc ror f.. -r-" r'eucr ooseruatjons
procedures whici rnay o. r1T-'1'.f
t"o.1tll
"tl";a:": Prdecl doee not inqud€ anv
:'".i:::TT:boui*rc,",Tffi fl
jl.1;i*'3',1ffii":il;f,ff;,T'fi:T.:l
seotechnicat toils :nuesriffiil;lr:ffft or the projed, i ir- *;ee,il ;ff ;"ilj
,*FISrf ARcHrrEcro
with you on this prolect. lf vor ru46s ;d' .;"*,'I,i#i""trt H:f T
4'r: i4 3r138747t62aufr l:r:{{ rr^r
lld{
u4ii{PAGE AE
Booo
lwo rock fall hezard zooes u,fiirh
identifies tt''it htt;;;:t':i:t arc aqacenl to the
opinion rhar rhe enrife ,,*,,::,:3tot t t.-*'il;;-sile' rhe debris flow harard rlap
€re rocared couJd be i".uJ3
tan upon whtci til;;', "'P ccurs€ of the sfream. lt ls our
rs rncised inta irs channe,'1I--
ouotrs now il;;|F .dhtv snd th€ Proposod additlon
f ilti*i:;$n#:nngi*n**$.:"'lmil,#ffir:i H.i"l,,. "I,',j:
Y::erin
g o r ;'#;' :-:3T"errns
p;pl;;, i oo",
,ncr€ase he geologLtc nr..ll rrtat *'u .onrrrrJin irfl*+"tt sre warranted ror he
georogrc haards such as ,1-1]:."tn"t
t**rJ'oi'otc 15 by 16 foot additlon witr not
ooaervaoourjnih;:il;#'j:*,Jil;';:fl3ffi:.n:X'ilT,fl ;?;
l1-11reciae rhe opporruify to w(
:l:emino thts reporr, or if we maycontact us.
Sincersly,
TERRACON
Copies to; Addressee (Z)
Rcyieured:
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Oaa l;'uq+,
kd,;X
Oflice Manager
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3U3b /E 21.62o ODELL ARCHIT rHuc rjb
Nlcholas Lampiris, ph.D.
. @NgutlNc oeolocrst
0799 VA L!E/ HOao
cAfi BON oALE,.COLORADO El S23
1900) egLLo (a{ Houngl
f'li\, 28, 1?6'()
l.lol I y Ftr.rthnr..f or.d , Di rector
A[tC g-noot
1.?(, t!, Frontage Rodd
Vai l, C0. 3169g
Rli: Flsckf al I Evaluiatt on
Dt=ar Ms. Ruther f or d:
i
I hsve vlsited the Eite of your Echoc,I jrnd noted the .$re6 .f orplanned expeusi on orr the north side o.f Ure uor,tistlnqlttructLrre. The propcsed adcii tie' i s shoh,ll under separatEfcclver.
I h e.',,e aI co noted the poE: ti on of the sctrpnl. w j th r-aeoect totlle gei:loqi r: roc['Fa]. I hrrrard mapplng that I prodLrcEir {c,r lhs:,'l'or.rrr o.t Vai I in lp84. The gchool I g gfrovrn wl thin thr:cuteqrory. o.f. "rnoderEtc r.och.f clI ha:iard.,' bqt En Cetai ledi nsprecti'on i balieve thar thr rtne ehould he srnendetj tn sirowth;rl your ::,i:hocl and its pr.o6:osud aclditlon rirrei not wi thi.n xroctlf al l, ha:ard =onc. I surbrntttsd an qver.Lriy io lhe Lec{rningTree school in 19€ir whtch shawed a nBr{ we6c Doundery crf the,nspFed haaard =ane +Ltrther to the east and !.heref ore notincluding yciur school . I do, however, ijnd thet there is'6dilbri c f low harard .to th! Fchool
This cnn, and shbuld, bc rnitiEaterJ ar wc di scus:red in Ltra{ i el, d I ast weul'e .by el*tcndt ng and pcrhsFs acldi ng t.o rhFerrirtrhg lowr lineqr rocky hi tlside, nor-thnias,E of the gr:rroor r*ll:h llo Jorrnad by a previous debrig florq decados ago. Theni.t!qr.rti c,n crn be o!(tended to a protnt par.t way t,: th,l s:c.erFhi llside be),ond the school to provi,Je protnction f.o th6.t't:.1,i'.ti ng br.ri I d!ng rnd thc proFosed ACdi ti on, or i t c;,rr bo
err tended .etl I .lha way !o. the steap h j I I r,i rle n lherqbypnnbecting thc pleygreuhd erers nsr!hcle$t r:,f the s,fihrtoi etswel l ' Thc conf i gur*ti on of the berm i n ei the.r. case !l.rour d beestabl t she.rJ itl the f Ield !n Concort w!th your ar.cfritect, ot.ircan bc' €Hp.rcted to ha*E a f tnl gherr net'vEr.rical relie+ on iiswEst F.i dn o,f abourt E to t tJ {eet.
ODELL ARCHITECT
(:
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"oorrtr,rggt
UY: 'lq 3S3E 7352
In the forner.caic, ctEbrts woul d be {or:ced t6 *low erosnd theEchr-lo.l and thE proportd Addition te. bc.rth $idcsi. !n ,th.. t'i|ltirqi.sri'r 6Il the debrl I poul O bc {orcecr to {low Q:trvrren tha*lrtrJect F'DIrsrty aDd U'lC rvlt. BeIr instarliErDn !i: thfi hrecr.'They are Orpbably $ware o{ the pot€nttal ha?trr,C Uo*.*roo itrr1,.Irs,re br.ri !.t i cgncrei:e rJl tr,:h i"o-J*ii nctisn 6yrte,n to p/.ot6ctthE'lr Frc,pert),r brtt I am not .on.rina*u tha! .wh.r.r- the.,, hn\r$*.rirrstrur.:teC r.rr.1 I p.',":li. 3leCuaic.prcta.eti,r,. ir.l t,r,o-ilvsnt 6.,rs lBr'ge dc!):.iB flFd }nanating +rotn'tho gully tc the nortr,.
'fhE trro ch€ice6 f or. oit{grt,ing debr.ti .Fl crr,r haEar.cj at your-site that t hrvr drtcriAeo wi,ff "ot rncretisE th6 nara!-r, toothBr propcrty or etruclurarr or to qr.r!f f c buI!tJingr, ,.i gllLs_o{-weyt roadsr' Strc|ltsr' naserrrents, .,tt t t L,rss or +6ai rl treE Orother pr-opertles of iny kinct. f i'tfrerc ure .irrtherqurstlorrs, pleese do not hes!tate to contast ,ng.
Ei ncerel y,n'l l .-)Y\IA /-*u;
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Environmental lmpact Report
Planning and Environmental Commission
March 11 , 2002
STEWART ONMEMAI CONSUTIAATIS,'NC.
Consultin g Engineers and Scientists
Envi ron mental I mpact Report
for the proposed
Middle Creek Village'
Vail, Colorado
Prepared by:
Sfewart Environmental Consultants, lnc.
Con sulting Engineers and Scl'enfr.sts
Fort Collins, Colorado
August 2001
o
EATWR
Ofilcs & Laboretorf
3801 Automation Way, Sulte 2d)
Fort Collins, Colorado 8Gi25
(970) 226-ss00
FAX (970) 226-4946
stewart@wsbaccass.not
I
TABLE OF CONTENTS
page
1
1il. PROJECT BACKGROUND AND DESCR|PT|ON................. ...................... 2
IV. SITE DESCRIPTION AND ENVIRONMENTAL INVENTORY ..,.........,.,.....3
v. ENVTRONMENTAL CONCERNS AND RECOMMENDATTONS .............. ...........................5
vr. oTHER ENVTRONMENTAL COND|TIONS.................. .............................. 7
A. Land Acquisitions and Displacements................ .............7
B. Land Use and 2onin9............. .................. 7
H. Navigable Watenrvays and Coastal 2ones............. .......... I
J. Energy Requirements and Potential for Conservation ... . . . . . .. .. .. . .l. . . .. . .. ... . . . ... . . . . . .. : .... .. . ... . 8
M. Community Disrup1ion............................... .................... 10
N. Secondary Development ....................... 11
o. AGENCIES AND PERSONS CONSULTED .................... .................... 11
vilr. AssEssoR QUALtFtcATroNs .............. ....................... 14
FIGURES
1. Location Map
2. Aerial Photo
3. Site Map
4. Photographs
APPENDICES
A. Eagle County List
I. INTRODUCTION
Odell Architects, PC retained Stewart Environmental Consultants Inc. to perform an
Environmental lmpact Assessment of the proposed Middle Creek Village development. The
property is located adjacent to the Mountain Bell facility, directly north across Interstate 70 from
Vail Village. The proposed project consists of multi-family housing constructed on a 6.5-acre
site owned by the Town of Vail. The purpose of the project is to provide affordable housing for
people cunently employed in Vail, who are presently living in or near the community. The
project owner is coughlin and company, 140 East 19rn Ave., suite 700, Denver, colorado
80203-1035.
The site location is depicted on Figures 1 through 3. Photographs of the site are provided as
Figure 4.
II. PURPOSE
The purpose of performing the Environmental lmpact Assessment is to achieve the following
objectives:
A. Availability of Information: To ensure that complete information on the environmental
effects of the proposed project is available to the Town Council, the Planning and '
Environmental Commission, and the general public.
B. Environmental Protection A Criterion: To ensure that long-term protection of the
environment is a guiding criterion in project planning, and that land use and development
decisions, both public and private, take into account the relative merits of possible
alternative actions.
C. Review and Evaluation Procedure: To provide procedures for local review and
evaluation of the environmental effects of proposed projects prior to granting of permits
or other authorizations for commencement of devel.opment.
D. Avoid Geologic Hazard Areas: To ensure that the buildings are not constructed in
geologic hazard areas, by way of illustration, flood plains, avalanche paths, rocpall
areas, where such hazard cannot practically be mitigated to the satisfaction of the
Planning and Environmental Commission and the Town Council.
E. Protect Water Quality: To ensure that the quality of surface water and ground water
within the Town of Vail will be protected from adverse impacts and/or degradation due to
construction activities. [Ord. 37 (1980) 10:Ord. 19 (1976) 14: Ord.8 (1973) 16.100]
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Middle Creek Village
Vail. Colorado
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III. PROJECT BACKGROUND AND DESCRIPTION
Site Concept
The initial conceptual design approach for Middle Creek Village housing is meant to reflect a
new model of multi family housing in mountain communities. The site parameters and
community context were the prime motivators for the layout of the buildings and parking;
however, the solution incorporates some planning principles of a more'urban" nature.
The buildings are arranged around a pedestrian oriented 'street" which creates an axis running
east to west across the site. The "street" rises to the center of the project, following the
contours of the site. Entries into individual units as well as project amenities will occur along the
path, and it is envisioned to include both hardscape and landscape areas. The pedestrian
street will be an active place reminiscent of other village centers in the community.
Encouraging the use of alternate transportation, our team proposes to work with the Colorado
Department of Transportation and the Town of Vail to create a project specific transit stop, as
well as develop pedestrian and bicycle access from the site into town. These are accessible to
the residences along a central pedestrian spine that runs down the hill and through a two-story
opening in the center building, ending at the proposed transit stop. Given that a large segment
of the market for this project will be seasonal employees, our team believes the daily use of the
automobile can be minimal. Consequently, the relationship between the car and the building is
downplayed in our solution.
Separating vehicle parking from the buildings allows the project to create a pedestrian oriented
\illage" character and allows the buildings to be sited closer together, thus visually reinforcing
this image. This is similar to the exterior pedestrian spaces created by the architecture at areas
such as Bridge Street in Vail Village and Lionshead Village. The siting of the parking areas
behind the buildings will also help shield views of the lots from the frontage road and from
across the valley.
The Early Learning Center has been sited to the far eastem edge of the site, but is easily
accessible from the residences on the loop road. This configuration provides a nicely separated
site for the children's facility.
The overall site concept adheres closely to the existing contours of the site. The buildings rise
and fall across the length of the site with the terrain, creating an undulating profile that further
reinforces the'village" concept.
Buildinq Concept
Further reinforcing the 'village' concept, the buildings are designed as three separate building
types. All the buildings will be one unit deep, creating cross flow ventilation and economy of
construction. There are no enclosed walkways or stairtowers, as the site allows the majority of
units to be accessed at grade. lnternal floor plans will develop stacked plumbing cores, and the
mix of units will be designed to minimize structural offsets and maximize construction simplicity.
Each of the six residential buildings includes a one-story element on the end which houses
laundry and storage facilities for that building. The building orientation creates maximum
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southern exposure for every unit. The fact that the buildings are simply one unit deepcreates
excellent opportunities for flow-through ventilation. Our proposal will incorporate highly efficient
mechanical and electrical designs. We believe on a scale of zero to five our development will
achieve a five, or the highest efficiency rating available. Since all units are accessed from grade
or a small stair, there are no interior conidors to heat or cool, further enhancing overall energy
efiiciency. Please refer to our preliminary LEED evaluation in Section Vl-J for additionjl
information on energy and sustainability.
The overall character of the building design is meant to reinforce the 'village" concept, w1h
varying building types, massin$, and styles creating a cohesive whole. Stylistically, we will
incorporate the tradition of Vail Valley architecture while maintaining an economical design.
This can be achieved by the judicious use of distinct design elements throughout the project. In
a cost sensitive project, forms may be simple, but the sensitive use of massing, scale, and
rhythm can create an architecture that is respectful of, and complimentary to, the surrounding
architecture of Vail Valley. The exciting architectural design and pedestrian street space will
create a of choice for potential employees.
IV. SITE DESCRIPTION AND ENVIRONMENTAL INVENTORY
Location
The subject property is an irregular shaped, approximate 6.5-acre mountainside site; its location
is described as'a part of the South lz of the Southeast % of Section 6, Township 5 South,
Range 80 west of the 66 PM, Town of Vail, Eagle county, colorado. The property adjoins the
existing Mountain Bell property located north of the l-70 North Frontage Road.
Zoninq
A majority of the subject site is presently zoned 'NAPD' (Natural Area Preservation District),
and a small portion of the site where two early learning centers are located is zoned 'G'
(General). The proposed project will require rezoning the 6.5-acre site to the designation "H"
(Housing).
Site Usaqe
The property is owned by the Town of Vail. Onsite development includes two small wooden
structures presently housing early childhood learning centers. They are located directly east of
the offsite Mountain Bell structure. Site development plans call for demolition of the two early
childhood learning facility structures with construction of a new learning center at the southeast
portion of the site. "The remainder of the site is undeveloped open land except for the existing
road and parking area that serves the off-site Mountain Bell facility and the onsiteearly learning
facilities. The proposed use of the property was described in Section l, above.
Hvdroloqic Gonditions
No surface bodies of water are located on the proposed project site. Onsite surface drainage is
mainly via sheet flow and is generally southerly, although the western portion of the site likely
drains to Middle Creek, located off site just to the west of the entry road. A man-made drainage
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channel adjoins the eastern side of the Mountain Bell structure. Soil and drainage issues are
described in reports provided under separate cover by Koechlein Engineering and Peak Land
Consultants. lnc.
Geologic Conditions
A geologic report by RJ lrish, Consulting Engineering Geologist, Inc. is provided under separate
cover.
Biotic Conditions
Ecologically, the property is located in the Montane Tone at elevations of approximately 8,220 to
8,300 feet above mean sea level on a southerly aspect. Regarding plant communities, the site
is described as complex as it contains elements of several communities. These include
Montane Grasslands and Mixed Mountain Shrubland located on the eastern portion of the
mountainside with Aspen stands occurring at the southeastern portion of the site. These
communities include representatives of most of the life forms of the plant kingdom including
ferns, grasses, forbes, shrubs, and trees. Native and non-native vegetation is present including
invasive species of noxious weeds. The western area of the property is mainly Montane
Riparian Forest dominated by Narrow-leaf Cottonwoods (Populus angustafolia) and a scattering
of Thin-leaf Alder (Alnus incana) and Aspen (Populus tremuloides). Presence of Aspen as well
as species of invasive weedy forbes indicate the likelihood of past disturbance such as fire.
Climax community species such as Colorado Blue Spruce (Piceapungens) are located off site
higher up the Middle Creek drainage, but Blue Spruce and other climax community trees were
not observed on site.
Wildlife uses the site; large mammals including deer and elk browse on the Serviceberry and
Current located in the Mixed Mountain Shrubland Community. Other mammals including Black
Bear, Coyote, Fox, Rabbits, Chipmunks, Golden-mantle Ground Squirrels, Pocket Gophers, and
other rodent species likely feed and/or inhabit the site. Reptiles, such as species of Garter
Snakes also likely inhabit the site. No major wildlife migratory routes appear to be located on
site. Although Middle Creek is located off site directly west of the property's westem boundary,
the creek is not likely used as a migratory corridor. InterstateTO and development adjoining the
south side of l-70 preclude use of the corridor for migratory use. Middle Creek is contained
within a culvert from the north side of l-70 to its confluence with Gore Creek south of l-70.
No known threatened or endangered species of plants or animals have been identified at the
site. However, no onsite surveys for such species are known to have been performed. The
Colorado Natural Heritage Program's Conservation Status Handbook (1999) lists the status of
various animals, plants, and plant communities found in Eagle County. A copy of the Eagle
County list is provided in Appendix A.
We recommend having the Colorado Natural Heritage Program perform a GIS'Environmental
Review' of the subject site and adjacent area. The review searches known ecological
information regarding the status of plants, plant communities, and animals within a specified
radius of the subject property. The review will report the status of these communities.
Middle Creek, a relatively pristine stream that likely contains Native Cutthroat Trout, traverses
the adjacent property to the west of the subject site. The cr€ek flows out of a saddle located to
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the north upslope from the site. lt flows southerly down slope, jogs west around the Mountain
Bell building, and then flows southerly for approximately 150 feet paralleling the west side of the
entry road to Mountain Bell. lt enters a culvert beneath l-70 and the associated frontage roads
and flows through the culvert south of l-70 to its discharge point into Gore Creek south of the
interstate. Gore Creek flows westerly to its confluence with the Eagle River near Minturn.
The existing creek channel may not be the historic creek channel. Stream modification
(channelization) appears to have been conducted upstream of the culvert adjacent to the entry
road. This 150-foot reach is likely the closest location of the stream to the subject property.
The stream bank, as well as its associated vegetation, appears disturbed along this reach.
Observed vegetation was mainly upland in nature with both native (Western wheat grass-
Agropyron sp.) and non-native species of grasses (brome-Bromus enurmus), as well as
invasive noxious weeds (See Figure 4 photographs, page 2). Upstream from this reach and off
site from the subject property, a riparian corridor of wetland vegetation adjoins the stream
channel.
Adjoining the east side of the entry road, adjacent to its 150-foot north/south orientation, is a
Narrow-leaf Cottonwood (Populus angustifolia) community. This species is referenced in the
U.S. Department of the Interior, Fish and Wildlife Service publication, National List of Plant
Species That Occur ln Wetlands: lntermauntain (Region 8). lts indicator category is listed as
'Facultative', which is described as "Equally likely to occur in wetlands or nonwetlands
(estimated probability 340/o-660/o). The presence of this community may be due to a former
location of the stream channel or may be due to high groundwater conditions existing near the
stream channel.
The Narrow-leaf Cottonwood Community continues to the north (otf site) and south (on site) of
the entry road after the road turns east. Figure 4 Photographs, page 2, depicts the entry road
along its easUwest orientation with the Narrow-leaf Cottonwood Community adjoining both sides
of the road. The presence of this community is an indicator of the potential existence of
wetlands; it does not necessarily confirm their presence. Actual wetland existence can only be
determined by performing a wetland assessment, which not only considers vegetation type, but
also investigates other factors including the presence of hydric soils and wetland hydrology.
Montane Environmental Solutions of Vail, Colorado is presently investigating wetland issues at
the site. A letter regarding the status of their investigation is provided under separate cover.
V. ENVIRONMENTAL CONCERNS AND RECOMMENDATIONS
The proposed Middle Creek Mllage will impact plant and animal communities presently
inhabiting the property. Site development including earth moving activities and building/parking
lot construction will strip a majority of the existing native and non-native vegetation and displace
wildlife from the approximate 6.5-acre site. However, existing vegetation and wildlife are not
site specific. Surrounding property to the north, east, and west contain vast square miles of
similar plant communities, wildlife habitat, and wildlife species. The loss of these 6.5 acres
does not represent a significant impact to the plant and animal communities. Displaced wildlife
will find and inhabit nearbv similar habitat.
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Landscaping including grass, shrubs, and trees will cover a minimum of 30% of the developed
site. Middle Creek Village will be sensitively integrated into enviionmental surroundings. Birds,
insects, and possibly small mammals will utilize the landscaped areas, which will mitigate some
habitat loss.
The presence of Middle Creek Village will have impacts on use of adjacent property by wildlife-
particularly large mammals. Increased human presence and reflected light may influence
adjoining habitat use- Adjoining property is private so that residents of the village should not be
using adjoining properties. Human/bear interaction is possible. All trash dumpsters will need to
be covered and otherwise made bear proof. Lighting designed to reduce reflected light and
conform to the Town of Vail building code will be incorporated into the site design.
lmpact to Middle Creek from surface runoff will be minimized. Potential impacts include
grease/oil runoff from paved parking areas and sand/gravel runoff from winter sanding of roads.
The location of accumulated snow piles resulting from plowing will be addressed. The piles will
be located such that snowmelt containing grease, oil, silt, sand, and gravel do not impact Middle
and Gore Creeks. Any such contaminants discharged to Middle Creek may impair water
quality of the creek and potentially impact the fisheries of both Middle and Gore Creeks.
Engineered drainage swales, berms, dikes, etc. will be incorporated into the project design to
prevent impact to Middle Creek. Construction will be in accordance with all applicable local,
state, and federal regulations and standards. lf dewatering is required during construction,
water will be retained on site. As previously referenced, drainage issues are addressed in a
report under separate cover.
Montane Environmental Solutions is performing a wetland assessment. As previously
referenced, a potential exists for the existence of jurisdictional wetlands in the vicinity of the
Narrow-leaf Cottonwood Forest located adjacent to the existing access road. The presence of
this community is an indicator of the potential existence of wetlands; it does not necessarily
confirm their presence. We recommend performing a wetland assessment conforming to US
Army Corps of Engineers (The Corps) guidelines. lf on-site wetlands are identified, several
alternatives are available. These include: 1) establishing development setbacks from the
wetlands 2) wetlands can be taken through the 404 Permitting process and replacement
performed to mitigate the loss or 3) if the wetlands are below minimum surface areas
established by the Corps,, they may be removed and built upon. lf on-site jurisdictional
wetlands are identified, The Corps is the agency regulating such matters.
A parking facility is proposed at a location just east of the Mountain Bell structure. Middle Creek
lies north and west of this area. lmpacts to the riparian corridor and wildlife using the corridor
adjacent to Middle Creek will to be minimized. This can be accomplished by constructing the
parking area as far as possible from Middle Creek. Drainage issues as previously referenced
are also a concern in this area of the site. Engineered drainage swales, berms, dikes, etc. will
be incorporated into the project design to prevent impact to Middle Creek.
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VI. OTHER ENVIRONMENTAL CONDITIONS
A. Land Acquisitions and Displacements
The impact is "Generally Not Significant".
Approximately 6.5 acres of land is required; the developer/project owner is Coughlin and
company, 140 East 19'' Ave., suite 700, Denver, co 80203-1035. The Town of Vailowns the
land. lt is proposed that the Town of Vail will lease the site to the developer for a S$year period
at which time the property will revert to the Town.
Two displacements will result from implementation of the proposed project. The ABC and the
Learning Tree early childhood learning centers will be displaced. The existing buildings will be
demolished, and new facilities will be constructed at the southeastern portion of the site.
State regulations require a full National Emissions Standards for Hazardous Air Pollutants
(NESHAP) asbestos.inspection of the buildings prior to demolition. lf the inspection identifies
asbestos-containing materials, regulations require their removal prior to demolition of the
buildings.
No minority communities, households, or minority-owned businesses are located on site, and
therefore, will not be impacted by any potential negative environmental concerns such as noise,
air, or water pollution; or from the construction of the facility.
B. Land Use and Zoninq
The impact is "Generally Not Significant'.
A majority of the subject site is presently zoned 'NAPD" (Natural Area Preservation District),
and a small portion of the site where two early learning centers are located is zoned G. The
proposed project will require rezoning to the designation 'H" (Housing).
C. Visual Conditions
Parking areas will be located behind housing thereby shielding it from view from the Town of
Vail. Overall project form and massing is in character with existing Vail Village. The height,
mass, and materials that will be used in the proposed Middle Creek Mllage will convey a sense
of permanence and contextual and regional appropriateness.
D. Air Qualitv
The impact is "Generally Not Significant".
The project will conform to all applicable local, state, and federal air quality regulations and
standards, including, but not limited to those regulating odor, dust, fumes of gases, which are
noxious, toxic, or corrosive, and suspended solid or liquid particles.
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Fireplaces willnot be installed in the developmentthereby eliminating wood smoke. There will
be no balconies or decks that would provide space for grills or'barbecues. There may be a grill
in a public area of the complex.
The Middle Creek Village project is designed to discourage vehicle usage and encourage other
modes of transportation such as buses, biking, and walking. TDA of Colorado performed a
transportation impact analysis regarding the proposed Middle Creek Village. Their report is
provided under separate cover. The report indicates that the impact of traffic generated by the
proposed project will be "Generally Not Significant".
E. Noise
The impact is'Generally Not Significant".
Stewart Environmental identified no noise-sensitive land uses on adjacent properties. The
proposed site is located adjacent to the north side of l-70. The noise from the interstate is far
greater than any that would be produced by the development.
F. Liqht Pollution
The Middle Creek Village development will have minimal light trespass from the residential
buildings.
G. Floodinq
The impact is "Possibly Significant'.
Peak Land Consultants, Inc. addresses flooding issues in a report provided under separate
cover.
H. Naviqable Watenrvavs and Coastal Zones
The impact is'Generally Not Significant".
The proposed site is not located near or affected by a navigable waterway or a coastal zone.
l. Traffic and Parkins
The impact is "Generally Not Significant'.
TDA of Colorado performed a traffic study. Their report is provided under separate cover.
J. Energv Requirements and Potential for Conservation
The impact is'Generally Not Significant".
The proposed project is expected to result in energy conservation. The Vail Affordable Housing
Project, Vail, Colorado incorporates principles of sustainable design and utilizes design
strategies to reduce its energy and environmental impact. The U.S. Green Building Council's
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Leadership in Energy and Environmental Design (LEED) rating system is here used as a
preliminary sustainable design measure of the project. As it is cunently written, LEED version
2.0 is a system designed to rate new and existing commercial, institutional, and high-rise
residential buildings. lt specifically rates low-rise residential projects. The USGBC is currently
developing a residential version of the LEED rating system. Nevertheless, the sustainable
design principles embodied in LEED v. 2.0 serves as useful goals, guidelines, and measure for
sustainable features of the Vail Affordable Housing Project.
The LEED rating system consists of seven prerequisite criteria and 32 user-selected criteria
organized into five categoiies:
. Sustainable Site Development. Water Efficiency. Energy and Atmosphere. Materials and Resources. Indoor Environmental Quality
LEED is a voluntary, consensus-based, market-driven building rating system based on available
proven technology that evaluates environmental performance from a 'whole building'
perspective over a building's life cycle. The following preliminary LEED analysis incorporates
input from the design team to more accurately evaluate the conceptual design of the Vail
Affordable Housing Project.
K. Construction
The impact is "Generally Not Significant'.
Construction of the Middle Creek Village is anticipated to commence in March 2002 andwill last
for approximately 18 months, therefore any construction impacts will be temporary and of short
duration. All construction staging will be located on site and construction activities
predominantly will be confined to this site.
Contractors will be required to obtain the necessary permits and comply with all relevant town,
state and federal regulations regarding construction and safety. Potential construetion impacts
are described below.
Noise
No noise-sensitive land uses are located on adjacent property. Construction hours and
noise levels will comply with the Town of Vail policies.
Disruption of Utilities
It is anticipated that there will be no disruption of utilities, and therefore no significant
impact with this activity. Construction of all utilities to serve the site will be contained
within the proposed site.
Disposal of Debris and Spoil
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Demolition of two buildings is required as previously referenced. All construction debris
will be disposed at an approved landfill and transported on designated truck routes. The
general contractor will be responsible for on-site cleanup and disposal of debris.
Soil fill may be required to elevate buildings above the 100-year flood plain. Disposal of
soil is not required.
Water Qualitv and Runoff
Project construction will not impact existing water quality. The general contractor will
comply with water quality requirements for site construction to meet state water quality
regulations. Best Management Practices (BMPs) will be implemented during' construction including the use.of erosion control measures.
Access and Disruption of Traffic
City streets will not have any significant impact since the site is located directly off the l-
70 North Frontage Road. Any frontage road diversions will be addressed with a detour
plan.
Air Qualitv and Dust Control
Standard construction practices and BMPs will be used to control and minimize onsite
dust and emissions.
Safetv and Securitv
Standard construction safety measures will be observed on site. Town of Vail police will
ensure security.
Disruption of Businesses
No businesses are located in the immediate vicinity of the project area.
L. Aesthetics
The impact is "Generally Not Significant'.
The height, mass, and materials that will be used in the proposed Middle Creek Village will
convey a sense of permanence and contextual and regional appropriateness. In addition, the
facility design will promote an orderly circulation and efficient integration of buses, other
vehicles, and pedestrians.
M. Communitv Disruption
The impact is "Generally Not Significant".
No businesses or residential sectors will be disrupted or displaced, and no segments of the
community will be isolated as a result of this proposed project.
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N. Secondarv Development
The impact is "Generally Not Significant'.
The proposed project will not generate secondary development. The project is an outcome of
the community's determination to provide affordable housing for people already employed in
Vail and are presently living in or near the community. The proposed housing project indirectly
addresses the cause of traffic-related problems.
O. AGENCIESAND PERSONS CONSULTED
Agencies and Personnel
) Colorado State University, Department of Entomology, Phyllus Pineda
References Used
1. Colorado Natural Heritage Program, Conseruation Status Handboo( Volume 3, No.
2, May 1999.
2. Fish and Wldlife Service, US Department of the Interior, National List of Plant
Species That Occur in Wetlands: lntermountain (Region 8/, Biological Report 88,
May 1988.
3. Mitsch, WJ & Gosselink, JG, Wetlands, Van Nostrand Reinhold,2nd Ed, 1993.
4. Kittel, G., E. Van We, M. Damm, R. Rondeau, S. Kettler, A. McMullen, and J.
Sanderson. 1999c. A Classification of Riparian Wetland Plant Associations of
Colorado: User Guide to the Classification Proiect. Colorado Natural Heritage
Program, Colorado State University, Fort Collins, CO 80523
VII. SUMMARY
Odell Architects, PC retained Stewart Environmental to perform-an Environmental lmpact
Assessment of the proposed Middle Creek Village development located in Vail, Colorado.
Based on the findings contained in this report, the following conclusions have been drawn and
ooinions and recommendations made:
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Findinqs. Conclusions, Opinions and Recommendations
1. The proposed Middle Creek Village development is located adjacent to the Mountain
Bell facility, directly north across Interstate 70 from Vail Village. The proposed project
consists of multi-family housing constructed on a 6.5-acre site owned by the Town of
Vail. The project will not promote secondary development. The purpose of the project is
to provide affordable housing for people currently employed in Vail who are presently
living in or near the community. The project owner is Coughlin and Company, 140 East
19'Ave., Suite 700. Denver Colorado 80203-1035.
2. A majority of the subject site is presently zoned "NAPD' (Natural Area Preservation
District), and a small portion of the site where two early learning centers are located is
zoned G. The proposed project will require rezoning to the designation "H" (Housing).
3. Environmental issues regarding the proposed project are addressed in reports provided
under separate cover. These include a) geologic hazards - RJ lrish, Consulting
Engineering Geologist, Inc., b) drainage issues - Peak Land Consultants, Inc., c) soils -
Koechlein Engineering, and d) traffic - TDA of Colorado.
4. Wetland issues were identified and are addressed within this report. Montane
Environmental Solutions of vail, Colorado is presently performing an in-depth
investigation of the wetland issues. A letter regarding the status of their investigation is
provided under separate cover.
5. Wildlife uses the site; large mammals including deer and elk browse on the Serviceberry
and Current located in the Mixed Mountain Shrubland Community. Other mammals
including Black Bear, Coyote, Fox, Rabbits, Chipmunks, Golden-mantle Ground
Squirrels, Pocket Gophers, and other rodent species likely feed and/or inhabit the site.
Reptiles, such as species of Garter Snakes also likely inhabit the site. No major wildlife
migratory routes appear to be located on site. Although Middle Creek is located off site
directly west of the property's western boundary, the creek is not likely used as a
migratory corridor. InterstateT0 and development adjoining the south side of l-70
preclude use of the corridor for migratory use. Middle Creek is contained within a culvert
from the north side of l-70 to its confluence with Gore Creek south of l-70.
6. No known threatened or endangered species of plants or animals have been identified at
the site. However, no on-site surveys for such species are known to have been
performed. The Colorado Natural Heritage Program's Conservation Status Handbook
(7999) lists the status of various animals, plants and plant communities found in Eagle
County. A copy of the Eagle County list is provided in Appendix A.
We recommend having the Colorado Natural Heritage Program perform a GIS
"Environmental Review' of the subject site and adjacent area. The review searches
known ecological information regarding the status of plants, plant communities and
animals within a specified radius of the subject property. The review will report the
status of these communities.
7. The proposed Middle Creek Village will impact plant and animal communities inhabiting
the property. Site development including earth moving activities and building/parking lot
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construction will strip a majority of the existing native and non-native vegetation,
including noxious weeds, and displace wildlife from the approximate 6.5-acre site.
However, existing vegetation and wildlife are not site specific. Sunounding property to
the north, east and west contain vast square miles of similar plant communities, wildlife
habitat and wildlife species. The loss of these 6.5 acres does not represent a significant
impact to the plant and animal communities. Displaced wildlife will find and inhabit
nearby similar habita
8. The presence of Middle Creek Village will have impacts on use of adjacent property by
wildlife, particularly large mammals. Increased human presence and reflected light may
influence adjoining habitat use. Adjoining property is private so that residents of the
Village should not be using adjoining properties. Human/bear interaction is possible. All
trash dumpsters will need to be covered and otherwise made bear proof. Lighting
designed to reduce reflected light and conform to the Town of Vail building code will be
incorporated into the site design.
9. lmpact to Middle Creek from surface runoff will be minimized. Potential impacts include
grease/oil runoff from paved parking areas and sand/gravel runoff from winter sanding of
roads. The location of accumulated snow piles resulting from plowing will be addressed.
The piles will be located such that snowmelt containing grease, oil, silt, sand, and gravel
do not impact Middle and Gore Creeks. Any such contaminants discharged to Middle
Creek may impair water quality of the creek and potentially impact the fisheries of both
Middle and Gore Creeks. Engineered drainage swales, berms, dikes, etc. will be
incorporated into the project design to prevent impact to Middle Creek. Construction will
be in accordance with all applicable local, state, and federal regulations and standards.
lf dewatering is required during construction, water will be retained on site.
10.A parking facility is proposed at a location just east of the Mountain Bell structure.
Middle Creek lies north and west of this area. lmpacts to the riparian corridor and
wiblife using the corridor adjacent to Middle Creek will to be minimized. This can be
accomplished by constructing the parking area as far as possible from Middle Creek.
Drainage issues as previously referenced are also a concern in this area of the site.
Engineered drainage swales, berms, dikes, etc. will be incorporated into the project
design to prevent impact to Middle Creek.
11. Two displacements will result from implementation of the proposed project. The ABC
and the Learning Tree early childhood leaming centers will be displaced. The existing
buildings will be demolished and new facilities will be constructed at the southeastem
portion of the site.
State regulations require a full National Emissions Standards for Hazardous Air
Pollutants (NESHAP) asbestos inspection of the buildings prior to demolition. lf the
inspection identifies asbestos-containing materials, mitigation (abatemenUremoval) per
regulations will be performed prior to demolition of the buildings.
Stewad Environmental Consultants, Inc.
Page 13 of 142850-001 Environmental lmpact Report
Middle Creek Village
Vail. Colorado
VIII. ASSESSOR QUALIFICATIONS
Stewart Environmental has performed environmental consulting services for more than 2,800
different clients since 1980. With a staff of 25 professional engineers, scientists, and
technicians, Stewart Environmental is qualified to perform environmental impact assessments.
The following is a list of key Stewart Environmental personnel and their responsibilities on this
project:
Mr. Patterson (registered professional engineer) provided overall project administration and
project review. Mr. Blinderman (M.S. Natural Sciences, M.S. Industrial Science, registered
environmental property assessor, and certified asbestos inspector) performed the records
review, site reconnaissance, interviews, local governmental official contacts, and prepared the
. report of the findings of the environmental impact assessment. Mr. Patterson reviewed the final
assessment reDort.
This report was:
Prepared by:Under the direction of:
Richard G. Patterson.
Environmental Scientist
Stewart Environmental Consultants. lnc.
Page 14 of 142850-001 Environmental lmpact Report
Middle Creek Village
Vail. Colorado
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Appendix A
Conservation Status Handbook, 1 999
Eagle County, Colorado
p. 147 - 149
, Stewa ft Envircnmental Consultants. lnc.
County: Eagle
AmphibianS CNHP Statu5 rnd Rankint Retulrrory Strtu!
scientifi( Nrme common Nrmc Tracking Global state Agelcy lederal strte
- Status Rrnk Rank Sensitive Status StrtusBufo bonas pop r bolear toad (southern Rocky Mountain y G4ne $ Fs c E
population)
BifdS CNHp Strtus and Ranking Retutarory Statu!
scientific Name Common Nane Tracking Globrl st.tr Agedcy Fedcnl strtcStrtus Rank Renl Sensitivr Strtug St.tu,Acciit ? g,nailis Norrhem Goshawk W CS SAB, FS/BL
A.tolius [unerrl.rs Borerl Owl p GS 52 FS
A,llphitpiza bclli SageSparrow p G5 g3B,
BuuPltalo isllndic! Barrow's Goldeneye y G5 S2B, BL[t SC
Cypxloidcs niger Black Swifr y c4 S3B fs
Falco Fegrinus nnatu,rr Amelican Peregtine Falcon y G4Tj S3g, I.E
Grut connd2ntit tabida Gre.Er Sandhill Crane Y GST{ S2B, F T
FiSh CNHP Slatu! rdd R.nking [,egutatory St tue
Sci.ntifi. Name Comrnon Name Tracling Globrt Shl! Agency Fedc!.! St.t!Strtus Renk Rrnk Seniitive Shtu! Sl.tu,Gila tulI.tstd roundtailchub y c2c3 52 BLM SC
oneotlrynclus cla*i pkuitiau colorado Rive! cutrh.oar bout y G{T3 s3 Fs/Bl, sc
Mammals CNHP statur.nd Rankint R€gulrtory srahr!
scientific Nrrnc coErrlrort Namc Tncking Globet stat. Agedcy Fedcrrl st.tcSt.tqs Renk Renk Seasitive Statu! St.tu!Gth gub wolv.rine y c4 51 FS E. Lyrc caaa&nsis lynx y GS 51 FS E
Plccotut tou'nsr dii aolhscens Towncend's big€rEd bat subsp. y G4T4 52 BLM
MUSSeIS and Snails cNHp Statqs rnd Ranking Regulatory Statu.
Scientific Name Comrnon Nrmc Trackiag Global Strte Agenqy Fedcral StrtcStatu! Renk R.nk Sengitiv. Strtu! Slihrt
Lyrn'r',l.elt ttngn.lit swampy lymnaea y GS 52
Plant COmmunitieS CNHr Srarur end Renking negulatory Strrue
Scicntific NemG Comrnon Name Tacking Globel State Ag.ncy Fed.lrl StrtcSl.tus RtnL Renk Seniitiv! Stdur Statut. ABIES IASIOCARPA-PICEA Montane Riparian Fotests y GS S5
ENG E LMAN N I I/ALNUS INCAN,{. ABIES USIOCARPA-PICEA Monran€ Ripadan Forests y c5 55
ENCET.VIANNIIAIERT EN SA A UAT A
ABIES IASIOCARPA-PICEA Montrne Ripadm Folest y cS 54
ENGELNANNIVSALIX
DRUMMONDIANA
ALNUS /NCANA-CORNUS SERJCEA Thinleal Alder-Red0iser Dotwqod Ripadan y c3G4 53
Stuubland
ALNUS INCANA,/MESTC FOR8 Thinleaf Alder/Mesic Forb tuparian Y G3c4Q Sg
Shrublnnd
BETULA OCCIDENTALIVMESIC FORB Foothills Riparian Shrubland y c3 52
CARDAM|NE Alpirn Wetlands y G{ 54
CORD'FOUA-MERTENSTA
O{REXAQUTTIUS Monbnc Wer Meadows y G5 54
t47
CAREX SCOPULORUM-CALTHA Alpine Wetlands y c4 54
LEPTOSEPA!,/.
CAREX UTR]CULATA Beaked Sedge Mgntane Wer Meadows y c5 54
CORNUS SERTCEA lmhrhilts Ripa an Shrubland y . c4 Sg
DAN?HONIA ,NT€nMEDIA Monrane Grasstands y cU S3S4
DESCHAMPS|A Mesic Alpine Meadows y GU SU
CESPITOSA.UGUSTICUM
ELEOCHANS QUINQUEFLOM Atpine Wetlands y c4 SgS4
JUNJPERUS Xeric Weslem Slope Pinyon.rqniper y GS SUOSTEOSPERMNARTEMISIA Woodlands
/UNIPERUS SCOPULORUMrcORNUS Rlparian Woodland y c.l 52
SER/CEA
PICEA PUNGENS/ALNUS /NCANA Monrane Ripalian Foresb y c3 53. P/NUS EDUUS-/UNIPER US Xelic Wesrern Slope pinyon-JuniFr y cU SU
OSTEOSPERMA/f|IPA COMATA Woodlalds
POPULUS ANGUSTTFOUA-JUN/PERUS Monbne Riparian For6r y c2c3 52
SCOPULORUM
POPULUS ANCUSTIFOLIA-PICEA Monrane Ripari.n For€srs y c4 54
PUNCENVATNUS INCANA
POPULUS ANGUSTIFOLTAALNUS Montane Ripalian Forest y G3? 53
INCANA
POPULUS ANGUSITFOUAICORNUS Cottonwood Ripadan FoEst y c4 53
STRICEI
POPULUS ANGU9TIFOUMALIX Nalrowleal Cottonwood Riparian For€sts y C1 51
ERIOCEPHA|-,4 VAR,
LIG U LI F O LI A.SHEP HE RD I A
POPULUSTREMULOIDE'ACER Monrane Riparian Forests y G2 SfSz
GTAERUM
QUERCUS GAMBEUT-AMELANCHIER Mircd Mounrain Shrubland y c3c5 SU
I,I'IAHENS'S
SALIX Lower Montane Willow Carrs y G3 53
D RU MMO N D I AN A.C.ILAMAGROSTIS
CANADENSTS
SALIX DRUMMONDIANANESIC FORB Drumrnonds Willow/Mesic Forb y C4 54
SALIX E&GU/v8ARE GROUND Coyqte Witlow/Barc crcufrd y c5 55
SAUX MONTICOI]/CALAMACROSTIS Monrane Willow Carr y G3 53
CANADENS/S
SALIX MONTICOL/\TCI|REX Monrane Ripadan Willow Carr y G3 53IJ|RICUIATA
SALIX MOt{f ICOWMESTC FORB Montane Riparian Willow Carr y G3 33 ,
SALIX PLANIFOLWCALAMAGROSTIS Subalpine Riparian Wiltow Carr y c3 Sl
CANADENSIS
SAUX PIANIFOUAEALTHA Subatpin€ Ripariln Willow Calr y C4 54
LEPTOSEPAtl
SAUX WOLFI{f,I.REX UTNCULATA Subalpine Riparian Wiltow Carr y c4 53
SHEPHERDIA ARGENTE^ Foethitts Riparian Shrubland y c3c4 Sr
PlantS CNHP Strtu!.nd Rrnking Rctul.toly Strlu!
scientific Nn!|r Conmon Narac Tr.cking Globd state A$ncy Fcdcril Strtc
Bohydliurn runnria comrnon Moonwort sl.tus t;t U$ sertitiv' statu' sta'!'
CypriVdiumfrxia atuut Pulple Lady's-slipper y c4 53 FS
Drabn rrtifrucla Mountain Whitlow€F.r, y G3? 52
Erioplonn ollaicuu var n otatntu Altai Cottongnss y G4T? 53 fs
Gynnxarpium d,ryapkris OakFem y G5 SZ93
Lilttnoft*b cnsihlit Canyon BogOrchid y G4GST3? 53
Lktda brenfs Nortlrern Twnyblade y G{ 52 BLM
148
Lycopotliur annotitrttr vM p|l tctrs Srifl Clubmoss
Lycopodirurr dubiunt Stiff Clubmoss
Pensletrcn cydtlroplotus lVliddle Park Penstemon
Pettstcnon hortingtonit Hatrington Be.rdtongue
Plalonllvra sparsifom vat etsilolia Canyon Bog-Orchid
Y GsTU SU
Y GSTU SU
w c3G4 S3S4
Y G3 s3 FS/ BL
Y G4G5T3? 53
t49
Parking Management Plan
Planning and Environmental Commission
March 11,2002
Middle Greek Village
Parking Management Plan
Parking Space Count and Gonfiguration
The Middle Creek development provides all of the parking spaces that are required by Town
Code, for atotal of 243 spaces. Of these, approximately 60%o are covered, and 110 spaces are in
a tandem configuration
The following Table summarizes the breakdown ofparking spaces for Middle Creek Village:
Number Percent
Subtotal Total Subtotal Total
Standard vs. ComDact
sunoaro-150
Compact
Traditional Compact
Standard/Compact Hybri d2
Subtotal for Compact
Total
Surface vs. Covered
Covered
Surface
Total
Tandem Space Details
Tandem Spaces
Full Size
Compact
Standard/Compact Hybrid
Subtotal
67
26
61.7%
27.6Yo
l0.1Yo
38.3% 38.3%9393
243 l0U/o
100%
76.4%
10.9%
12.7o/o
23.6% 23.6%
s9%
4r%
143
100
243
l2
t4
84
2626
___ltg_
Number
_t00%_
PercentChildhood Education Center
'lncludes l0 ADA Accessible Spaces
2standard/Compact Hybrid spaces are IIIRGER than compact spaces. For surface locations, the hybrid spaces are 8
x l8 versus 8 x 16 for traditional compact spaces. For covered parking locations, the hybrid spaces are also 8 x l8
versus 8 x 16 for traditional covered compact spaces.
Full Size (includes I ADA)
Compact
Total
t7
J
8s%
t5%
r00%
Assignment of Spaces
All tandem spaces and all covered spaces will be specifically assigned to individual
residents/units and will be monitored. Since the project intends to charge for covered spaces
(whereas surface spaces will be free of charge), Middle Creek management will monitor the use
of all covered spaces. Furthermore, tandem compact spaces will be assigrred to units that have
cars that fit in compact spaces, and covered compact single-car spaces will be assigned to
compact cars. Since there are very few tandem compact spaces (only 13 apartment units out of
the 142 total apartment units will use tandem compact spaces), issues related to monitoring and
managing these should be minimal.
Childhood Education Center Parking
The Town of Vail does not have a specific parking requirement for Day Care Centers, and we
have been asked by Town Staffto review the requirements of other municipalities (see separate
memo from Odell Architects.) The standard requirement for a Day Care center of this size, based
on the requirements of Boulder, Lakewood, and Denver, would be 18 spaces. The Middle Creek
Development Plan provides for 20 spaces, of which oriy l5Vo are compact. Furthermore, there
are additional "housing" spaces immediately adjacent to the 20 dedicated spaces for the CEC,
which are available for the short term pick-up and drop offparking needs of the CEC. Since
some or many of the residents of the housing project will use the cars during the day to get to
their places of employment, Middle Creek anticipates that there will be many additional spaces
available to CEC paxents during the mid-aftemoon pick-up rush hour.
20
A
ODELL ARCHITECTS. P C
Date:
Froln:
Re:
To:
March 4, 2002
Bridget Venne, Odell Architects, P.C.
Middle Creek Early Leaming Center-Parking Comparisons
Allison Ochs
Allisorl
As per your request, I have looked through the zoning codes of other jurisdictions to
determine ifthey have specific childcare or preschool parking requirements. I found these
requirements for the cities ofBoulder, Denver and lakewood as follows.
City of Boulder (Code Web Site: www.ci.boulder.co.us/caolbrc/title9.htnl)
I determined that the closesi Boulder zone district to the Town of Vail H Zone district is
IZ-E, High Density Housing in an existing district (Chapter 2, Section 9-2-1). A large daycare
center with more than 50 children is an acceptable use, pending review (Chapter 3.1, Section 9-
3.1-l). The number of parking spaces for any approved use other than housing in the HZ-E zone
district is 1 space for every 300 s.f of building (Cbapter 3.2, Section 9-3.2-1). The current Early
Leaming Center plan is approximately 5,400 s.f. / 300 s.f. = 18 parking spaces total.
City of Denver (Code Web Site: http://fws.municode.corn/CGl-
BIN/om isaoi.dll?infobase= I 0257.NFO&softnaee=mccdoc
The closest zone district here is R4 or R4-X (I will use R4-X because the parking
requirements are more stringent), in which multi-family housing and childcare centerc are
permitted (Chapter 59, Article III, Section 59-215). The required parking fora non-residential use
is also I space per every 300 s.f. ofbuilding, also equaling l8 (Chapter 59, Article III, Section 59-
519). There is also a special class (class seven) for school parking requirements. For a school
which is not an elementary, middle or high school, the required area of parking must be equal to %
the building area, approximately equal to 5300s.f./2= 2,700 s.f. The current area of parking fust
parking spaces, not including drive lane or turnaround) is approximately 2,900 s.f(Chapter 59,
Article V, Section 59-586).
City of Lakewood (We have this in our library, but the Web site is
www.ci. lakewood.co.us/cdbg/zoning.htm.)
The closest zone district is 5-R, higher density zoning disuict, including aparhents at a
density of less than 25 units per acre. Child care facilities are a permifted use. The parking
requirement for a child care facility is 3 spaces per every 1,000 s.f. plus one space per facility
vehicle (bus or van owned by the school itself). This also equals 6 x 3 = 18 parking spaces total,
exclusive of facility vehicles (I don't believe the ABCllearning Tree currently has facility
ao clcparking memo 3-4
vehicles, but we can provide one space for future use), (All ofthis information was found in the
Iakewood Zoning Ordinance, Section 17-5-13, pages 5-34 and 5-37).
The cunent number of parking spaces we are providitrg at the Early Leaming Ceoter is
2O which meets or is itr excess of all of these requirements. We arc currently attempting to adjust
tbe partiqg area 80 that ooly 25olo of those spaces ar€ coopect If possible, we will also inccease
tbe number of qaces to 21. Ifyou have any questions concerning tris document, pleese conact
me. Thanlc yot1
Bridget Venne
Oo
Traffic Study
Planning and Environmental Commission
March 11,2002
To: Allison Ochs
From: Tom Kassmel
Date: 3-8-02
Re: Midclle Creek Develooment
As part of the Middle Creek Development approval, the development will be required to construct the
following improvements along the South Frontage Road.
Improvements
l. The South Frontage Rd. must be widened to accommodate a left-tum lane. The current lane
Configuration shall be improved as follows (from North to South): 2.5' concrete curb and gutter, 6'
asphalt shoulder, 12' westbound lane, 16' left turn lane, 12' eastbound lane, 6' asphalt shoulder, 2'
gravel shoulder. All widened areas shall be constructed with a firll depth pavement designed by an
engineer. A complete 2" asphalt overlay will be required between the east (Main Vail Roundabout)
and west road construction limits. All lane tapers shall meet the requirements of C-DOT. Guardrail
shall be installed oD the south side of the Frontage as required by C-DOT
2. The 2.5' concrete curb and gutter shall match the existing curb and gutter at the North Main Vail
Roundabout and extend to the westem most limits of the road construction.
3. A 10' wide, 6" thick concrete pedestrian/bicycle path shall be constructed from the North Main Vail
Roundabout to the westem most limits of the road construction.
4. The existing concrete box culvert that carries Middle Creek beneath the S. Frontage Rd shall be
extended to accommodate both the road improvements and the extension of the pedestrian path. A
debris guard shall also be installed.
5. A storm sewer drainage system shall be constructed, including inlets, storm sewer pipe, manholes,
ditches, etc. . . as designed by an engineer, to adequately convey all25-yeat storm run off in the area.
6. Street lighting shall be designed and installed along the frontage road, and at a minimum placed at all
intersection points.
7 . All necessary grading and revegitation shall be completed within the coDstuction limits by the
developer.
8. The Town of Vail Public Works Deparunent and C-DOT must approve all improvements.
As part of the final submittal, prior to DRB approval, the following additional plans shall be submined:
l. Retaining Wall profiles and details.
2. Final hazard mitigation plans and details.
3. Final Drainage study and design. (20 scale)
4. Pavement Design sections.
5. Final Grading plans and details. (20 scale)6. All necessary easements including, drainage, pedestrian and an easement for the Town bus stop and
area.
D'
To:
From:
Ftx-MrmonaNDUM
Otis Odell, Otis Odell Architects
David Leahy, TDA
Fax:. 303-670-7162
Date: 314102
Time: 8:47 AM
Job #: 4342
Subject: Middle Creek Residential, Traffic
# ofPages: 2
This memo is in response to TOV submittal review comments of 2126102 (Tom Kassmel to Allison Ochs)
that included several haffic concems and suggestions.
Issue #18: TDA applied a i0oi reduction to the ITE (national vehicle trip rate reference) vehicle trip
rate in peak periods. Town staff believes a l5 to 2094 rate is more acceptable to them and
CDOT,
Response: First, we should note that the vehicle trip reduction was applied only to the residential aspect
of the development plan. We used ITE rates for the Early Leaming Center even though these are
somewhat higher vehicle hips rates than those observed in the December access drive counts. By its
nature, virtually all trips to and from this site will be via car. Second, we do not assume residential
trip making will be reduced. We believe the number of trips made by car will be notabiy less than
typical ITE "Apartment" vehicle trip rates would yield. We don't think resident car ownership will
be any different than other employee residential units in the Valley but car use, particularly during
commute times, will be quite different than the ITE national reference. Also, we wanted to offer a
realistic look at what the scale of non-auto trips Middle Creek could have and how this might impact
the Town's alternative (bike/pedestrian/bus) transportation system. Our person lnp assessment of
potential Middle Creek trip making is shown below.
PM Peak Hour Person Trips by Mode
Using ITE's unadjusted trips rate for an apartment-type residence would suggest 86 vehicle trips in
the PM peak hour, 60 coming in and 26 vehicles heading out. Assuming an average of 1 . 1 persons
per vehicle yields 95 person hips which we round to 100.
As stated in orr l/26/02 report, this particular site's setting (on-site bus stop for three North Frontage
Road free bus routes, within a l0- to 15-minute walk/bike of Vail and Lionshead Villages) and tenant
base (seasonal and year-round local workers) encourages non-auto travel (20% reduction). Long-
term employee parking for many establishments in Town is limited and at times costly. This could
induce a further 10% reduction in commute auto trips and encourage higher ridesharing, especially
for roommates and fellow tenants working for the same employer. Our estimated travel more split for
the 30 peak- hour (30%) person hips is:
PM Peak-Hour
Travel Mode % of Total # Person Trips
Town bus l5o/o 15
Extra shared ride 6% 6
Bike 5% 5
Walk 4o/o 4
Total 30% 30 person trips
TDAColorodo lnc.
CDOT Access Permit
Using our suggested travel mode split yields a project peak hour left turn volume entering the site that
is close to the level requiring left tum deceleration lane construction on North Frontage Road per
CDOT's Access Code. With the addition of Town buses the left-turn threshold will be exceeded.
Accordingly, our report recommends left turn lane construction at both the residential and learning
center. This is the same result that would have resulted from using the standard ITE vehicle trip
generation rate. The access permit application hansmittal letter to CDOT will specify these
improvements per the Code.
Issue #18: The trffic study should analyze and discuss pedestrian movements through the roundabouls,
transit needs and whether another bus will be needed to accommodate added ridership.
Response: As shown in our mode split estimate above, we expect four to five walk trips to or from the
site in the peak travel hour. Those pedestrians passing through the roundabout would cross the west leg,
using the walkway under I-70, sequentially crossing the I-70 EB off ramp terminal, WB South Frontage
Road lanes and then the EB lanes. Pedestrians cross roundabout lanes one or two carJengths behind the
Yield lines, using the splitter island as a refuge befween crossing decisions. We are not aware of any
inherent sight distance or excessive speed conditions at the Main Vail roundabouts that would make this
lorv volume of pedestrian crossings a capacity or safety problem.
We anticipate about 15 transit trips in the PM peak hour, 10 arriving, 5 departing on a bus. During this
period six buses will arrive and then depart the site. At most, we might expect half of the 10 hourly
arrivals could be on the same bus. I would imagine most bus trips could accommodate five more
passengers even if they are standees. If not, residents would likely adjust their bus trip to avoid skier
crowds.
I trust this response address the Town's current issues with traffic impact assessrnent of the Middle Creek
project.
Please let me know if there are anv questions with our findines and recommendatrons.
TDAColorodo Inc.
820 l6th Street, Suite 424
Denver. CO 80202
l3o3l 825-7 1 07 / FAX 825-6004
emoil: LeohyTDA@ool.com
Traflic Impact Assessment
Forthehoposed
Middte Creek Residential & Early Learning Center
Development
Vail, Colorado
Preparedfor
Odell Architects, P.C.
Evergreen, Colorafu
Pr€ef,€dby
TDA Colorodo, lnc.
s20 l6e Sft€t, Suite 424
D€w€r, CO 80202
(303) E25-7lfl/FN( (303) 825.6001
Dec€rnber 31,2001
UpdatedJanuary 24,2W2
Traffic Impact Assessment
For the Proposed
Middle Creek Residential & Early Learning Center
Development
VaiL Colorado
Prepared for
Odell Architects, P.C.
Evergreen, Colorado
Prepared bv
TDA Colorodo, Inc.
820 l6tb Sreet. Suite 424
Denver, CO 80202
(303) 825-7107/FAX (303) 8254004
Decernber 31,2001
Updated Janury 24. 2002
MiaalDrnt rrofic Impact Studv
RECOMMENDEI' PROJECT ROAI' IMPROVEMENTS
Left Tum Lanes ................ """ " t!
Right Tum Storage Lanes ...........,... """"""""" ' 12
RiAhuLeJt Iurn Acceleraion Lanes................ ,. ' ' "/:
SUMMARYOFFINDINGS. ............ 13
APPENI'D( A
LEVEL oF SERVICE woRKsHEETs.
12
TDA
ro,ou}r*r*rc InprctSnQ
Figures
Tables
Table tNorthFrontageRoadPeakHourlevelofService ......."..............5
Table 2 Vehicle Trip <ieneration........ ............................ 7
Table 3 Peak Hour Level of Senrice at Buildout........ .---...-...........'..'....... 9
Table 4 North Frcn:age Road Level of S€rvice..................... ..."".......... l0
TDA
Pa.se | fulitldle Creek Traffic Imoact Studv
INTRODUCTION
This report describes traffic conditions, now and in the future, in the vicinity of the planned
Middle Creek residential and adjacent daycare development in Vaii along the North Frontage
Road. The6'/z-acreslopingsiteiswestoftheManVail Roundaboutadjacenttothe"MaBell"
communications tower and an existing daycare center. A singe access drive serves both existing
uses. The lvliddle Creek project consists of 142 affordable apartment units and a contemporary
early childhood learning center, replacing the existing center. The mix of studio, I ,-2,- and i -
bedroom units is structured to the affordable ( deed restricted) housing market for the Vait Valley
mountain resort service sector. Siudio units (64 dwellings) will conrpromise just under haif of the
total unit mix. The new childhood leaming will be situated east of the residences and will have
separate access and parking. A totat of245 surface parking spaces will be provided for the
residential portion of the project and an additional 20 will be part of the learning center site.
Residents will have good alternative transportation choices. The site in convenient to three Town
free bus lines serving Nonh Frontage and the Town's transportation center in Vail Village. A bus
turnout alongside the main entrance will permit on site boarding and alighting. Pedestrian rvalks
will connecr with the Town's trail system. The Town's in-town bus system and transportation
center are a V4 mile wallgbike to the east and south. The I-70 pedestrian overpass connection to
Lionshead Viilage is % mile ( l0 - minute walk) west of the site.
This report describes the expected trip making characteristics oftenants and day care patrons and
workers, evaluates ex.isting and expected future traffic opeftlting conditions in the vicinity and
lastly, It address the need and scale of suggested access and circulation improvements.
This reoort contains the following sections:. Introductiono Existing & Furure Road Conditions. Project Trip Ceneration and Distibutionr Future Traffic Conditions
. Recommended Road Improvements
r Summary of Findings
' Appendix A: Level of Service Worksheets
TDA
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E)SSTING AND FUTURX ROAD CONDITIONS
Thrs section descnbes existrrg and future traffic conditions along North Frontage Road in the
project ncrnity,
North Frontage Road
North Frontage Road is a two-lane frontage road wrthLn the I-70 right of way, Graded shoulders
vary from four to eight feet rn wrdth. It connects the MaIrr Vail and West Varl interchanges
serving lodgings, the Town post offrce and commercial uses along the north side of the road and
roads branching offto slope-srde home sites. The alignment is essentially straight witi gradual
vertical curves that follow the gently rolling terram. Posted speed is 35 mph m the prqect
vrcinity Peak hour traffic counts perfcrmed recentlyt suggest a traffic volume of about 6,000
vehicles per day passtng the srte.
Vail Road
Vail Road connects Vail Vrllage to the t-70 urterchange and the frontage roads servrng eacb side
ofthe interstate hrghway. The two-lane road flares to add lanes at the roundabout aPProaches
South of rnterchange two-lane Varl Road rrtersections wrtl West meadow Dnve and Wi.llow
Road are Stop-srgr controlled.
I-70 Interchange Roundabouts
The r\Iarn Vail I-70 rnterchange roundabouts were tle fust modem roundabouts constructed ln
the state of Colorado. The South Frontage Road roundabout rs the largest ur the state at a 200-
foot outside diameter. The North Frontage Road roundabout is the smallest in the Vail Valley at
120-foot diameter. Counts taken at the North Frontage Road leg indrcate PM peak how volumes
of 220 entering vehicles and 750 exiting vehicles of which 35 came fiom the I-70 westbound off
ramp. The North roundabout finctions effectively as a single circulatrng lane, although vehicles
can physically travel two abreast around the crrculatrng lane.
Existing Level of Service
Level oi service (LOS) is a method used for evaluating roadway traffic operating conditions. It is
dependent on many factors rrcludir:g traffic volumes, percent heavy vehrcles, lane and shoulder
widths. The level of servrce is determined by calculaturg the delay expenenced by each vehicle
Thrs delay is assrped a lener between A and F representrng the length of delay. At LOS A
motorists will e:ipenence litle or no delay. At LOS F motonsts will expenence stop and go
conditions and extensive delay. Delay ts used as a measlue ofcomfon, convenience and
maneuverabillty oftle driver. Delay for the affected ntelsectrons was determrned usrng
Higlrway Capacity SoJtware, imp lementing methodology n the Highway Capacit.v Manual, 1991
up<lated 1997, Transportation Research Board. The urtersection capacity analysis worksheets are
rrcluded in Appendix A
Nofth Frontage Road
For a two-lane, 3545 mph roadway with l I -foot lanes and 4-foot shoulders, limited passuxg
opporn:nities and unurtem:pted flow the seryrce volumes for each level of service range from I25
vehicles per hour at LOS A to 1,755 vph at LOS E, as shown ur Table l, The observed
(December 2001) peak hour volume along Nortb Frontage Road at the prqect access is about 415
vehiciesrnthe8:30to9:30AMpeakhourand535vehrclesdunngthe4:15to5:l5PMpeak.
Accordrngly, curent two-lane roadway opelation is LOS C in the Ai\l and PM peak penods,
' Peak Land Consultants. Inc. Thursday l2ll3l0l
TDA
I-70 Main Vail lnterchange North Roundahout
According to Lief Ourstcnr, the Town's roundabout operations consultant, peak how volume
entering the rorudabout is 2,233.+ehicles-andat this leveltbe roundabotrt is opera:ng rn the LOS
A range. This indicates there is a considerable capacity reserve available at the north roundabout.
Table 1
mortt Frontage Road Level of Service
Middle Creek
Maximum Service Flow Volume
Vehicles per nourLOS
A
tt
E
125
330
610
915
4 7E4
Source: TDA Colorado using HCS two-tane
Prolect Access
Moming and aftemoon tuming movement counts at the existing Day Care/Ma Bell access dnve
are shown rn Figure 3, The highest stngle movement, 28 westbound rigbt tums from North
FrontageRoad,occursdunngthe8:30to9:30AMpeakhour. DururgthePMthehtghest
movement was l5 left tums to eastbound North Frortage Road (toward the I-70 urterchange)
followed by 14 left tums fromrhe eastbound direction. Daycare trips appear to be linked
westbound frontage roadElps in the AM and the retunr eastbound trips in the PM. The prevarltng
flow of through traffic is eastbound in the AM and westbound in the PM.
TDA
-
Figure 3
Residential and Eariy Learning Center Access
AM (PM) Existing Peak Hour Volumes
Middle Creek Development
4\
I
NOR TH
No Scdle
Existing Daycare/Ma Bell
(o
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222 Q00)
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Page 6 TDA
PROJECT TRIP Gf, NERATION
Project vehicle trip estrmates are based on The Institute of Transportatlon Engineers publication
Trip Generation,6th Edrtion, 1997. This documenf,rs a compilation of trips rates denved from
traffic counts at srneila,r lses throughout the country. Most ITE residential tnp rates are from
traffc counts at sububan settrngs with lrnle or no access to public uanst.
ResidentialTips
The Middle Creek project is located along a high service transit corridor wrth good pedestnan and
bike linkages to Vail aad Lionshead Villages. .Lnaajority of tenants are expected to work rn Vail
establishments where long-term (i.e. 'worker') on-ute daytime parking supplv will be at a
premium for much of the year. We anticipate MiddJe Creek residents will be less inclined to
travel locaily by car for work and personal busrness tnps than their "lTE-apartrnent" counterparts.
Accordrngly, we expect daily residential vehich tnps writ be in the order of 20% less than the
ITE denved rate and peak hour vehicle tnps willbe onequarter to one-thrd less than the ITE
rde. Urban centers wrth hrgh all day parkrng costs and good transit access can have transit mode
splits of 25 to 40% in the commute penods. We believe Middle Creek residents could readily
exhibit a collectrve 30% walk/bus/brke mode split rn the commute penods. With these proJect-
specific adjustments we estimate at buildout the residential use will generate 753 daily, 52 AM
and 6l PM peak hour vehrcle tnps, see Table 2.
Learning Center Tips
The early leamrng center will have 15 employee and short-term spaces. Parents typically park for
five to 15 m:nutes for the moming drop off and evenrng pickup. Ustng ITE rates for a Day Care
Center, the center is expected to generate about 470 tnps per day and about 75 vehicle tnps
durrng each peak hour.
Table 2
Estimated Vehicle Trip Generation
ldiddle C reek Deve lopment
Vail, CO
Source: frp Gene ralion 6th Edition, Institute of Transportation Engineers, 1997.
1. Day Care Center, ITE Land Useffi
2. Aparlment, ITE Land Use 220, adjusted to 80% of ITE daily & 70% of peak hour.
Town Bus Trips
Although not part ofthe prqect per se, buses entenng and leavurg the residential access drive are
added to the prolect peak hour volumes for operational analysis purposes. The three bus routes
servrng the site operate at 30-mtnute frequency rn each direction producrng 12 bus trips (6 m, 6
out) per hour. These trips are added to project access tnps to amve at total access drive tnps.
AM Peak
ln Out
PM Peak
In OutLand Use Size Type Daily
Day Care' 15 Employees
Apartments2 142 Dwellings
468
-7 q,1,
41
43
JJ 41
Total 't,221 49 78 62
't27 139
TDA
-Paoe tr v 'uilldleabk Traffrc Impact SUS
PR0JECT TRIP DISTRIBUTION
Middle Creek residential trips wrll distribute over tie surrounding road system based on trip
ongm or destination, and ease and directness of travel. New residential tnps wrll travel west on
the frontage road for food shopping, mail and other local personal business trips. More distant
tnps outside the Town will be onented east toward the I-70 interchange. Accordrngly, we
distribute 507o of residentral trips to the west and 50% east ofthe srte. Day care rips, which tend
to be linked to other trips, are distributed similar to existing artering and exttutg patt€ms.
TDA
FUTUR.E TRAIT.IC COND ITIONS
Future condittons were analyzed assuming project buildout by ?003 An annual background
growth of 3% was assumed for the vehicle volume along North Frontage Road not related to the
proJect. This accommodates moderate continuurg residentral development along the North
Frontage Road traveished. For firture analysls we applied the ITE trip rates to early leamrng
center. These are somewhat higher tian the observed peak hour day care volumes and are
assumed to accoutrt for added business due to updating the facllrty.
Future Volumes
Figure 4 rllusftates peak hour volumes expected at the intersection of North Frontage Road and
Nliddle Creek Residential and Leam;ng Cqrt*-accesses. The highest tuming rnc'rement rvill be
westbound right tums - 31 erntenng the Leaming Center access rn the AM and a simrlar volume
entering the residential driveway in the PM peak hour. The highest left tum entering volume will
be 26 vehicles tummg into the Leaming Center dnve rn the Plvl peak hour.
Future Level of Service with Project
Tables 3 and 4 depict level of servrce at the two access dnves and along rwo-lane North Frontage
Road at buildout of the planned Middle Creek housing development and the new Leamung
Center, respectively. Capacity analysis worksheets are atlached as Appendix A.
Residential Ma Beil Access
Thrs Stop-sip approach wiil operate rn the LOS B range for both the ANl and PM penods. This
is a very acceptable level for peak hour operation at a property access ntersectton. Left turns
from the srte wlll expenence short delays (LOS B) rn the AM and PM peak hours.
Early Leaming CenferAccess
Simrlar to exrstrng, thrs approach wrll expenence short delay (LOS B). Left tums out oftlre site
will have shon cielays, (LOS B)
Table 3
PM Peak Hour ExistinglBuildout Level ofService
ttotth ftontage Road/Middle Creek Proiect Accesses
Movement Residential Learning CenErAccess Access
Southbound Left -ttr)fuB
Westbound Right A/A
Source: TDA Colorado, Inc. Using HCS Unsignalized Anaiysis.
North Frontage Road, Two-lane Roadway
North Frontage Road east of the pro;ect is eryected to carr.v approxrmately 460 AM and 610 PM
peak hour vehicle tnps. At this volume, two-lane North Frontage Road wrll contmue to operale at
LOS C durmg both peak hours.
TDA
North Frontage Road Level of Service
Middle Creek Development
z-Lane North Frontage Road
Existing Buildout
AM/PM AM/PM
i See Table I
TDA
Figure 4
Residential and Early Learning Center Access
AM (PM) Future Peak Hour Volumes @ Buildout
Middle Creek Development
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TDA
RxCoIvtMENDED PROJECT ROAD TITtrROVEMXNTS
Several improvements ale suggested at the Middle Creek pro.lect access rntersectrons m
conformance wrth the CDOT State Highway Access Code. These changes reflect the 35 mph
posted speed ofNorth Flontage Road, peak hour voiumes portrayed m Figure 4, and the Category
F-R (frontage road) classification of the faciltty
Left Tum Lanes
At 23 vetucles in the PM peak hour, the residential access is proJected to be near the 25 vehicle
per houl Ieft turn threshoid for warrantrng a left tum storage lane per the Code. Thrs volume
rncludes 3 westbound Town buses' As a matter of safety, we advrse constnrcting a left tum
storage lane at the residential access. The prolected (for operational analysrs) lefttum volume of
26 vehicles for the Leamrng Center access would just exceed this threshold. Accordingly, the left
tum lane widenrng for the residentiai/Nta Bell access should extend to &e new Leanmg Center
access. The portion between tle two dnves can be stnpped as a two-way left turn lane and thus
serve as a left tum staging lane for left tums out of the residential access. This center lane wtll
provide a larger, more comfortable effectrve left tum radrus for buses tuming left out of the stte
Right Tum Sforage Lanes
Nerther access meets the 50-vph threshold required to warrant ngbt tum lanes. A.tthough a nght
tum lane would ard Town of Vari busses entenng the property, widenrng for the center tum lane
descnbed above precludes addrtional N orth Frontage Road wrdenrng along the properry's steep
frontage,
RighuLett Tum Acceleration Lanes
Rrght or left tum acceleration lanes are not needed per tie Code at thrs pro1ect for either access.
The two way left tum lane suggesed above will sewe as a short left tum staglng/acceleration lane
for left tums leaving the site.
TDA
SUMMARY OF FINDINGS
A combured total of about 1,220 vehicies per day will use tie two proposed Middle Creek
resrdential and new leamrng center development access drives. Residents are rntended to be
employed at nearby Town shops, restaurants and business establishments. Daily site-generated
traffic is expected to be about 20% less than a simrlar 142-unit apartrnent complex ur a typical
suburban settrng. Similarly, the combrratron of daytrme parkmg cost and avaiiabiltty in Vail and
Lronshead Villages, proxmity to Vail Village and, frort door access to three of the Town's free
bus routes suggests 30% less than rypical srte tnp generation durrng the AM and PNI commute
penods.
Peak period operation (level of service) ofeach access approach wrll renain in the same short
delay range (LOS B) as the exrstirtg day care/I4a Bell access drive. Left tums from North
Frontage Road wrll experience little or no delay in most cases. Left tum storage lanes are needed
at each access dnve per State Highway Access Code criteria. The new center lane can be stnped
as a Two Way Left Tum Lane. As such, the rmprovement will faciirtate left tums (including
Town buses) out ofthe residential site, Right tum deceleratron or acceleration lanes are not
needed per the Codo.
The volume of prqect traffic added to North Frontage Road will not cause a change rn two-lane
35 to 40 mph hrgbway operation. The road wrll continue to opelate m the LOS C nnge, with PM
operation nearing the low end of the of the LOS D servrce range.
The nearby I-70 M4n Vail north roundabout urtersect;on has considerable reserve capaclty to
readrly accommodate traffic added by thts project.
TDA
Appendix A
Existing and Buildout (2003)
Level of Service Worksheets, AM & PM Peak Ilours
TDA
H CM U nsignalized I ntersectitCapacity Analysis
2: North Frontage Rd. & Day Care DW 2J11/2002
j <- \ !J
Lane Configurations
Sign Control
Grade
Volume (veh/h)
Peak Hour Factor
Hourly flow rate (veh/h)
Pedestrians
Lane Width (ft)
Walking Speed (fUs)
Percent Blockage
Right tum flare (veh)
Median type
Median storage veh)
vC, conflicting volume
vC1, stage 1 confvol
vC2, stage 2 confvol
tC, single (s)
tC, 2 stage (s)
tF (s)
p0 queue free %
cM capacity (veh/h)
Free Free
1Yo O%
222 157
u.Yz u.Yz
241 171
Stop
0%o
28917
0.92 0.92 0.92
30 10 18
None
447
6.4
0.92
10
201
4.1
2.2
99
1371
186
o.z
98 98565 856
Volume Total
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach Delay (s)
Approach LOS
25't 201
10 0030
't371 1700
0.01 0.12100.4 0.0
A0.4 0.0
10 181000 18565 856
0.02 0.021211.5 9.3BA
10.1
B
Average Delay
I ntersection Capacity Utilization ICU Level of Service
u.o
25.2o/o
Baseline
tdadensmal-1t51
Synchro 5 Light Report
Existing AM Peak Hour
HCM Unsignalized
2: North Frontage
t ntersectitapacity Analysis
Rd. & Dav Care DW a|1noo2
+\lJ
Lane Configurations
Sign Control
Grade
Volume (veh/h)
Peak Hour Factor
Hourly flow rate (veh/h)
Pedestrians
Lane Width (ft)
Walking Speed (fUs)
Percent Blockage
Right turn flare (veh)
Median type
Median storage veh)
vC, conflicting volume
vC1, stage 1 conf vol
vC2, stage 2 conf vol
tC, single (s)
tC, 2 stage (s)
tF (s)
p0 queue free %
cM capacity (veh/h)
.t ?'Free Free
0o/o 0%
14 200 314
0.92 0.92 0.92
15 217 341
\il
Stop
0o/o6 15 8
0.92 0.92 0.927't69
None
592
6.4
348
4.1
2.2
1211
o.z
?( 11
463 698
Volume Total
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach Delay (s)
Approach LOS
233 348
lE n
n7
1211 1700
0.01 0.20100.6 0.0
A0.6 0.0
16009463 698
0.04 0 01
a1
13.1 10.2
BB
12.1
B
Average Delay
lnterseciion Caoacitv Utilization
0.7
28.4%ICU Level of Service
Baseline
tdadensmal-1t51
Synchro 5 Light Report
Existino PM Peak Hour
H CM U nsig nalized I ntersectitCapacity Analysis
1: North Frontage Rd. & Apartment DW ?J11n002
\ IJ
Lane Configurations
Sign Control
Grade
Volume (veh/h) 7
Peak Hour Factor 0.92
Hourly flow rate (veh/h) 8
Pedestnans
Lane Width (ft)
Walking Speed (fUs)
Percent Blockage
Right tum flare (veh)
Median type
Median storage veh)
vC, conflicting volume 193
vCl , siage 1 conf vol
vC2, stage 2 conf vol
tC, single (s)
tC, 2 stage (s)
tF (s)
p0 queue free %
cM capacity (veh/h)
4.4
2.5
99
tzt+
\r
Stop
0o/o
82425
0.92 0.92 0.9292627
None
467
o.o
-f t'Free Free
0% QYo242 170
0.92 0.92263 185
189
3.6 3.4
95 97
526 828
Voiume Total
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach Delay (s)
Approach LOS
271 19380no
1214 1700
0.01 0.11
000.3 0.0
0.3 0.0
26 27260027526 828
0.05 0.034312.2 9.5BA
10.8
B
Average Delay
I ntersection Capacity Utilization ICU Level of Service
1.3
25.9Yo
Buildout
B Baldgya
tdadensmal-1t51
Synchro 5 Light RePort
2003 AM Peak Hour Total Traffic
HC M U nsig nal ized I nterse.til C"p".ity Analysis
.2: North Frontage Rd. & Day Care DW 2t11t2002
I\\)
Lane Configurations
Sign Control
Grade
Volume (veh/h)
Peak Hour Factor
Hourly flow rate (veh/h)
Pedestrians
Lane Width (ft)
Walking Speed (fUs)
Percent Blockage
Right tum flare (veh)
Median type
Median storage veh)
vC, conflicting volume
vC1 , stage 'l conf vol
vC2, stage 2 conf vol
tC, single (s)
tC, 2 stage (s)
tF (s)
p0 queue free 7o
cM capacity (veh/h)
-t 1'Free Free
0o/o 0o/o
?65 156
nna n..\av.Jz v.J1
288 170
\r
Stop
Qo/o
31 12 22
u.Yz v.Yz v.Jzu '13 24
None
496
6.4
10
0.92
11
203
A1
2.2
99
1368
186
6.2
3.5 3.3
98 97529 856
Volume Total
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach Delay (s)
Approach LOS
I ntersection Caoacitv Utilization
299 20311 0034
1368 't 700
0.01 0.1210
0.3 0.0
A0.3 0.0
13 24130024529 856
0.02 0.03
2212.0 9.3BA
10.3
B
0.9
28.5o/o ICU Level of Service
Average Delay
Buildout
B Baldgya
tdadensmal-it51
Synchro 5 Light Report
2003 AM Peak Hour Total Traffic
HCM Unsignalized Intersectiotapacity Analysis
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@BFSEB']"tifi BI=:WBR:I SB_ffijSBFGFT.-:.----'-ffi r.rT=-;rT,Fsffi 1
Lane Configurations .t Tt \ f
Stop
0o/o
1e
0.92
14
Sign ConEol
Grade
Free Free
0% 0%
Volume (veh/h) 23 217 350
Peak Hour Factor 0.92 0.92 0.92
Houriy flow rate (veh/h) 25 236 380
Pedestrians
Lane Width (ft)
Walking Speed (fUs)
Percent Blockage
Right turn flare (veh)
Median type
Median storage veh)
vC, conflicting volume
vCl, stage 1 conf vol
vC2, stage 2 conf vol
tC, single (s)
tC, 2 stage (s)
tF (s)
p0 queue free %
cM capacity (veh/h)
24
U.YZ
26
t?
0.92
14
None
407
Z+. J
2.3
98
1081
6.4
3.5
98
ou6375
Volume Totial
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach Delay (s)
Approach LOS
Intersection Capacity Utilization
261 407
250
uzo
1081 1700
0.02 0.24
zv
1.0 0.0
A1.0 0.0
14 14
140014375 608
0.04 0.0232
15.0 11.1
BB
13.0
B
0.9
31 .6o/o ICU Level of Service
Average Delay
Buildout
B Baldgya
tdadensmal-1t5.1
Synchro 5 Light RePort
2003 PM Peak Hour Total Traffic
t ntersectiotapacity AnalysisHCM Unsignalized
2: North F Rd. & Dav Care DW 2t11,2042
\ \J
Lane Configurations
Sign Control
Grade
Volume (veh/h)
Peak Hour Factor
Hourly flow rate (veh/h)
Pedestrians
Lane Width (ft)
Walking Speed (fUs)
Percent Blockage
Right tum flare (veh)
Median type
Median storage veh)
vC, conflicting volume
vC'1 , stage 1 conf vol
vC2, stage 2 conf vol
tC, single (s)
tC, 2 stage (s)
tF (s)
p0 queue free %
cM capacity (veh/h)
-T
Free
0o/o
204
U.YZ
222
t
Free
0o/o
362
v.Jz
11
u-32
12
\
Stop
0%o
27
V.JL
29
1A
0.92
15
zo
U.Jz'
26
AAE
4.1
2.2
98
1153
None
b/6
o.+o.z
93 98
408 650
Volume Total
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach Delay (s)
Approach LOS
Average Delay
Intersection Capacity Utilization ICU Level of Service
250 405
280012
1153 1700
0.02 0.24
a/1z-v1.1 0.0
1.1 0.0
29
29
408
0.07
14.5
B
13.2
B
1.2
32.1Yo
''!5
U
1E
650
0.02
2
10.7
B
Buildout
B Baldgya
tdadensmal-1t51
Synchro 5 Light Repolt
2003 PM Peak Hour Total Traffic
PEAK LAND CONSULTANTS, INC.
PEAK LAND SURVEYING, INC.
PEAK CIVIL ENGINEERING, INC,
970-476-8644 . FM 97O476-a616 . 1000 UON's RIDGE LOOP . VAIL. CO 81657
970-726-3232 . FAx 970-726-4343 . 78436 US HwY 40. PO. BOX | 680 . wlNlER PARK. CO 80482
Memo
March4,2002
To: Allison Ochs, TOV Planning
From: Mark Tarrall, Peak Civil Engineering, Inc.
Re: Middle Creek Developmen! Response to ToV comments
The following are responses to the mmments from Tom Kassmel addressed to Allison
Ochs, dated February 26,2002.
Comment / - All frontage road improvements will be finalized during the CDOT Access
Permit Application stage. cDor requirements will be adhered too, including any
guardrail requirements.
cornment 2 - Grading has been modified and maximum retaining wall height is 6'.
Comment 7 & 8 - Flowlines have been placed in drainage swales behind Buildings C & E
for easier swale identification. A stom sewer and concrete pan has been added to the
plans to deal with the concentrated flow from the proposed drainage swales. These
improvements are identified on the revised grading and drainage plan included with this
submittal.
Comment 9 - Frontage road improvements including lane transitions will be finalized
during the cDor access permit application process. cDor requirements will be
adhered to during final design process.
comment /0 - Maintenance of the east sand oil separators is proposed to be through
standard 'septic/vacuum kucks.' It is proposed that the truck park on the access drive
and a hose extended to sand oil haps during periods when sediment removal is required.
This should not be a frequent process, therefore disturbance to site circulation should be
Irunor.
comment 11 - East sand oil separator has been moved out of the pedestrian path to its
north side. Storm manholes have been moved out of sidewalks.
Comment /5 - The ERWSD has reviewed the domestic water and sewer requirements for
the proposed development. They have stated the development can be accommodated
with their existing systems. I have attached two letters from the ERwsD regarding this.
Fireflow requirements will be analyzed during the fire protection design process. All
measures necessary to ensure that required fireflow is available will be provided.
comrnent 19 - The upper and lower Fire Turnarounds were designed based upon turning
requirements submitted to Peak Civil Engineering from the Town ofVail Fire
Deparfinent. I have included the Engine (Tov Engine 4l l) design requirements trat
were submitted. Additionally, I have attached sheets showing the tunring movem€nts of
the design vehicle. Also included is a sheet showing turning moveme.nts for the east e,nd
parking spaces.
Please contact me, should you have any questions or need additional information.
PEAK LAND CONSULTAIIITS, !NC. 97o-476-a644 . F \x 97047qa6t 6 . 1000 LION'5 RIDGE LooP . VAIL, co I | 6s7
PEAK LAND SURVEYING, lNC. /PF K CIVIL ENGINEERING. lNC. s7o-726i232. FAx 97Gi264343 . 7a436 us Hwy 40. po.8ox 1680 ' wr.fiER PARK co 80482
HCM Unsignalized Intersection Capacity Analysis
2: North Frontage Rd. & DaY tg1g-Q!A/?,11t2002
\ lJ
Lane Configurations
Sign Control
Grade
Volume (veh/h)
Peak Hour Factor
Hourly flow rate (veh/h)
Pedestrians
Lane Width (ft)
Walking Speed (fi/s)
Percent Blockage
Right turn flare (veh)
Median type
Median storage veh)
vC, conflicting volume
vCl, stage 1 conf vol
vC2, stage 2 conf vol
tC, single (s)
tC, 2 stage (s)
tF (s)
p0 queue free % :
cM capacity (veh/h)
zo
0.92
28
405
4.1
2.2
98
1153
Volume Total
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach DelaY (s)
Approach LOS
lrit6igecfioff
Average DelaY
lntersection Capacity Utilization
. Stop
o%
11 27 14
0.92 0.92 0.92
'12 29 15
-t
Free
o%
204
U.YZ
222
T.
Free
o%
362
0.92
393
None
678 399
6.4 6.2
3.5 3.393 98408 650
250
28
0
1153
0.02
z
1.'l
A
1.1
405
0
12
1700
0.24
0
0.0
0.0
ZJ
29
0
408
0.07
6
14.5
B
13.2
B
15
0
,IA
650
0.02
2
10.7
B
1.2
32j%ICU Level of Service
Buildout
B Baldgya
tdadensmalltSl
Synchro 5 Light RePort
2OO3 PM Peak Hour Total Traffic
FEBRUARY 2OO2
@
COUGHLIN & CONIPANY INC.
lnvestment Bankers Since 1932
140 East 19th Avenue, Suite 700
Denver, CO 80203- 1035
303-863- 1900
303-863-7100 FAX
February 15,2002
Ms. Allison Ochs
Planning Department
Town of Vail
75 South Frontage Road
Vail. CO 81657
Dear Allison:
Attached please find the revised Development PIan submittal for Middle Creek Village.
Our team has been working diligently over the last several weeks in an attempt to address
previous comments that we have received from Town of Vail staff, the Planing and
Environmental Commission, and the Design Review Board. We are very proud of the result and
think that have a design that incorporates these suggestions and requirements - and is still
compatible with an overall budget that provides housing that is affordable to Vail's workforce.
This has been an extraordinarily difficult challenge, but we feel that we have anived at a result
that hopefully all parties can enthusiastically support.
This submittal retains much of the philosophy of earlier submittals that you and the PEC have
previously reviewed. A few highlights of the current design are:
l) Parking - We have maintained that required 243 parking spaces for the residential
portion ofthe project, increased the dedicated parking for the Early Learning
Center to 20 spaces, and have added two additional "floater" spaces for a total of
265 parking spaces at Middle Creek. This design reflects a much smaller portion
of tandem spaccs than previous submittals (apprcximately 20 ferver tandern
spaces) while maintaining almost 600lo covered spaces.
2) 407o Slopes - We do not encroach on40yo slopes anywhere.
3) Exterior Architecture and Roof Lines - We have taken the design a major step
forward and are submitting a very articulated design, with much more variety and
complexity in the roof forms.
4) Hazarll Mitigation and Traffic Analysis - We have worked closely with Greg
Hall throughout the last 45 days and he has had several conversations directly
with our consultants. The result is that we have reached conclusions and designs
that Greg endorses.
5) Exterior Recreation - We have added exterior recreation and common areas,
including a horse shoe pit, flat area for basketball or other outside sports activities,
and a BBQipicnic area.
@
COUGHLIN & COMPANY INC.
Investmerrt Barrkers Since 1932
Furthermore, we are extremely comfortable with site circulation, organization, and retaining. We
have endeavored to recess buildings into the natural grades as much as possible in an effort to
utilize the buildings for retainage and to compress the overall height ofthe project so that it
blends, as much as possible, with the natural slope.
We have also worked closely with numerous parties as we have developed this submittal. The
Childhood Education Center is the result of meetings and discussions with Mo, Angela, and one
of their parents who is an architect in Vail and is serving as a pro bono consultant for the Early
Leaming Center. The Vail Local Housing Authority has been a party to two separate
presentations as we have developed this revised submission, and we have incorporated changes
to the design based on suggestions from their Board. And importantly, we have kept Shaw
Construction involved throughout so that the design remains within the parameters of what can
be economically supported by the below-market rent structure.
We are anxious to respond to any comments or questions that you might have. It is imperative to
us that we keep this ball rolling so that we can close on the required financing and take advantage
of a relatively attractive construction market. We know that we will need the enthusiastic
support of staff in front of PEC to win approval; we have tried hard to win that support through
this submission. We will, of course, continue to be available to you as the need dictates.
Thanks for your on-going assistance.
Sincerelv.
H*f;-'s-
Executive Vice President
cc: Nina Timm
Russ Forrest
ODELL ARCHITECTS
Name of Project:
Location:
Applicable Gode:
Gode Gheck by:
Project Overview
ITEM
Middle Creek O,A, Project Number:0120
Vail, Colorado
1997 UBC
Tony Nutsch Date: Februarv 11,2002
SEGTION
Occupancy Classification :
Principal Occupancy:
Others: Parking
Community Space
Day Care
U-1 (if <3,000 sf) ifover 3,000 sq.ft. area separatron
will be provided
Chapter 3
It- t Table 3-A
Table 3-A
Table 3-A
E-3 Table 3-A
Occupancy Separation Required
Occupancy to
R-1
Occupancy
TI 1
Hours
One (1) - hour Table 3-B
R-1 -+ One (1) - hour Table 3-Bto
to
to
-)
--)
Accessibility
At Building'A'Accessible Units 6-units
At Building'B'Accessible Units 6-units
Total 12-units
12 -units I 142-total units = 8.5 7o units are accessible
ODELL ARCI{ITECTS, P. C.
Architecrure Planning Inleriors
Building'A'
Occupancy Classification:Chapter 3
Principal Occupancy: R- l Table 3-A
Others: Parking U-l (if <3,000 sf) if over 3,000 sq.ft. area separation Table 3-A
will be provided
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
R-1 to U- 1 -+ One ( 1) - hour Table 3-B
to
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Parking (U-1 Occupancy)
Total Floor Area - Bldg. 'A'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
NA Section 505.3
Type V-lhr.Table 5-B
10.500 sq. ft. Table 5-B
10,500 sq. ft.
lf adjacent to open area on three sides: > 40 feet(100%) 2l,000sq.ft. Section 505.1.2
Section 505.1.1
Section 505.1.3
42,000 sq. ft.
17,930 sq. ft.
6,644 sq. ft.
24,574 sq. ft.
Fifty (50) Table 5-B
Three (3) Table 5-B
48'-6"
Four (4) -increased one story for Section 506
fullv sorinkled
ODELL ARc H tTEcTs, P,C.
Architecture Planning Interiors
Page2ofll H:\Projectso I 20\Code Review\lvlCk_Code_Revterv.doc
Building'B'
Occupancy Glassification:
Principal Occupancy: R-l
Others:
Community Space B
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
to B -+ One (1) - hour
Chapter 3
Table 3-A
Table 3-A
R-'1 Table 3-B
to
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled. (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Comm. Rms. (B Occupancy)
Total Floor Area - Bldg. 'B'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-lhr.Table 5-B
10,500 sq. ft. Table 5-B
10,500 sq. ft.
NA Section 505.1
Section505.l.l
Section 505.1.2
Section 505. 1 .3
21,000 sq. ft.
9.417 sq. ft.
3,262 sq. ft.
12,679 sq. ft.
Fifty (50) Table 5-B
Three (3) Table 5-B
46'-6"
Four (4) -increased one story for Section 506
fully sprinkled
ODE LL ARcHITEcTS, P.C.
Architecture Plann ing Interrors
Page3ofll H: \Projects\0 | 20\Code Review\.MCk_Code_Revre!v.doc
Building'D-E'
Occupancy Classif ication :Chapter 3
Principal Occupancy: R-1 Table 3-A
Others: Parking U-1 (if<3,000 sf) ifover 3,000 sq.ft. area separation Table 3-A
will be provided
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
t\.- |to U-1 -+ One (1) - hour Table 3-B
to
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Parking (U-1 Occupancy)
Total Floor Area - Bldg. 'D-E'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V- I hr.Table 5-B
10,500 sq. ft. Table 5-B
10,500 sq. ft.
NA Section 505.3
lf adjacent to open area on two sides: (26- 20 fee0 * 1.25o/o = (7 5%) Sectron 505. I . I
* )t onn cn ft = I <7i "- fir.J/J rg. rr.
Sectron 505.1 .2
Section 505. I .3
16.333 sq. ft.
5.902 sq. ft
22,235 sq. tt.
Fifry (50) Table 5-B
Three (3) Table 5-B
45'-6"
Four (4) -increased one story for Section 506
fullv sorinkled
ODELL ARcHrrEcrs, P. C.
Architecture Planning lnteriors
Pag€5ofll H:\Projects\O12o\Cod€ R€view\MCk Code_Revie!v.doc
Building'F'
Occupancy Classification:Chapter 3
Principal Occupancy: R- l Table 3-A
Others: Parking U-1 (if <3,000 sf) ifover 3,000 sq.ft. area separation Table 3-A
will be provided
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
R-1 to U- I -+ One ( 1) - hour Table i-B
to
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Parking (U-1 Occupancy)
Total Floor Area - Bldg. 'F'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-1hLr.Table 5-B
10,500 sq. ft. Table 5-B
10,500 sq. fi.
NA Section 505.3
Section 505.1.1
Section 505. 1 .2
Section 505. 1 .3
21,000 sq. ft.
4,396 sq. ft.
5.897 sq.ft.
10.293 sq. ft.
Fifty (50) Table 5-B
Three (3) Table 5-B
49'-0"
Four (4) -increased one story for Section 506
tully sprinkled
ODELL ARc H lrEcrs, P.C.
Architecture Planning Inte riors
Page6ofll H:\Prqects\o I 20\Code Review.MCk-Code-R€vi€!\.doc
Building'G'
Occupancy Classification:Chapter 3
Principal Occupancy: R-l Table 3-A
Others: Parking U-l (if <3,000 sf) if over 3,000 sq.ft. area separation Table 3-A
will be provided
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
R-1 to U-l -+ One (1) - hour Table 3-B
to
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Parking (U-1 Occupancy)
Total Floor Area - Bldg. 'G'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-lhr.Table 5-B
10,500 sq. ft. Table 5-B
10,500 sq. ft.
NA Section 505.3
Section 505.1.1
Section 505. 1.2
Section 505. L3
21,000 sq. ft.
I9,063 sq. ft.
NA
19,063 sq. ft.
Fifty (50) Table 5-B
Three (3) Table 5-B
Four (4) -increased one story for Section 506
fully sprinkled
ODELL ARCHITECTS, P.C.
Archrte cture Planning Interiors
PageTofll H:\Prcjects\o I 20\Code Re\.rew\N,ICk_Code_Review.doc
Building'H'
Occupancy Classification:Chapter 3
Principal Occupancy: R-1 Table 3-A
Others: Parking U-l (if <3,000 sf) ifover 3,000 sq.ft. area separation Table 3-A
will be provided
Occupancy Separation Required
Occupancy to Occupancy -+ Hours
ta- I to U-l -+ One (1) - hotu Table 3-B
to
Construction Type:Type V-lhr.Table 5-B
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
Area of Living Units (R-1 Occupancy)
Area of Parking (U-1 Occupancy)
Total Floor Area - Bldg. 'H'
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
10,500 sq. ft. Table 5-B
10,500 sq. ft.
NA Section 505.3
Section 505.1.I
Section 505. 1 ,2
Section 505,1.3
21,000 sq. ft.
19,063 sq. ft.
NA
19.063 sq. ft.
Fifry (50) Table 5-B
Three (3) Table 5-B
4',7',-0''
Four (4) -increased one story for Section 506
fully sprinkled
ODELL ARCHrrEcrs, P.C.
Architecture Planning ln teriors
PageEolll H:\Projects\01 20\Code Review\MCk_Code_R€vi€w.doc
Early Learning Genter
Occupancy Classif ication:Chapter 3
Principal Occupancy: E-3 Table 3-A
Occupancy Separation Required -none required
Occupancy to Occupancy -+ Hours
Table l-B
Table,l-B
to
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled: (use for add'l story)
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
1"t Floor Area (E-3 Occupancy)
2nd Floor Area (E-3 Occupancy)
Total Floor Area - Early Learning Center
Maximurn Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-N Table 5-B
9,100 sq. ft. Table 5-B
NA
NA Section 505.3
Section 505. l. 1
Section 505. I .2
Section 505. 1.3
9,100 sq. ft.
3,811 sq. ft.
1.371 sq. ft.
5,182 sq. ft.
Forty (40) Table 5-B
One ( 1) Table 5-B
28'-0"
Two (2) -increased one story for fully Section 506
sorirkled
ODE LL ARCHirEcrs, P.C.
Architecrure Plrnning In re riors
Page9oill H:\P!oJects\0 I 20\Code Review\MCk-Code_Revierv.doc
Lower South Parking Garage
Occupancy Classification:Chapter 3
Principal Occupancy: U-l Table 3-A
Occupancy Separation Required -none required
Occupancy to Occupancy -+ Hours
Table 3-B
Table 3-B
to
Construction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled:
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
1" Floor Area (U-1 Occupancy)
Total Floor Area - Lower So. Parking
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-N Table 5-B
9,100 sq. ft. Table 5-B
NA
NA Section 505.3
Section 505.1 .1
Section 505.1.2
Section 505. 1.3
9,100 sq. ft.
2,996 sq. ft.
2.996 sq. ft.
Forry (40) Table 5-B
One ( 1) Table 5-B
22',-6"
One (l)
ODELL A RC H rr Ecrs, P.C.
Arc hitecture Planning Inleriors
Page 10 of l l H:\?rojec6\0120\Code Revrer,v\MCk Code_Revlew dcc
Upper North Parking Garage
Occupancy Classification:Chapter 3
Principal Occupancy: U-l Table 3-A
Occupancy Separation Required -none required
Occupancy to Occupancy -+ Hours
Table 3-B
Table 3-B
to
Gonstruction Type:
Maximum Allowable Basic Floor Area:
lf over one story: (2x)
lf Sprinkled:
lf adjacent to open area on two sides:
lf adjacent to open area on three sides:
lf adjacent to open area on all sides:
Total Allowable Floor Area
1't Floor Area (U-1 Occupancy)
Total Floor Area - Upper No. Parking
Maximum Allowable Height:
Feet:
Stories:
Building Height:
Feet:
Stories:
Type V-N Table 5-B
9,100 sq. ft. Table 5-B
NA
NA Section 505.3
Section 505. l. I
Section 505.1.2
Section 505. 1.3
9,100 sq. ft.
2,439 sq. ft.
2,439 sq. ft.
Forty (a0) Table 5-B
One (l) Table 5-B
2r'-0"
One ( l)
ODELL ARcHrrEcrs, P. C.
Architecture Plan nins ln teriors
Pag. ll ofll H:',Projects O I 2o\Code Review\l\,ICk_Code_R€view.doc
A2/61/2662 16:07
a
3036767t62 ODELL ARCHITECT
\o
IDELL ARCIttTECTS, P,C
Nlison Ochc
PAGE OTIT6
Ilf
Dete:
To:
Re
From
City ofveil Ihpt of Cmrnity Dcvclo@ldt
75 Frorilrge Road
r VaiL Colondo 81657,.ti
\
{,l
i.m.rkt
Phorc: 9?0.479.2169
Ptone: 97O.a79.2452
:
j Phonc:301-670,5980
I Fax Phone:3Q3.Oo.7162
Atlisotr - Milc has rcled me to fonard tbese to )'ou ad Orcg Hall for yoru
rcview, Thcy fill atro bc a put of tbo subnitbl for PEC approvall*c
i
r{
i
Fdnnry I, lll02
OdellAlchibcti P,C,
32065 Cestle Coru( Suir. 150
Bvcrgreen, Colrado 80439
For You Rcvicw I Ploase Conuncnt f; Urgcnt
62/A1128B2 L6tg7 3438767L62 ODELL ARCHITECT PAGE A2/16
P.2
Iaflr4? 30, ?002
Mchrd (loughlir & Cocrpaqy
A$u Mjchacl Co.rghtin i
1.f0E$t lfth AvNrue Sprte?OO
Dewer, (blonodc 30203
Subject Qerhnc{rds Mitigation - Additioml Infoimdion
Ivtiddle Creek Vrlla8e ar lhil Dwelopmcru
!'ail, C<,lorado
'JobNo. 14613 I
Mr. Qdrgblin, : .
I
As dlrcuqsed wilh pq at a rrrceting u thc ofrcc of Odsll fuctritcas on Iuuary 29,-2Wi..vn nc
providins additiorafinformuioaregirdingtbproposd d€btis flow hrud ntiti;ption a the r$.iec !itc.
Art Meani anrendr{ dre rn€cting; ard ifui'ing the moeing a confrr.otoc call war pleccd to Grog thll of tho
TownoiVail. I
Ari tvlears had written a lettq.to the llonri of Vail dated Jatnrary rc, nE wlrorein lc conrmcrtcd oo
propooed y',ebris tiow mitigdion me&qures a! o{nlir}cd in our latato yor dettd l)ecoq$6 13, zml- Or
iropo,?* teftff t(r Vail's mmneuts datgl Jrnrrarl' Zl, zWZ wrs rFt rwic'nsl by Art. He e.rgecsod
c5n.o.rt that a diversion .vnll inry rct adequafely Brotect tln pnopo,red.buildings, Idnce a delric f,ow
oimiler tr, that w rich ocqrred in'Bootb Cr;tk d [SSa *rU becttcp tlrc well and d*ris c':uld 0ory
soutb ro the propobat rlcvcftrprncnt Acrordingly, it is prudcrd to dcsign $rudtrcs at risk to uithdand
eitber slfitig or ttynamic loads front de,bris flow we$t3.
Prior to con$ru.oio4 we rviil wry:k with Art to/conduct field gtudier ond dwelop desigr frrces qat *iU
be providert to ire nnrcnrlal origi4eer.forincorporatiou into the.tbucilre derdgns, P<rtential cJtsttge.
inclirde ad'liticnal rpio.furccmcm in walls, courtdrlirts. and prqtecting or elimirrring windou* in eooc
areag. l-.Icr Eli of rhe nruciures will need to bs modified. lo our opiniort, tbc slnrcturcs can bc dediSnd to
mitisate fte risk iiom de.hir flows.
,,
In accord;glce wttrlsectlon 12"21-15 of tle Towrr of Vail Coclq uo slatc thot thc proposed nitigdion
can be a;compll;h& tc rndrrc* the dangcr to the public heatth, safuy, q' to popedy due to problcmr
rclarcd tc ;;co!og c sursitivity to a rcqsonable level, and thrt tlrc proprsed developnrcot will not incrpas
thc lrazard to oth'r properiy ol 3f,u6t$eq or to publio buildingq right:.of-way, rrxds, str€ds, 6ss0Nt1€tlt8,
utilitiAs, ru facilities or other p'roSrertics ofconsectiorl
OSNVER l9(lr '!Vuder o.lh Enulqvord
303.463,83 i 7
Wh.:ct Rldlc. CO 00033
Fax:303.$6l.3tzl
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lV;A(rnEh:t'l ii0:.El 6.:.65
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ENIGINEERS & GEOLOGISTS
62lgLl2ga2 3A367A7162
I
16:07rrs;45F I]IELL AROIITECT PAGE S3|IO
P.3
I D*ris Ftortl,fitignin
Job l$. lldl3
PsCa I
Plcase cdl with sny questious,
Simerely,
CHIJRCII & Ax ociates, Iuo.
,CLuz*. G,-^(*---
David A Cushrnrr, C?G.
Engineering Geo oglrt
2 Copies Seut
Faxed 3r lfchad OoE]nin al 303-8,trl-7100 r
Faxed to Art illerrs at 9706414236
1 urpy m Odcll lrchireaq P C. Attn: Lec MsJon 32065 Ca*le Cfl$t, Suito 150 Ev€rEreltl, C0 S439
Fdmdto,103{7(17162 . , j
t copy to Peaft Lrnd Cousrrlrrntg Attn: lvlrk l'analt 1000 Lim'r Ridgc Loop, Vdt, CO 81657
d'r:"ii6:[R
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ODELL ARCN{ITECT
ARI !'lErrRs
PAGE 64/LA
P.+
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Jrnrrry 30. zogl
MrdrdCo{Nhi Corrn ar.am Miclrclcornhtin
laO Fetl l9:b Arrlr!, tuitt 700
tx'lwcr. Cotorrdo tOZ0l
Suhjcrr: f;rolu"rlfr Mittdfu$ - Addiisl latrinrribrrm 6dh Creh r/-lLgr n VJI ltar,GloprlcfiVril.Colfro
. troir No. l{61t. i
f}!. Co$lblir,
Ac dirqnee l wrth you rt r mctinf I thc oflcl of 0dr[ ilnhhcatr on Jrrnrqr !fi l00l, rc ucpmridiq r{iirinrt i$rmrrionqirdt"gr,.-p,"pf,iiGr to, rxrarO ridgrioa at,thr ab.ice litoAn '.'! .t.$dsd rhc oouicg
'rc*riru #mi&* r coniiacc.rtt *",ri,ocd ,o d;{rriri orrr,.To*r of Vril.
An f,terr hrd *irri , lacr o tlrc Tor,,n of V1it ryt ittwt1td. lgqz,rvbrin he crrncnd orr.f4{ $ilt_nolrr nltllioa ncuitrrrnrrlined h qrlarropr eUOrurrtc rt, r00t. tlrr$poruc rolel ro vri|r {on.$rtr drd raryr !,, 2001 ..,n |r0( m;ca b, Arr lro lrflr*dcrroc#! tlst s dvcrrioa,rvdl mev_ not rrrqqrdi prru rrc Fo?oald buildlng'rine r cntoir no,rrinil* ro rh$ \rhicb otnrtod xr Feblsedr:ra t9l{ €rH Lr*q tra rrrl-riJ J*rb t'ru n,*s$rl m ilh ropond dc'€bF!.il. rccditrv. il h Frdd u nigr rmr.tmt r i* ro ,r,it\rird
d*tcr *nx r* dy'*;nii lqndr n'om d.hir ltorr-cratrr.
frirx ro co.o nrtio:1 ur wilr rvorl vrn,rrr r sudra ficu rudirr rad drrchp rr"lfurr ftrcu drc wrlrbr pnrvided u r'ln: rrusrnl crUfucr. &rr ;*srponrion iDto {ta *rtcfrl- rhiigr. -foratlf cUrogo
incntdt xldititrng r*cft$clractrt in rrtll ografurq ltd prolrrirrg or cllnilfrtu -irrdoqr io grc
aair llrr 0l of thc lrudqtrrr trin o*d b bc nulifioA. n *ir qi**, th rrdrllr crn b. &ierrd orhnu1€ 6a tuk hom dcbr0 frowg
h rrroidrnir with $qrioa lt-ll-lt of fio foln of Vril C.ro{g rt rdr iltr fu fpord ,miglilrop^{ rcot'pttga tg }pct tlu &r1q to-il! puDft Mtlt nfcrg. trr ro pcprry iun to p",riforo.Jl.r|cd (o SU,loUtc rtnui|iiy ro r rtrmmblc hrol. rrd Ort d'r pmporrd ddv.h,poan riU ,nd ioerr|rcq.l.our" T Tly FlFery or rfir'!*! or to prttic hrldlry. ngfit*of,wry, ,!.d( n!dl, irFrtloraulultl.t, Ot Ucilllltt ('.; hs t lol!|li.t ofco00ludb|r'
.r [rA{rs, '''{'i,:,.- 'rt' ;*'t' ") | ., * oJJ(r*td 1-^t,1-.ifrriK
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A2/8L12662 16:67 3636767T62 ODELL ARCHITECT PAGE 651L6
Eferrrr*npult
ffi
January 28, 2002
Otis OddL allt
Principal
OdeU Architects
32065 Castlc Court, Suite 150
Evergrecn, Colorado 80439
Dear Mr. Odell,
This lctter describcs the results of the noire analycis thrt Hankrrd Ennironmental conductcd for the
Middle Crcek Affordablc Houeing Project in Vail, Coltrsdo. Thc puqpose of this study was to compar€
the calculated ovcrall inlerior noise lwels for tbe proposed structures io thc U.S. Departnrent of Housing
and Urban Developmcnt (HIJD) inrerior noirc goal of a5 dE(A),
To auswer this qucstion, tbe .xistitrg aoisc lwels, Intersbte 70 $.70) traffic volumes and speeds werc
tnoasrled 8t four locations on thc project aitc. Thcse levelg were thco adjtsted to make than
reprcscotative of pcak-hortr traffic vohmcr aad qccds on I-70. Ncxt, the edjustcd noire lcvcls were uscd
to prEdict cxtcrior noisc lerrelc at thc fagadc of thc proposcd stuctures facing I-70. Finally, lcnowing tlre
extcrior noise levcls and ruing sUndrd bruilding Eatccicls for crtcrior walls, windowr and iloors, G
interior ooise levels wctt calculatcd rnd comprred to thc HI.JD noicc goal of a5 ffi(A). The following
providcs the dctails of each stcp fotlowed hy a r-'nmgy of the complite analyris.
Existitrg Noiie Lnds
i
;i,xfuting aoise levels c,em measutcd * thc four locados rhonn as Ml tbrough M4 h Figr:re l. Thesc
measulemeots werE conductcd using a Nqsoric6 rylc I 14 octrvc Band soud Inel Metcr (sLM),
whicb meets thc Al.lSI Tpc I ryecificationr. The sLM nas calibEtcd prior to each of the four
measursnef,B and r+cbecked aftct oapb meunrtmcnt. The ncasremetrt locatjons werp selected to
coincide (where possible) with future building looationc, In addition to thc noirc lanels, the traflrc
volumes and spccds along I-70 wert monitorcd as wcll. Thc pupose of rncesrring the traffic volumcs
and speeds is to allow for adjusbents to thc rrasurcd qoise lcvils t simulate peok-horrr (oudcst hour)
noisc lffels.
Figure I and Teble 1 ehow thc overall mcssured noice lcivcl for each rncasurnent location. Thc
measurod levels rangcd ftom 63 to 68 dB(A). lbc tsrffic volumcs dotrg I-?0 during the measur@qrts
ranged from 27% to 37% lower than peak-horu (loudest hour) volr.nncs provided by cDoT. To
compensate for this, the noise levels wcte increased by 1,2 to 2.0 dB(A), as applicable. convcrscly, the
average traffic specds dwing thc measureincnts were rbout 7 mph fastcr (louder) than peak-fisu. 2ys6gg
haffic speeds pet CDOT haffic studies. To compcnsstc for mc;iurirg noise lcvels duiing fastcr hafiJ
spceds' all the mcasutcd noise lcvclg werc dccrcsscd by 0.5 dB(A). lbc owrall adjustncnte ro the
rDcr$ured noise leveh w€re i.ucrcnacs of 0.7 to L5 dB(A). thus, thc qisting peak-hoqr noise lcvels for
these measurement locatioas raugcd. ftom about 63 to 69 dB(A). Tlcse aajrisird levcls are shown in
Figure t and Tablc l.
l03ErrtSimpronStrcct r LrfeycttgColorrdo t0026
phonc (303) 66&0617 r fu (303) 6,6&1053 r rrw.henkrrdinc.com
a2/AI/2492 L6.47 3A36767162 ODELL ARCHITECT PAGE 68/16
Using thc pcak'hour aoise levels, ethrior noirc lcvph al the tont figrdc (facing I-?0) ofthe proirorcd
structulEs were cslculated (See Figure 2 and Table 2). Bach proposrd sfiucturc, wac asdgnedl building
Ietter (two of thc sfruchrtes arc plrking garageE qrhioh were not rnslyood), To be cooaan ative, noisc
Iarels werc calculated for the highcst occupicd floor ofeech proposed struchue, which tlpicelly will be
the loudest. Tbese lwcls were calcul*ed by applying a digtrroce corcction to account foi the proposed
strncirc bcing closcr or farther away aor! I-7O'thn thc nspectivc measurcorcot locatiou. eairitiomrrn
an clcvatio contctioa wa1 aplilicd to accout fs thc reduccd sound abrorption due to thc pnopoaed
gucnr- 9s b9lnq clcvrtod highcr lhan the mcasrnsrncot locatiou. Tbc prediitcd crarior noiL kvcls rangc
from 81to 69 dB(A). as shown h Tablc 2
TABIa I
E)OSTINo NoIsE I,8VEIJ - IvGAst'RED AI{D h,dK-HoT,R
Mcoguroment
Iocation
Measutrd
Noiso Lcvol
(il(4)
Overall
Noise Icvel
Adjustnout
(B(A))
Pealc-Hour
NoiseLwel
(dB(A))
MI 62.7 +0.7 61.4
tvl2 67.5 + 1.5 69.0
M3 6t.8 + 1.5 6.3
M4 62.s + 1.5 64.0
$r**ri]R PEAK.HO* *OO'
"ffi''r^O STRUCTUR.E. CALCI,JLATED
Proposed Stnrct$re
(*)
PeakJIoru
Exbrior Noise Level
(dB(A)
Multi-Family Rcsi&rnce (A)66
Multi-Frmily Rcridcoce @)69
Multi-Fanily Rcsidcrrce (C)68
Multi-Frmily Reridcacc (E)67
Multi-Frmily ReaideDcc (F)67
Multi$arnily Residcoce (G)61
Multi-Family Residence (H)61
Multi-Frmily Reridancc (I)67
Dayurc Center (K)&
Iufiddle Czech lforfuble l{ousfug Intetiar Nobe H|ID Cqnpn0on paga 2
A2/Bl/2a02 16:87 3s36747L62 I]DELL ARCHITECT
Cortqtarison to the HUD Noise Goal
Proposed Strltchrc
(-)
Pcak-Horu
BxtsiorNoisc
Lcwl
(dB(A)
Srqndard Extcrior
Wr[ Constuction
Tnosrnission Lors
(dB(A)
Pcak-Hour
Interior Noisc I*vel
(dB(A)
Multi-Faruily Rcai.leoc€ (A)66 26 4A
Multi-Family Residence (B)69 26 43
Mnlti-Fanily Rcsidencc (Q 68 26 42
Multi-Frmily Residenoa @)67 26 4l
Multi-Fenily Residcnce (F)67 26 4l
Multi-Family Residcncc (G)61 26 4l
Multi-Family Rcsidencc (II)tl 26 4l
Irfnlti.Fuity Rctideoo€ 0)67 26 4l
Dsycare CEnter (K)04 26 38
Th9 U. 'Sr Deparfrcnt of Housing ondUrbuDcvclopneat (HtlD) inrcrior noisc goal of45 rIB(A) is
:"-:g*I *l:14-aver_qsc noise lever. nowcvir, rnrn sriaahes strrc thrtlhis cao be ryptied as edesrg!-bour (perk-hour) critelgn as w{l (Raf: rhe Nobe Guidebook, lts. Depttmenr o/Howing andurban Devclopmant, 1991, flt -tot1. Tabie 3, bolow, shows tnr
""rJof"t"a
iftcri;.;;il tevels for eachol ttre propoled strucqlrr! using thc shdtd cmstsucriort matcrialg describ€d abovc, which provideaboun26 dB(A) of ovcratl tnnamissio loss (Rcf. lvo& e conrorfor guiiing ^i i,antiurus rht,Lavnon N' Irtiler, BBN, 1981, ?abte f-T} hiob rhar one unrmition nude-bcre is thit;riwiadows arcopcrablebutclos€4adttatthcycovernonorttbgnlG20%oirhesxt€riorwallarca. Itcanbcreentlrat all of Oe cslculated intcrior noisc levek, uring *rndard coutmcrion methods, achieve the HgDintcrior noisc goal of bcilg at or below 45 dB(A) -
It wag agsumed that stsndard extcrior qall oochrction cooristr of a 4', cxterior wall with r/ tbickgypsum wallboard on the inridc, tA thic'k plryood on thp ouhide, and acourticatly rbsorbcnt matcrial
(i.-c-. fibeulasO looscly filling thc cavity. Standefl windows q,cre rssumcd to bG doublc pancd with a
0.2" airgap. Additionally, bec_aus€ tbe.c onilti-fanily stnrct'rcr bavc cxterior doors opoiing directly totfe o.u1ia1 .a! aoon facing I-?0 wae acstrmed. to t c- solid corc rvood (or a"ousticatty 'tirnitar matA4)that is 2'thick (or a dearsity of 8 lb/ft) md wul grrlrcrcd.
NTBTONNOISI'"UO U*O
"*O^*ffH,1O*W^rr
CONSTRUCTION. CALCULATED
PAGE A7116
tlWle Crnk Afuablc Hottsfu la.Erior NoUe HW Cn rrperrt on pagc 3
62/6t128A2 l6ig7 3A36797L62 ODELL ARCHITECT PAGE 88/74
Sumhary
Thc aoise level mca$rEm€trts and ana[nis sbow that the .propored Middle Creek Affordable Honsing
project ullachieve thc HUD irtcrior noise goat of4S dBtAiusing rtrndard ocerior unll conrrucdou.
Thc aualysis was conducted for the ftont fagrde of each poposea smcture faoing I-?0. Tbe stsndard
ctderior wall constnrction conriots of a 4" exhrior tl'alt witn tzf Uict gpsum qallbogrd on the insidc, lA
thic.k dryvood on the outsidc, and acoustieally abaorbEnt mrtErial (i.e. fiberglass) loosely frlling 0re
cavity, siandard windows cowict of doublc prncd windows with a 0.2- air gsp.
-
stErdsrd dooi, for
bose axfsri61d69rs facinq I-?0, concist of a solid corc wood (or acousticallisimilar rmteriat) door thet
is 2" thic.k (or a densiry of 8 lVf) asd is rr,cll garkelod-
Ttrough this site is nosiq thatr lbc avemge rcsidcntial neighborhood due to its proxirnity to I-70, e
rcasonable interior noise Iwal is achieveble. Mecting thc HUD requircmelrt would rcsult b atr interior
qpace that is livablc from a misc sbndpoint, brrt the higlway would be sudiblc. It should bc notcd that
this malysis was oonducted usiqg pcak-hou (loudcst-horu) tafrc conditions, whicb typically only occtrr
for a total ofabout two or thec hous per day.
Thank you for involving us with tbis project plcrce call if you liew any questio[g, or we can bc of
further assistatrce.
JcII Cerjan
Senior Fngineer
Attachmcftc: Figurcs I tnd 2
={aOnll.Cl ^Iai Vr r aa r.Ox COrr!trrte
lifiMle Craeft ffird<ible Howing Intcrior Noise H(tD Coatptbon page I
02/A7/2882 L6:O7 38367A7L62 ODELL ARCHITECT PAGE 69ILO
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JANUARY 2OO2
E2/15/24@2 O?ts! C0UGhLIN ) 3836?E?L62
0t/xo/ttz ?2.tc ral,
Monthly B,rsic Snow Removcl
laador/Barrkhoe Worl
Dunp Tru*
prrrrF Site Fee
Cinder Sprnding
N0.985 DAs
@or
,{LPINE SNOW REMOYAL & TNUCI(1/V6' LLC
P.O. BOX 250
AVON, CO A62A
(e70) 524-3462
(9V0) 524-7128
Juu.ury 30, 2001
Coughlin d; ComFury, Inc,
1408.lftl Av€w|e
Suitl 700
Dcovcr.CO t0203-10t5
DsarMr, Coughlin:
fiurk }ou for the opportrnity for Alpine snow Removal & Trucling to bjd on you
MidddCnck Projeci. We have bsen in business tbr 9 ycare in thc Vril Valley. Alpinc is
a full ssvir:c, year round company with 8 Ptow Trucks. 2 Cio&t Spruading Tnrcks' 2
Backhoe's, 4 Tmdern Durnp Truckr.
Plcasc fiod enclosed au Alpiac Saow RcnoVat COnCsct fur lour reviow. Hsrs ar€
Alpirc's crtinratcd priccs fot Middls Creelc Pmjet.
52800.00 month
S 100.00 pcr how
S 55.00perhour
S 35.00 per load
$ 100.00 per time
lfyouhave rnyfutherquostiorupleasedon'thesilatetocall, |'bankyouforyonrtimc
and considrrcion.
fiincerely,
eur"bslb&.frh*"
Pctic I.[rrbak-Whiic
Alpiao Snc,w Romovrl &'Inrclcing. LLC
\ Ci-ILJRC;H & Associeites, Inc,
INGINE=RS il GeOLC']i 3-r-S
Jan 31 U-l (- .j r ;l jI
January 3(r. ,:001
Michael OLlu:;ihiir "t Cr:ut'tan)'
Attn. ltAchael Co.rghlitl
140 East I'itir Av lnue. Sui:e 700
Denv"-r, t:riilt:,; dC N{)Zul
Subjecr:,l;er;hlzr..riis \ I iti1,re: :on - r\dditior:ai lnFonration
\l1r1die lli'eek Vi,1a{2, e at \:ail Development
\jtil" Ct'lorad:t
'!':'l: l"c' ! 4ti I i
Ivlr. i-'rJtrgrtl:tt.
As ilisc.,r:;r.eLl rriti: -vct, ar r lteeting al the ollce of Odell !'rohir:e;ts On Jaluarv 29, 2(Iil,.we are
provrcling ,rjdirio rai i$i-.n:[iiioi]. regldng the prop.rlses debr:s llcw .rrzar,l iriitii,alion at ']e subject site.
Afl \.l.rar, ari::lir:ri fie mceiing rni dt,,ltig iha neelirig a corJbre;ict' r,;all will; pl tce d to (iteg l{all of the
To'-r.i'r '-i " aii.
Ar; ;,i.:ius;:ac rrritt;l: i, l.;iijl r(:
"he'jl"rluir
of \'rail Jate'J farliar.; 1( ?CC1"r'l';reir he ccmr':]ented on
prcp'xecl i.ebl: tir:,.v iliti,.ratir.rn fiteal.iures as outl.inel in cur letter to 1cu dattd i)eccnlbct' i3. ?00l our
.rrpa na. l:ri:i i(, ''r"aii',; ;:c.rcr:rt ntS tlateC Janlian' :1. ,l00-l i),4:' rrcl rede 'veri lry An' Ile exp. ressed
concen! tirat ir diversic'n.vr.il n:ity no-, adeqrratelj' proiec! the propo'reri buildirrgs, since a <ie bris flOw
similar Lc'llilt rutitir oicr trie'l in llooth Creell. jn 198'1 coulc it''er:cp the 'vai ard de{xis could flow
south rc rhil pilj'rcsei r:le.,ei rpmeiri. .\ccordingll'. it is prudent ta C';slgn smlcf :Ies ri risk to rvithstand
eitlier: sir.r r': '>r .f i ::atli,.' io. ttls ['c tn Cebiir ilolr e"'erts.
prior lo r;,,,':,.i,i'ior .;,g rv: , rur-.:1t witir A.n lc' ,;lnitufi lierid s:r:,Jies i nrl tltrveic r desigl tbrces rhat wiLl
be J:l'c,;iilc,": ir-r tii s',.1--.tct:rl..ri etr;irt,:*r lbr itrcOrp'i::ation inlo ine lriuctul'i de;igns P':tential changes
in t,,ci. ai,:.i:ri,r:l r:eir:jilr,:cm:;:t
'1n
n'afls,. ccuntecbt'ts,, and orcrtectir'i ol elirnil'ating ''undrLv':; ur so:ne
a'eA:::. :.,{. Ll i-,itn,: Siilci li'.lS WIL! ni:e i iCr te ni'rlif iecl. ]n Or'ir t;Uini':;r, the Slnu rure s Can be designed to
miti';aL* 1,i.i; .:si. i6151 ,.lili-'r'.1. flr:,'; ;.
Ill a,--coic Li:.:r: rv ;h :ic-:ir i l;-:: I .15 r'lf *:e T'c','ri tl' 'rtiiil (lctir:. $e stat(r tl'lal the pr0pc$ed rnitigation
ean be tr:i:cnri:ii:'1.l:a l: l*.]r-:l:e lhe C^a-rger':c the p:rhiic henl'ih' ;air'1, ct r() p oprrrty iiue to problems
reiar;eti ic 1i;,.1,-rg c j*n ;rt'it r :o ii isrsc;lrbla le'ei. e'rrrj tirat ltc' prolr 'sed ie'r:l''rpinent wrll nrrt increase
the ]rgar i i,r '-th )1 rfg,5€i:r' )t ii::itcl,1res or io publlc buili.ingl. nghts-oFr'raV' ti-rads' stracts' rasements'
utitiriss. r;,i Lic-ljtres cl 0t1',ci ploterties rl cc nsrlci i'"'rI.
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F6r I
.{J\KARD
fi,vrtrnonMENTAI
January 28,2002
Otrs Odell, AIA
Principal
Odell Architects
32065 Castle Court, Suite 150
Evergreerq Colorado 80439
I-ranr \/f r r\iall
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AcJLrsrrc; {No VrsaAi .N CaNsutr.Nc
This letter descnbes the results of the noise analysis that Hankard Environmental conducted for the ivliddle
Creek Affordable Housing Project in Vail Colorado. The purpose of ttus snrdy was to compare the
calculated overall interior noise levels for the proposed structures to the U.S. Deparment of Housing and
Urban Development (HUD) interior noise goal of 45 dB(A).
To answer this question, the exisirg noise levels, Interstate 70 (1-'70) traffic vohunes and speeds were
measured at four locations on the project site. These levels were then adjusted to make them
representative ofpeak-hour faffic voiumes and speeds on I-70. Next, the adjusted noise levels were used
to predict exterior noise levels at the fagade of the proposed structures facing I-70. Fiaally, knowtng the
exterior noise levels and using standard building materials for exterior walls, windows and doors, the
interior noise levels were calculated and compared to the HUD noise goal of a5 dB(A). The following
provides the details of each step followed by a summary of the complete analysis.
Existing Noise Levels
Existing noise levels were measured at the four locations shown as M1 tbrough M4 in Figure 1. These
measurements were conducted using a Norsonics Type I 14 Octave Band Sound Level fvleter (Sl-lvl),
which meets the A"\SI Type 1 specifications. The SLM was calibrated prior to each of the four
measurements and re-checked after each measurement. The measurement locations wete selected to
coincide (where possible) with funre building locations. In addition to the noise levels, the trafEc
volumes and speeds along I-70 were monitored as well. The purpose of measuring the trafEc volumes and
speeds is to allow for adjustnents to the measured noise levels to simulate peak-hour (loudest hour) noise
levels.
Figure 1 and Table I show the overall measured noise level for each measurement iocation. The measured
leveis ranged from 63 to 68 dB(A). The traffic volumes atong I-70 during the measurements ranged from
27o/o to 3io/o lower than peak-hour (loudest hour) volumes provided by CDOT. To compensate for this,
the noise levels were increased by 1.2 to 2.0 dB(A), as applicable. C onversely, the average traffic speeds
dunng the mea-suements were about 7 mph faser (louder) than peak-hour average traffic speeds per
CDOT traffic studies- To compensate for measuring noise ievels during faster traIfic speeds, all the
measured noise levels were decreased by 0.5 dB(A). The overall adjustments to the measured noise leveis
were increases of 0.7 to 1.5 dB(A). Thus. the existing peak-hour noise levels for these m€asurement
locations ranged from about 63 to 69 dB(A). These adjusted levels are shown in Figure I and Table 1.
103 East Simpson Street, Suite 100 . Lafa_veite. Colorado 80026
ph: (303) 666-0617 . fax: (303) 666-1053 . wwrv.hankardinc.com
AI\KARD
f,nwrnoNMENTAr
-
TABLE I
E}OSTING NOISE LE\ELS _ MEASLIRED AND PEAK.HOUR
Measurement
Location
Measured Noise
(dB(A))
Overall
Noise Level
Adjustnent
(dB(A))
Peak-Hour
Noise Level
(dB(A))
MI ot. /+ 0.7 63.4
IVI2 67.5 + 1.5 69.0
lvt J 64.8 - 1.5 66.3
M4 62.5 + 1.5 64.0
Usrrg the peak-hour noise levels, exterior noise leveis at th€ front fagade (facing I-70) of the proposed
structures were calculated (See Figure 2 and Table 2). Each proposed structure was assiped a building
letter (two of the stmctures are parking garages which were not analyzed). To be conservative, noise
levels were calculued for the highest occupied floor ofeach proposed structure, which typically will be
the loudest. These levels were calculated by applyrng a distance correction to accoult for the proposed
structure being closer or farther away from I-70 than the respective m€asuretnent location. Additionally,
an elevation correction was applied to accormt for the reduced sound absorption due to the proposed
stmctures being elevated higher than the measurernent location. The predicted exterior noise levels range
from 64 to 69 dB(A), as shown in Table 2.
TABLE 2
EXTERIOR PEAK.HOUR NOISE LEVELS AT EACH STRUCruRE - CAICULATED
Proposed Structure
(--)
Peak-Hour
E>cterior Noise Level
(dB(A)
Multi- Family Residence (A)66
Multi'Famiiv Residence (B )69
Multi-Familv Residence ( C )68
lvtulti- Familv Residence (E)ol
Multi-Familv Residence (F)67
Muib-Farnily Residence (G )ol
Vtult-Familv Residence (H)61
Multi-Family Residence (I)o/
Davcare Cetrter (K)o4
Middle Creek Affordable Houing Interior Noise HUD Companson page 2
Ar\IKARD
ENvTnoNMENTAL
Comparison to the EUD Noise Goal
The U.S. Depaftnent of Housing and Urbaa Development (HLrD) interior noise goal of 45 dB(A) is
technically a day-night average noise level. However, HUD guidelines state that this can be applied as a
design-hour (peak-hour) criterion as well (Ref: The Noise Guidebooh U.S. Depanment of Housing and
(trban Development, I99l, j5 1. 10q. Table 3, below, shows the calculated interior noise levels for each
ofthe proposed structues using the standard construction materials described abovg which provide about
26 dB(A) of overall transmission loss (Ref. Noise Control /br Building and Mamtfactunng Plants,
Layman N. Miller, BBN, 1981, Table 67). Note that one assumption made here is that all windows are
operable but closed" and that they cover no more than l0-20o/o of the exterior waLl area. It can be seen that
ali of the calculated interior noise ievels, usrng standard construction meihods. achieve the FfuD intedor
noise goal of being at or below 45 dB(A).
it was assumed that standard exterior wall construction consists of a 4" exterior wall with %" thrck gypsum
wallboard on the inside, '/:" thick plywood on the outside, and acoustically absorbent material (i.e.
frbergiass) loosely filling the cavity. Standard windows were assurned to be double paned with a 0.2"
airgap. Additionaily, because these multi-family structures have exterior doors opening directly to the
outside, all doors facing I-70 were assumed to be solid core wood (or acoustically similar material) that is
2" thick (or a densiv of S lbift') and well easketed.
TABLE 3
INTEzuOR NOISE LEVEL USTNG STANDARD EXTERIOR WALL CONSTRUCTION - CALCULATED
Proposed Structure
/\\ -- ./
Peak-Hour
Exterior Noise
(dB(A))
Standard Exterior
Wall Construction
Transrnission 1-oss
(dB(A))
Peak-Hour
Interior Noise Level
(dB(A))
Multi-Farnilv Residence (A)66 26 40
Multi-Famiiy Residence (B)69 26 43
Multi-Family Residence (C)68 26 42
N{ulti-Family Residence (E)o/zo 4l
Multi-Family Residence (F)67 26 +I
Multi-Family Residence (G)oi 26 +l
Multi-Familv Residence (H)67 26 4l
Multi- Farrilv Residence (I)67 26 41
Davcare Center (K)64 26 38
Middle Creek Affordable Houstns hterior Noise HUD Compartson page 3
flwrnoxMENTAr
=
Summary
The noise level measurements and analysis show that the proposed Middle Creek Affordable Housing
project wrl/ achieve the FIIJD interior noise goal of a5 dB(A) using st€ndard exterior wall construction.
The analysis was conducted for the front fagade of each proposed structue facing 1-70. The standard
exterior wall construction consists of a 4" exterior wall with 7:" thick gyp$m wallboard on the inside, %"
thick piywood on the outside, and acoustically absorbent marerial (i.e. fibergJass) looseiy fiiling the cavity.
Standard windows consist of double paned wiadows with a 0.2" u gap. Standard doors, for those
exterior doors facing I-70, consist of a solid core wood (or acousticaily similar materiai) door thar is 2"
thick (or a density of 8 lb/ff) and is well gasketed.
Though this site is nosier than the average residential neighborhood due to its proximity to I-70, a
reasonable interior noise level is achievable. Meeting the HLID requirernant wouid result in an interior
space that is livable from a noise standpoint but the higlway would be audible. It should be noted that
this analysis was conducted using peak-hour (loudest-hour) trafEc conditions, which typically only occur
for a total of about two or three hours oer dav.
ANKARD
Please call if you have any questions, or we can be of firtherThank you for involving us with this project-
assrstance.
Sincerely,
Jeff Cerjan
Seruor Engineer
Attachments: Figures I and 2
Middle Creek Aflordable Housing [nterior Noise HUD Companson page J
@/ L3/2462 E?tsL COUGHL I N + 3A$747162' rt!, Jutrtt 3z:ll ril NO.985 DA6
lg 0t
ALPINE SNOW NEMOVAL & TRUCT(ING
P.O, BOX 230
AvoN, co 9t620
(9?0) s2+t452- (970)++*au,#-
9ot+ - et81
SNOWREMOVAL AGREEMnINT
TIflS SNOil REMOVAL AGREBMENT ("Ag5e""'a.r') ir rnade tlris
-
da)' rrf
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2ll---*, by ard benuccn Alpinc Snow Rcrrovrl urd Tnrcking (hcrciarfor
r€failredto;a"A$RT')and, , (tcrciuEfferre&nEdto
rs "Orrrcnfi aod or rPnPmy Ltrrsgsr').
WHEREAS,, ASBT.Ed Orymr &sfu! to eulrr iato an rgroanmt wtrorcby A$RT prrvi&g
"soow rw(,yal scwices'!o Owncr. re outlined bolow, rclaiivc ro Owacr'e prcpaty
locrrad rt (the '?ropaltr/). Tte haeic s€rt/iceelo F
prwided in:ludc rlorr lsooyal tom &ivcuroy nhco eoow rgachee approxiaaloly',lll2"
in dcpth, as dctcraimdWASRT.
Bolb partiar rgee b tts btlowiBg tsrs and conditions oftbis Agnsarrr:
l. Tccn: Tbc tsar of dris Agrccoeat will be tom ---.-uotii-
2. Fcce: Ormar sgracs to pry ASRT thmughorr the tcr6 of tbis Agrocroonr
at ths ratgs indicatcd betow;
$:: per asdh fu 'Daaic Snow Reuovd Scorice"
$-p€l occuncssc for "Brgic Snow Remonal Senice"
$:--- p€r plow for 'Basic Snow Rmoval Serice" beforc aDd Bfor
conbrct d*cs
$-per hour for "Additiond Hand Saow Rqnoval"
3- pcr hour for BqskLoe4nrdsr lVork
l-_:.:pcr hour br Dunp Trrnl \Vorlt
$--.-pa bag for edtiic.e nelr
0-por dclincatorpost usod to mark driverley'e
,42/15/24@2 8?t5L CoUGHLIN ) 3A36?87162
sl/t0/0Z 88:{g FAtr.
N0.985 047
Qos
Tbccc fus 6d cbArgBE se in cousideration for sorr reuovrl 3cryicos to b. Perf6mpd by
ASRT as set forlh bslow il stsro dstril.
3. Brsie Snow Re,uwd Eswiss; Snow will be rtmoved ton lhe drive 'way
of tbc Frotnrty rt such fiUe a3 gv€rags snour accurnuledorr hss firghed appmxiOatrrty
2 i/2" depr!, as tlncrr1he4 by ASRT, OR wherr e b3arty morvftll iS slpssp4 snoef &8y
bc nmoved onee ortwise p€r dty, rt tls tsasolaHa discrstior of ASRT.
4. AdArimrl Eland Snow Rsnorql: Owaer nay rcqucs't Additionsl Hsod
Srow Rruovel ftt dcckg. eidnnlks, rsrnoes, driYct!"y, ets. ty providhg A$RT w'ib
srffcicat rrdvsaac nsticE fot auch em'icec. ASRT auy providc Additioad tleld Bttow
Rcnovsl licwicss for such puposc ra td rcrnove icc or inow build qp' blogn or dri fting
s[ow, sno.r fallm &on rooe, it ottrc. purpoecs whicb ASRT mgy d+crmine' h it'rt
reosoqablc dissedon, m bc roquired. tj"#r agecs b pay for Addirioorl ifud Rllaovd
Services a: the rstr indicorcd above.
5. Additi@.I Equipmerrt Snow Romo,nl: Olmor rney l€qucst Additioul
Equiprnonr Snorp R.enoval ai deua.a, by providing ASRT witb suficient gdvaoca t|gticc.
eSf,T na:t pmyida Addirioml Equiprnent Snow R.gEoval which mey bo d€tslErirEd to
tc rcquirsl L ths rsasooabb discrrtion of ASRT. O'qncr 4pcs to pay fon Additiotd
Eguipvnanl Snow Rcmovsl st tb! rrE indicatcd above.
6' Accassibility and Marking sf Obstsslcs: Owucr agrtee to borc etioli,
eguipnrmr and othor objouis removed fiom ths areas r1trsa mow rqnoval is to bo
frfonaed. A$RT rgces !o mgk arpg as lp.dsd with delilpatfr poet$, at Owllr't
.*prrO i:r ordct to iidniZc d.,'ugc to eod, girdeas, rocls, sprinkler bads, etc. ()ntnu
acf$*brlgrs tbat tho pcfcnnco of icc end cnow rsmovll mey rcsult ir minor
daoegl8 ttso4 spinklor hcrds, grrdens. sbnrbbcry rnd trccs. asphalt and concrctl
F irE, ct;- qnd rbccs to hoH eSnT bernlesr fion zuch daorges !o tbe ertcnt lh't
brsc a"o*g3 caa be icasoda6y gryected, ASRT rgroos to rse it's bcst offoil.10
rtirinfz& rny snch &nagg$ to Pnopcrty,
7, Terniaation: Tbb agreenrnt msy be termhstcd by eiftcr prrty at ary
tins, witb o? rri|p6 cgus€, by providiag 30 dey's advarce rrritten uotiCe to tbs ofier
!07qy.
8. tndepcodaut coatrrcror: ASRT is an indcpondcct€ortactot, ad it is
fuUy rrn&rstood -i.ge"d by the pnrtier that ASRT stull hrye the frtllpoy1ud
rut[ority 10 3slt't tho mo3n$ rnctb;d, and ma"nar of parhruiag AS&T'S dtiicr'
obligrrionl rnd rccpomibililice mdrt thie AgrsencaL
, @2/t5/2qg7 A?tSt CoUGHLIN ) 3@367@?162 N0,985 F88' or/tazoz zz:,tE Ftr @or
9. EiUi*: ASRTbillingwillbcratotlc l5tioflhs@!rhudpaymot
ir dno o tre 30tb of tlat nootb. A 15% lBte &F wlll iasur on rll past duc Eccouats.
Onoor qlccr to pry exposc iacurcd in collcctios on 6c balCIcs @'
Alpine Sn'rw Rcmorrrl & Thrcting Ornor
Elt-----;-
Billing Arldrcae & Pbone
Middle Creek Village, LLC
Snow Management Plan
On-Site Snow Storage
The Middle Creek site plan provides for on-site snow storage in an amount equal to zloh of the
paved surface areas. The designated snow storage areas are easily accessible to the plows and
typically have Southern exposure.
Snow Removal from Site
Once snow storage areas have reached capacity, a snow removal company will automatically
truck and remove excess snow from the site as a component of the contract for snow removal
services. This ensures that on-site snow storage will not exceed the capacity available at the site.
Alpine Snow Removal and Trucking has prepared the attached proposal for snow removal based
on a the Middle Creek site plan. Alpine Snow Removal and Trucking provides similar service
for many Vail properties, including the Vail Valley Medical Center.
Alpine Snow Removal and Trucking has developed its pricing plan and scope of services based
on its review of the site plan.
There are several snow removal companies in the Vail Valley that provide these services and
Middle Creek Village, LLC is prepared to execute a contract with one at any time.
f
r
TraIIic Impact Assessment
Forthehqosed
Middle CreekResidential & Early Learning Center
D#ft*9n"ffi'
Pleparedfor
Odcll Architects, P.C.
Ewrgreen, Colorafu
Pr€pa!€dby
TDAColorqdo, Inc.
gzo to6 gtca srlc lzl
Deavcr. CO 802U2
<303) 825:7tW tE A>( (303) 825-6004
Iauary24,20O2
Updatedtuly 12,2002
I
Middle CreekTrafic Inprct Sudy
Table of Contents
INTROI'UCTION
PRO'ECT TRIPGENERATIO
RECOMMENI'ED PROJECT ROAD IMPROVEMENTS
SI]MMARY OX' I'INI'INGS
Figures
Tables
Table I North Frodage Road PeakHour Larel of Service ....................... 5
Table 2 Vehicle Trip Generation ...........7
Table 3 PeakHourLevelof SemiceatBuildout....... ....................,..........9
Table4NortbFro'nageRoadlrvelof Servicc ............. l0
t2
13
TDA
Page I Midile Creek Wrc Wad SYltdy
INIRODUCTION
This report describes trafrc conditions, now ad in the finre, in the vicinity ofthe planned
Mddle Creek residential and adjacent daycare developmeft in Vail doog North Frontage Road.
'I\e 6Yz-asre sloping site is west of the Main Vail Roundabout adjacent to the 'Va Bell"
communicetions tower and an existing daycare ced,er, Figure L A sbgle access drive serves
both existing uses. The Middle Creek project cmsists of 142 affordable aparfine'nt rmits md a
cofremporary early childhood leaming ceder, replacing the exiting c@ter. The mix of studio, l-,
2- and 3-bedroom units is stnrctured to the afrrdable (deed rcstricted) housing mark* for Vail
Valley workers . The estimated 3 1 5 tends are likely to be singles md couples employed in the
moutain resort service soctor. Sfrrdio rnits (64 dwellings) will corprise just rmder half ofthe
t fral unit nix. fu sho,rm in Figure 2, The new childhood leaming center will be situated east of
the residencos and will have separate access aod parking. A total of 245 surface parking spaces
will be provided for the residential portion ofthe projoct and an additional 20 will be part ofthe
leaming cefrer site.
Resid€nts will have good ahe,rn*ive trasportrtion choices. The site is conveniemttothree Touin
ftee bus lines serving North Frcntage andthe Town's transportatim center in Vail Village. A bus
tumout alongsido tle main mance will permit on-site boarding and alighting. Pedestrian walla
will conect with the Town's trail ryst€m. The Toum's in+ornm bus system andtransportatim
c€der are a 7r-mile walk/bike to the east md scnrth. The I-70 pedestrirm ovetpass cmnectim to
Lioshead Viltage is /a mile (l0-minute walk) west ofthe site.
This report describes the opected trip making characteristics oftenauts and day care patrms and
workers, er,,"duates existing md expected finretraffic operating conditions in the vicintty and
lastly, it addresses the need and scale of zuggested access md circulation improvements.
This report co,mains the following soctions:o Ifroduction. Existing & Frture Road Coditionsr Project Trip Generation md Distribution. Frfrure Traffic Conditionsr Recommended Road Inprovementso Summary of ffurlings. Appendix A: Lovel of Service Worlsheets
TDA
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ExIsTtr{G AIttD trUTT]RE NOAD CONDrrIONS
This sectim describes existing and firbre traffc conditions along Norti Frantage Road in the
project vichiry.
North Frontege Road
North Frutage Road is a twolane ftontage road within the I-70 right of way. Graded shoulde'rs
vary ftom fourto Eight fuet in width. It conests tho Main Vail andWest Vail icerchanges
serving lodgings, the Tonm post office and commorcial uses along the north side of the road and
roads branching offto slqe+ido home sites. Tho alignment is essentially straight with gradual
vertical curves that follow the gmly rolling te'rrain. Posted speed is 35 rryh in the project
vicinity. Peak hour trafrc couuts performed recenlly' suggost a traffic volume of aborlt,6,000
vehicles per day passing the site.
Vril Rord
Vail Rmd connects Vail Villagetothe I-70 inerchange andthe frontage roads sewing each side
ofthe inte'rstate highuay. The two-lane road flares to add lanes at the roundabout approaches.
South of interchange two-lme Vail Road iatersections with rily'est meadow llrive and Willow
Road are Stop+ign comolled.
I-7O Interchenge Roundebouts
The Main Vail I-70 hterchange roundabouts werethe ftst modem roundabouts c@sfruct€d in
tho state of Colorado, Tho South Frontage Road rormdabof is the largest in the state at a 200'
fod ornside diamde'r. Tho North Frontage Road roundabou is the smallest in the Vail Valley at
120-foot diameter. Couts take,n d the Nodh Frutagp Road leg indicate PM peak hour volumes
of 220 entering vehiclos and 750 oriting vehicles of which 35 came from the I-70 westbound ofr
rarry. The North roundabout fimctios effectively as a single circulating lme, although vehicles
can physically travel two abreast around ttre circulating lane.
Eristing Lwel of Service
Icvel of servic€ (LOS) is a mehod used for evalu*ing roadwaytrafrc operating conditions. h is
dependd on may factors includingtrafrc volumes, perceut hoavy vehicles, lme and shoulder
widths. The level of service is dAermined by calculating the delay orryerienced by each vehicle.
This delay is assiped a lefier between A ud F representing the length of delay. At LOS A
mdorists will experience litle or no delay. At LOS F mcorists will eryerience stop md go
conditions md ercosive delay. Delrv is usod as a me:tsure of comfort, ccavenience and
manzuverability of the driver. Delay for the aftsted intersectims was determined using
Highway Capacity Sofiware, inplernenting methodology in the Highway Capacity Manual, 1994
updated 1997, Transportation Research Bmrd. The ifersection capacity adysis worksheets are
included in Appendix A.
North Frontap Road
For atwo-lane, 3545 nph roadway wi6 I l-foc lanes md 4-foc shoulders, limited passing
ryporturities and unintemrpted floq'the service volumes for each level of service range ftom 125
vehicles per hour * LOS A to 1,755 rph at LOS E, as shown in Table 1. The observed
@ecember 2001) peak hour volume atong North Frcntage Road attheproject access is about 415
vehicles in the 8:30 to 9:30 AM peak hour and 535 vehicles during the 4:15 to 5:15 PM peak.
Accordingty, curreut twe'lane roadway opordion is LOS C in the AM and PM peak periods.
' PeaktandCotrsultants. krc. Thursdav lUl3l0l
TDA
Prge5 MilIilecrcehTralfuIrnpadshrdy
' l-70 Main Vail lnterchange North Roudabout
According to Lief Ourstoq the Toqm's roundabout operations conzultar! peak hour volume
entering tbe roundabout is 2,233 vehicles and at this lerrcl the roundabotrt is operating in the LOS
A range. This indicates the,re is a cosiderablo capacity reserve available at the norlt roundabout.
Table 1
North Frontage Road Level ofService
Middle Creek
LOS
Maximum Service Florv Volume
Vehic-bs per hour
A
B
c
D
E
125
330
610
915
1,755
Sourc.: TDA Cobrado two-lane|lling HCS tlfo-lane hblMayr.
ProlectAccess
Moming md aftemoon tuming movem@t courts atthe existing Day CareA{a Bell access drive
are Soqln in Figue 3. The highest single moveurent, 28 westbound rightums from North
Frotage Road occurs during the 8i30 to 9:30 AM peak hour. During the PM the highest
mov€ment was 15 left tums to eastbomd North Frmtage Road (tourard the I-70 imerchange)
followed by 14 left hlnsy'ozl tho eastbound direction. Daycare trips appear to be linked
westbound ftotage road trips in the AM and tho retum eastbound trips in the PM. The promiling
flow of through trafiic is eastbond in the AM and westbound in the PM.
TDA
Figure 3
Residential and Early Leaming Center Access
AM (PM) Existing Peak Hour Volumes
Middle Cree k DeveloPment
A
I
NORTH
No Scote
Existing Daycare/Ma Bell
€9 6
o)
222 Qo\)nr€
so7)
Pags 6 TDA
Pry7 MiddlecreehTrulfrcInpaSwdy
PRoIECT TRIP GENERATIoN
Project ve.hicle tnp estimces are based on The Instihrte of Transportatio Engmeen public*ion
TripGeneration,f Hition, 1997. Thisdocumentisaconpilationoftripsrate derivedfiom
traffic corrnts at similar uses throughors the country. Most ITE residential trip rates are fiom
traffic cotmts d. suburbm settings with little or no access to public trmsit.
Residential Tfips
Tho Mddle Creek project is located along a high service trmsit corridor with good pedestrian and
bike linkages to Vail and Lionshed Villages. A majority oftenants are op€ctedto work in Vail
establishm€ots where log{emr (i.e. '\rorker') on*ite daytirne parking supplywill be at a
promium frr much qfthe year. We anticipate Mddle Creek rosidents will be less inclined to
travel locally by car frr work and personal business trips tha thoir 'TTE4artmett" courterparts.
Accordinglg we eryext.daily residmtial vehicle trips will be in the ordr^ of 20o/o less than the
ITE deriv€d rate and peak hour vehicle trips will bo onequarter to os{hird less rhnn the ITE
rate. Urbm certers with high all day pa*ing costs aod good transit access can have transit mode
rylits of 25 to 407o in the commute periods. We believe Mddle Creek residmts could readily
exhibit a collective 30% walk/bus/bike mode split in the commute periods. Witl these prqect-
specific adjustmemts wo ostimate at buildoftth€ residential use will geoerde 753 daity, 52 AM
od 6l PM peak hour vehicle trips, see Table 2.
Leaming Center Tips
The early leaming centor will have 15 employee and short4erm spaces. Pareuts typically park for
five to 15 minrtes for the moming drq offad ovenmg pickrry. Using ITE rdes frr a Day Care
C€ster, &e center is expected to gqterate abo* 470 trips per day and abort 75 vehicle trips
during each peak hour.
Tebte 2
Estimrted Vehicle Trip Generation
Miille C re e k Deve lopment
Vail, CQ
L Day Cen Ceoter, ITE Land Use 565
2. Apadnant, ITE Land UB. 220, aqded to 8095 of ITE daily & ?U6 of pe.k hour.
Town Bus Trips
Although nct part of the project per se, buses earterring md leaving the reside,qtial access drive are
added to the project. peak hour volumes for operational andpis purposes. Tho three bus rout€s
serving the site qerate d 30-minute ftequency in each directio producing 12 bus trips (6 in, 6
out) per hour. These trips are added to project access trips to arrive at total access drive trips,
AM P€aK
ln Out
PM PeaK
ln OtttLand Use Size TvDe Daily
Day Care' 15 Employees
Apartments2 142 Dwellinss
468
753
41
I
35
43
37
41
41
20
ToAl 1,221 il9 n 7E 62
127 t39
Source: Irfi GarrerE(br ath Effin, In€fituE of Tr.mpo.btion Engins3, 197.
TDA
MUAe Ct"P* lrafrc bn$ fu.dy
.' KoJECTTRIPDISTRIBT'TIoN
Middle Creek residential trips will distribr.ilp owr the surrounding road system based otr trip
origin or dostin*i@, ald eaee and direfiess oftrarael. New residential trips will travel west on
the ftmage road for frod shqping, mail and othsr local porsonal business trips. MorE distatrt
fips orrside the Torm will be oriosd east towardtbe I-70 interchoge. Accordingly, wo
disribrte 50olo orf rcsidemial trfs to the west md 50olo east ofthe si!e. Day care trips, which tend
to be linkd to der trips, are distributed similar to existing eutering md exiiing pdems.
TDA
.PagegMiddleCreekTrafflclmpactS|udy
,' FtrIIlRE TNAIT'ICCONDMONS
Future conditions were analyzed assuming project buildout by 2003. An annual background
growth of 3% was assumed-for the vehicli volume along North Frortage Road not related to the
iroJrO. This accommodates moderate continuing residential development along the North
Fi.irtug. Road travelsheJ- For firture analysis wJ appliedtle ITE-trip rates to early leaming
center. These are somewhat higher than the observid peak hour day care volumes and are
assumed to account for added business due to updating the facilily'
Future Volumes
fG.1 UGJ.t peak hour volumes expected at the intersection of North Frontage Road.and
Middle Creek Residentul and l,eaming ieotooc*.tes. The highest tuming movement will be
westbound rigbt to*. - : f entering thJ Learnilg Celrter access in the AM and a similar volume
entering the rtidentiat arirre*ay iitne tM peai hour. The highest left tum entering volume will
be 26 vihicles tuming into the Learning Center drive in the PM peak hour'
Future Level of Service with Project
Tables 3 and 4 depict level of serviie at the two access drives and along two-lane North Frontage
n".J
"t
uuttdout otthe planned Middle creek housing development andt}3 new Learning
center, respectively. capacity analpis worksheets are attached as Appendix A.
Residentia/ Ma Bell Access
tt i, stop+igr approach will operate in the Los B range for both the AM and PM periods. This
is a vety acc,iptabie level for piak hour operation at a prorPerty access-intersection' Left tums
from thl site will experience short delays (LOS B) in the AM and PM peak hours'
Ea rly Le a mi ng Center Access
similar to existlg, this approach will experience short delay (Los B). Left tums out ofthe site
will have short delaYs, (LOS B).
Table 3
PM Peak Hour Existing/Buildout Level of Service
f,lorth Frontage Road/Middle Creek Project Accesses
Movement
Residential
Access
Learning Center
Access
Southbound Left -tB NB
Westbound Right -lA A/A
Source: fOA Colorado, Inc. Using HCS Unsignalized Analysis'
Nofth Fronbge Road, Two-lane Roadway
Nortb Frontagi Road east of the project is expeaed to carry approlqrngtely_460 fM *d 610 PM
p..f.l"* *ftcle trips. At this volume, two-iane North Frontage Road will continue to opelate at
LOS C during both peak hours.
TI'A
PagcloMiddleCreekTra|ficlmPaa1fu[
North Frontage Road Level of Service
Middte Crcek Develoqment
mE35 465/610
* see Table I
rdl
Figure 4
Residential and Early Leaming Center Access
AM (PM) Future Peak Hour Volumes @ Buildout
Middle Cree k Development
,i'
NORTH
No Scole
OD
L.,o
cv
cnoo
C)()
CD(Jo
o-'P-c\t O-
/o/tor{2
R sa a
--s
Eor'ly
Leor^ning
Centen'%s
242 Q17)
to{:4_=R
ruon};@6
256 Qo4)
Page 11
TDA
RECOI'0/'tsNDED PRo'EcT RoAD IIPRovEn,fBNTs
Soveral inprovements are suggested at the Middle Creek project access intersections in
conformance with the CDOT Std€ Highway Access Code (see Figue 2). These changes reflect
the 35 tryh posted speed of North Frmtage Road" peak hour volumes portrayed in Figure 4, and
the Category F-R (frmtage road) classification oftho frcility.
Left Tum Lanes
At 23 vehicles in the PM peak hour, the residotial access is projected to be near the 25 v&icle
per hour left tum threshold for warranting a left tum storage lane per the Code. This volume
includes 3 westbound ronnr buses' As a nuter of safety, we advise constructing a lefttum
storage lane at the residential access. The projected (for qerati'rnal enalysis) left tum volume of
26 vdicles for the Leaming Center acccs would just orceed tbis threshold. Accordingly, the left
tum lane widening for the residentialllvla Bell access should edeNrd to the new Leaning Center
access. The portim bertneem the two drives can be sfipped as a two-wey teft turn lane and thus
serve as a left tlrrr staging lare for l€& urns out of the residential access. This center lne will
provide a large'r, more comforable effective left tum radius for buse turning left out ofthe site.
Rigltt Tum Sforagn Lanes
Neither access me€ts the 50-vph tbreshold required to wand right tum lanes. Afthough a right
tum lme would aid Toum of Vail busses entoring the property, widening for the ceotor tum lane
describ€d above precludes additional North Frotage Road widening along the property's steep
frmtage.
RighilLefr Tum Accolerdion Lanes
Right or lefr arm accoleratiqn lanes are not needed per the Code at this project for eitler access.
The two way left tum lane suggest€d above will serve as a short left arm stagrng/acceler*ion lane
for left tums leaving the site.
TDA
page 13 Middtecrcekrralfulggtstut!
SUI'trUARYOT'FT{DINGS
A combined total of about 1,220 rahicles per day will use the two proposed Middle creek
ioiJ.ot13f and new leaming certer developmenf access drives. Residents are intended to be
..pf"yra at nearby Tonn Jnopt, t"ttt*-tt and blsiness establishments. Daily site-generated
g;ff i, .-p."ted io be about
^ZO% tesr than a similar 142-unit apartrnent complex in a typical
t"U*U* setting. Similarly, the combination of daytime parking cost and availability in Vail and
Lionshead villages, pro*iriy to vail village and, fiora door access to tlrree ofthe Town's free
t;t ;; ,oggJrtr'iOoZ less'than tlpicat site trip generation during the AM and PM commute
periods.
Peak period operation (level ofservice) ofeach access approach will rernain in the same short
e;;;g" GOS B) as the existing day care/Ma. Bell access drive. Left tums from North
ni"i.Zg"-n"iA will experience littl-e or no delay in most cases. Left tum storage lanes are needed
J."*r"".*g drive pei State Higbway Access Code criteria. The new center lane can be striped
.r
"
iro Way Left ium t ane. is such, the improvement will facilitate left tums (inclurling
ior" Uuto) out of the residential site. Right turn deceleration or acceleration lanes are not
needed per the Code.
The volume of project traffic added to North Frontage Road will not cause a change in two-lan-e- -
35 to 40 mpb highway op.t"ti*. The road will coniinue to operate in the LOS C range, witb PM
operation nearing tle low end of tbe of the LOS D sewice range'
The nearby I-?0 Main Vail north roundabout intersection has considerable reserve capacity to
readily accommodate trafrc added bythis project.
TDA
Appendix A
Existing and Buildout (2003)
Level of Service Worksheets, AM & PM Peak Hours
TDA
HCM Unsignalized Intersection Capacity Analysis
2: North Frontage Rd. & DaY Care DW ?,11i2002
Lane Configurations
Sign Control
Grade
Volume (veh/h)
Peak Hour Factor
Hourly flow rate (veh/h)
Pedestrians
Lane Width (ft)
Walking Speed (fVs)
Percent Blockage
Right turn flare (veh)
Median type
Median storage veh)
vC, conflicting volume 201
vCl, stage 1 conf vol
vC2, stage 2 confvol
tC, single (s)
tC, 2 stage (s)
tF (s) 2.2
p0 queue free % 99
cM capacity (veh/h) 1371
o
0.92
10
-t
Free
0o/o
222
u.Yz
24'l
lt
Free
Oo/o
157
0.92
171
StoP
0o/o289
0.92 0.9230 10
17
0.92
18
None
47 186
4.1 6.4 6.2
3.5 3.398 98
565 8s6
Volume Total
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach Delay (s)
Approach LOS
lritdFedioh
Average Delay
Intersection Capacity Utilization
251 201
100030
1371 1700
0.01 0j210
0.4 0.0
A
0.4 0.0
10
10
0
565
0.02
1
11.5
B
10.1
B
18
0
18
856
0.02
2
9.3
A
0.8
25.2%ICU Level of Service
Baseline
tdadensmal-1t51
Synchro 5 Light RePort
Existing AM Peak Hour
HCM Unsignalized I ntersection Capacity Analysis
2: North F Rd. & Dav Care DW 2t1112002
) \ lJ
MoVeriEfi:
Lane Configurations
Sign Control
Grade
Volume (veh/h)
Peak Hour Factor
Hourly flow rate (veh/h)
-t' Free
0o/o.,,14 200'
0.92 0.9215 2',17
\
Stop
Oo/o6 '15
0.92 0.92716
T-
Free
OYo
314
0.92
341
I
0.92
o
Pedestrians
Lane Width (ft) ' -
.
Walking Speed (fUs)
Percent Blockage
Right turn flare (veh)
Median $pe :
Median storage veh)
vC, conflicUng volume
vCl, stage 1 confvol
vC2, stage 2 conf vol
tc, single (s)
tG, 2 stage (s)
tF (s)
p0 queue free %
cM capacity (veh/h)
:: . 592 345
6.4 6.2
3.5 3.3
96 99463 698
, None
',348
..-....'
4.1
2.2
99
1211
Volume Total
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach Delay (s)
Approach LOS
Average Delay
Intersection Capacity Utilization
233 348 16
15 0 '16
070
1211 1700 - 463
0.01 0.20 0.M1030.6 0.0 13.1
AB0.6 0.0 '12.1
B
I
0I
698
0.01
,|
10.2
B
0.7
28.4o/o ICU Level of Service
Baseline
tdadensmal-1t51
Synchro 5 Light RePort
Existing PM Peak Hour
HCM Unsignalized I Capacity Analysis
'/11/2002North F
Lane Configurations
Sign Control
Grade
Volume (veh/h) : 7
Peak Hour Factor 0.92
Hourly flow rate (veh/h) I
Pedestrians
Lane Width (ft)
Walking Speed (ff/s)
Percent Blockage
Right tum flare (veh)
Median $pe
Median :torage veh)
vC, conflicting volume 193
vC1, stage 1 conf vol
vC2, stsge 2 confvol
tC, single (s)
tG, 2 stage (s) l
tF (s)
p0 queue treeo/o '
cM capaci$ (veh/h)
4.4
'R99 ' '
1214
ntersection
d. & Apartn
)
d
Free
0%
'242
0.92
263
DW
?'
Free
0o/o
170
0.92
185
\ \J
6.3
3.6 3.4
95 97
526 828
Volume Total
Volume Left
Volume RightcSH :
Volume to Capaci$
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach Delay (s)
Approach LOS
271I
0
1214
0.01
0
0.3
A
0.3
193
0I
1700
0.11
.0
0.0
0.0
26
26
0
526
0.05
4
12.2
B
10.8
B
27
0
27
828
0.03
3
o4
A
Average Delay
I ntersection Capacity Utilization ICU Level of Service
1.3
25.9o/o
Buildout
B Baldgya
tdadensmal-1t51
SYnchro 5 Light RePort
2003 AM Peak Hour Tolal Traffic
FICM Unsignalized I ntersection Capacity Analysis
2: North F Rd & Dav Care DW i,11/2002
JL\)
Lane Configurations
Sign Control
Grade
Volume (veh/h)
Peak Hour Factor
Hourly flon rate (veh/h)
Pedestrians
Lane Width (ft)
Walking Speed (fUs)
Percent Blockage
Right tum flare (veh)
Median type
Median storage veh)
vC, conflicting volume
vC1, strage 1 conf vol
vC2, stage 2 confvol :
tc, single (s)
tC, 2 stage (s)
tF (s)
p0 queue free o/o
cM capacity (veh/h)
Volume Total
Volume Let
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach Delay (s)
Approach LOS
Average Delay
I ntersection Capaci$ Utilization
\
Stop
0o/o
12
0.92
13
22
0.92
24
6.4
3.5
98 ''
529
ICU Level of Service
10
0.92
11
299'11
0
1368
0.01
1
0.3
A
0.3
-t
Free
0o/o
265
0.92
288
?.
Free
0o/o
't56
0.92
170
186
.
6.2
3.3'97 ' '
856
203
0
34
1700
o.12
0
0.0
0.0
13
13
0
529
o.o2
2
12.0
B
10.3
B
0
24
-856
0.03
2
9.3
A
0.9
28.5o/o
Buildout
B Baldgya
tdadensmal-1t51
Synchro 5 Light RePort
2003 AM Peak HourTotal Traffic
' HCM'Unsignalized Intersection Capacity Analysis
2n112002North Frontage Rd. &DW
j \ lJ
Lane Configurations
Sign Control
Grade
Volume (veh/h)
Peak Hour Factor
Hourly flow rate (veh/h)
Pedestrians
Lane Width (ft)
Walking SPeed (fUs)
Percent Blockage
Right tum flare (veh)
Median type
Median storage veh)
vC, conflicting volume
vCl, stage 1 conf vol
vC2, stage2confvol
tC, single (s)
tC, 2 stage (s)
tF (s)
p0 queue free %
cM capacitY (veh/h)
-t
Free
0o/o23 217
0.92 0.9225 236
4.3
2.3
98
't081
IT
StoP
QYo
24 13
0.92 0.9226 14
?.r
Free
0o/o
350
0.92
380
13
0.92
14
407
Volume Total
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Conbol DelaY (s)
Lane LOS
Approach DelaY (s)
Approach LOS
261
25
n
1081
o.o2
2
1.0
A
1.0
407
0
26
1700
0.24
0
0.0
0.0
14
14
0
375
0.04
3
15.0
B
13.0
B
14
0
14
608
0.02
2
11.1
B
Average Delay
I ntersection Capacity Utilization ICU Level of Service
0.9
31.60/o
Buildout
B Baldgya
tdadensmallt5l
SYnchro 5 Light RePort
2OO3 PM Peak Hour Total Traffic
. HCM. Unsignalized Intersection Capacity Analysis
North Fronta Rd. & Dav Care DW 2t11t2002
\ \J
Lane Configurations
Sign Control
Grade
Volume (veh/h)
Peak Hour Factor
Hourly flow rate (veh/h)
Pedestrians
Lane Width (ft)
Walking SPeed (fl/s)
Percent Blockage
Right tum flare (veh)
Median tYPe
Median storage veh)
vC, conflicting volume
vC1, stage 1 confvol
vC2, stage 2 conf vol
tC, single (s)
tC, 2 stage (s)
tF (s)
p0 queue free % -
cM capacitY (veh/h)
Stop .
o%
" 11 27 '14
0.92 0.92 0.92
12 29 15
t
Free
0%
362
0.92
393
26
0.92
28
-t
Free
0o/o
2U
0.92
222
4.1
2.2
98
1153
3.5 3.3
93 98
408 650
Volume Total
Volume Left
Volume Right
cSH
Volume to Capacity
Queue Length (ft)
Control Delay (s)
Lane LOS
Approach DelaY (s)
Approach LOS
250
28
1153'
0.02
2
1.1
A
1.1
405
0
12
1700
0.24
0
0.0
0.0
29
29
408
0.07
6
14.5
B
13.2
B
15
0
15
650
o.o2
2
10.7
B
Average Delay
Intersection Capaci$ Utilization ICU Level of Service
1.2
32.1o/o
Buildout
B Baldgya
tdadensmal-1t51
SYnchro 5 Light RePort
2003 PM Peak Hour Total Traffic
6L / 2L / 2AA2 18;1-8, --rP636767L62
ODELL ARCHITECT PAGE A5
P.a
I
Jsnurry 11,2M2
Mchr€l Coughlin &, Compcny
Attr ltr(cluol Cougldin
140&* I9tt Avcurq SuireT$
Dcry€r, Colorulo8CXl3
Subjcct Croohoadr ltr&fig$ior - Torvrr of Vait Rcrrir:rv Commur
Mddla Crcek Vrllagc r Vril Dwcbpdcd
Vril,lblcdo
. IobNr. l'1613
!vfr. Colghliq t
lfe ue rcpmcing to tho coumets on ttG lrrzd nitignim p|ur yur rcooivcd Fom ilc Town of Vril
on tbe ffnrl rwiw oftto dnnhpru pha rc-cdty ilbltittcd. Thr aonrrds rruo omoinod h thdr
ldcr ddod Jurnry 9, 2002. Wo m ddrcrcing igsuar oiacd in hem E ofthc kncr.
Itcrn 8r indicdod a grtding phn uar rndcd Sr thc lropoiod d$rir florv hrad nidgrtttn rlt @c.
Peok Lud Cototartr @-C) ir providiqg thil infqrutbn with orn inprrt o r rwi*d plao, whifi sin
bc submircd t' lou bT PLC. Wo did mt how tho ficd of ths l0Gycr fbodpldn limits wtcn *t
prcpaed on initirt Ecommendrtlom, and part ofthc roil bcrn I ths we* eod ofthe consdo qrall wrr
lcded withirr fre ltxlytrr f,mrlplain lirnitg. We lrryc rhrtard $c mil bcrm to ftnpvG my
consuctiort frrm the l0Gyear nooaphitr, a! indicrtGd on the rwircd pbn No concrt clion rill oocur
within rhe flootplain rdcigDd€dryttlat& !s plfrofthc hud nitisilim.
Itcrrr Sb tndlcaothr ilrligCion ofth! roclfilt bard u tlt itc ir not rddnercd in thc iltitigltin plrlr
Anote will bc rddcdto tr phns indinrftrgttil ft6 roddll hdd will nitbrued by rmoving ldcct€d
rockr on tho sbpo cbove tho site pir to construdion, ard tho toostioo of tbo rockhll lprrd uta wlll
bc indiomd or.th dtoplao. :
Itcm 8b alro oprcrler comcm rqgrfing th culvat undcr I-?0 ud fro cftd of "ditrrtinS" d$dt
torradr tbis oilvcrt Tte comments ildice ftat'the dehrir mltlgfbn rcport uill ttcd tD rrdel dtG
weor to shm tro flw dops highcr up and doGs nd imprd rry o&cr propety.' We bclievc tftir
connent is erpreuing cotroem over tbc poiibility of plqging ttro orlvst and cursing dditionrl
&mrge in &c seg pimuity to roadrrayc. Tfu uthrcrt in qucrtiorr ir a 7?-irrch dirmdcr coiltlg@d
naal pipo (Cl{P) with mwtc lradunlls,
In qdcr to ar drtrr thir onccn rt thir tinq urc oftlr thc following coNodrcot . Fhet, pruecin of
qrlvats is rerf impotrrt in rory mitigdion rchorrc ud infwraim ir nnll6lo in litrmuc rryrdiog
how to efiplilh this. We rre @ching roqionr of aCimrlu pnparcd by Tlp U,S. Dcpnrffi of
Trongortaior, Pcdcral ltrgbmayr Adniniltntloq tithd 'Drbris{otftol SfiudrrrcJ'. Tablo I lim typa
of sructu&r rrld thofo irtendod ure for differqlt tlpq of d&ir. figrdls t drcrgh I I thtw clqoph
DENVER 1501 lvrtrrorfi Eoutcrrrrd Wherl ilCsE, Oo 00cl!
CHURCH &
ENGINEERS&GEOIOG| TS
309.48S.9t17 F r: 3G.48t.9121
c^stlf Foc{ o0g.to.$!a
E\ftiOnE€ t@clc,t{t5
LOVEL iro 970.(l.it2'e.
|YESTEF { $t OPE ?r0,|.lr5100
8L/2L/2AA2 18:18 3A36767t62 ODELL ARCTIITECT , PAGE 06
P.3
Dftirnmrfilllh
t$lJa 146ll
P{ez
i
I
debris dcfletrcs. Thcrc 0$rc0 shotil m*bods of pnotedi$ the flh/art fiom clogging; whid cqild
carc dsmsgc to fu roadwryr in thc srce Sincotbc pipe is 72 itrcho in dfulaic, wG GrpGot 6a rntot
ad fim scdimett lry to ofila rirc curtd prqf ftongh tho piperfuirrg r 0ood or detrir Eow ermt orrr
dclign aud Iniltdioo plar inohrdeo t ruucurrc.orr ttc upwrnr ddo of the Dipc to Fdude dogixtg
firom oorscr mrrrinb mh rr boHerr, rc cdl rr f,ffiirg d$rir nch rr l0B$ The revbd obmittal by
PIC will rtw rr rfrrdrrc d this locdion. At indicid in <rr nitigilion $frome 6c hcrvity utoodld
ma trysboam d'thc arhlut will gra to ffi u[ tnuch coms d$d! rd rr bcrldcn and logt, hr
ooosuctbo of rr d$rir ddlccttr will povidc rdditioul Inrururce qrinc arlvtrt phtgging rt thc pipc
location
Ilp comrmtr t'om Vail rllo indicte tbc tho ploporcd mitigdim sclmE hrs "dirt(tlf dcbri! doffil
tttc ficm chrurcl of Mddlo ffiT with r roghing irnprrsion tE ttis incrcarcc the rirk of phtggitrg
thF orhr€rt udc'L?O. We worrtd like 6 cbdry r[ir poirn. A nap of fhud Atlas frr tho llaltrin Bcll
si]l prwr€d by thc Torrn of Vdl, ddod eui,a fi, 20Ol rbt|l th tEPpC ad of thc d$rie dow
terdd ind roOiru hzrrd n thc uile A oopy of tlrfu m+ is drcfud fr r:firw. Iltir rrp indidtr
Itpptlcdffidofthcdcbris flowbzrdinrhllounrbe rlignmrntofMddlc Crcckaldthcn elcrdl
qn-tu$ tnrth cf tlp (ulvqt. TIE mry irrdicub thno io droady a rist of dlhis tbwe ru*hiry thc
odifi, or d teus cftdr of dcbrir nour. to*rtting r divenion uatl qfddc tho *unr c,hrmcl rborro
na frfnnaln gill BuiHiIg do€0 r$t Tpcrb chiluc thc hard zonc atradymrppcd 0f thG rbkto fu
ctrlvd m rudunyr, A rnll oinply hiirueo thc chance thr debrir fon's Ni.y io tb clunuol.
A $dr dilornioo bf d*rir flow bcncvhr rritl cllriS tlrir irarc futh. Onca frdood in 6a bosin rbovc
;d.p"didtal lirt dcbrh flors dow downblll wnirc rmdc* gadtd nd a dcfimd chtmd cdt
Whgr, th.y reactr ito zorrr of dcpocftbn (in tlric casc tlre dbvhl frn whictr is the dte rcr)' thc!$n
slou' dm; when tlooy rorc[ tre darcr *nhn lrrCtemg on thc fu ud depo& thdr rdinem brd Who
611 C fnt CcUt ho'*'l ad ws wilt fdw nornrl ro loPogr4hic contrrt linor Thc-popocod
;id;fi"tr tt * tnr uf* drfu bchnktr imp acoaut. Ilotue\L-wbcrot qti€r 6ows uill urully
foniw ccOtt*cd $orm ctannelr qrrn rllwial ftn, dohic f,owr do mt alwrys tlo trk' Thc rot$tt il
tbd-s;'t"tt d*tis fl"n.'Ycd! can ocur drring t r4agle ltrgc rtrE" Ttpfirt f,orv ora d4oaft r pihof
dcbrir in thc lrtam clrrnrnl. rd rb noa f,; caa Uo Ovc.toa by thh fird dckis'dtld'- ntfu b thc
Frson yrry th, qtirc frn rtr crn bc d risk fon d$ris f,owr, trsl a$ry ftm tlle P€tcd Clcstll
dtamel"
When rnatyzing tlro lrzrrl m this ful f QPtm tb$ a linglc flow rorld Ukq ry in thc Gilirfu8
cnoot ohrn*l-ad f,pw rqlthrcst f-6m thc''mdrb of th -aq'ur' A lrrge rndor rrpid flm' oodd
polribly *jump' tfr dt;lrnol'ed llow tswrildr frc lrlqrntrin Bcll BuildinS, or- rcuth ftom rh€ IE dh of
[l; dy"n f;om to ilre nlhcrn rcm hlr lilcly, hl rre porsiblc f_,tdtdd in Ps* sdi6
i;qrd;;t fu tl'G fnC Scbol. The rdditio.n of a divrrsion *dl ilhidc of thc a'dsirs letrm cb!trDd
dryty r"d,r* tho rieh of orlof<hurel how * th. hn. n dol; dhing wtrerc tlp fir$ pGdUUty
o",ini 6O flc.rm rby in thc c,hrmd utl rcr'er codt&t ftc untl. ft piut/€tils bc aecotd ild dftd
sccnnioo by bloctiog fbws dirodod to tto rolt or sotrhErc.
Itern Eq itdisces tbl nue ry*ift laagulgo forn Scction l?-21 of 6e Tom Codc rncds t bc
inpludod, ortirg thst iho delrd.pr""d q,ill d irE€uo sc btdd o rttr propcrty or rtruchrnB3 a to
etlftii U"ilAintil rigtilof-qay, riaar, S".tr, carcarcmr, utilltiuC q ftgirlities,g ot!1 F0Pcfti6 oJany
[ha. fn o" oi liiott, tnc qrriitly dciincd fiirA uta indicncd qr trc Towa ilizud ere* ryR Sl ry
$9 *trrg.d 6t Utr goeorO ;iff$tbn *honc, dnce it i! itltcodcd to &GcP tho hazrd wlthitt tb
or,.*ly-Ocerlf 21"l. xo tolf *ni* *aoe rcdrf,orubyInilding6cpropoloddivcnimwrll mSc
LL/2L128,A2 18: 18, 3936747L62 ODELL ARCI-IITECT
\ofrrme of ddri! 0owr wi[ ffi bG iionadt. Wc rhcr6re bdiew thil m ioctqr in rirk of drorgr o
popctyorrtrgctrruircarsdbyttsfpo$d mftigdrn loltttttc.Inf,ct, iurtlirg riliwdonwdl u
irobodd *[ s€rec to tsdrcc thc rilk ofpropctty drmrgc m fu Murcda Edl Builditg sd Pdtiag ld'
hrdr*to trc o,idtrgculv€rr ud uddip ccudrofrh dnrrill do nc bc incrurocd otrc tlt alrady
ori*turg odiy. Tddog- dditiond pncurtlinr to @d ftc otvat by inqr{rry r rlcbris dcdhctq wlll
dr8[t rctu; ttn rilk of danagc thn umtd be cnr$d ty ptrrgging lhc o.isiry dhcrt.
\t e bdicvc ttir ,nft,rm*hn ia affcicri to rddruro th oonoctn rdlGd by tbc Twu of vril durtu tb
derdqm phr rwiow. Plo* crll rrith rny quc*iotl.
Sftrccely.
SttRCH& Assistsq Inc.
ffi*ffiffir
2CopicSmt . :
AfrTChEMD
Furcd to lvfidrec d 303t61-7lcp
I cry to (X.n Amhitogi, P.C. Atgr: kelvtrrn 32065 Carle Corrf Sultc I5O Evcrgco, CO 80139
I ooDytohilc Lmd Cmartrrds, Aitt lthttTurdl 1000Lion tnid$pfnop,Vail, CO81657
PAGE g7
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ARCHITECT2AO2 rc:LB --..3836767L62 ODELL ARCHITI
TABTE I - Caride ror selectii tvpe of itructur
' sui.table for various debris classiflcatlons
<-t-----tm"r*ltll,.l
t
,ebnla
--\__lilll$l!l
ll_as6ifi-c+ti.o':
,lsEt Eto+tiqr: oeu'r" -- | -. I ' x"l l"x Ittttl
{edium.F}qstilrs Dcpsis - - I X -l-ffittl
reawF}.o..at'iry,D"F"ig | * I -l- I i
Flrwirgpsbs!'" - -l | 1-'l--.l
Fine Detrltus
Couse Detrit
Borrraeng- I f l- | t-
@"i*@
Tbe riurction of a d'ebrls !enii'g1 !{fgs' r-Il) i
ruai"r irO rteavy floatiit autri" and large- rtclcs fron
'ilt['r;i'-"iii'-Ltation ii a st""age area nhare lb cah
after tho flcod subsrit*. ttt" "bitage Yg pTo+14 tt'
ii-*tii" ltr' "nttcrpaila tvpu ana quantrtv of debris
eccunulated cturing any one -"-t"t * -bct'eeen cleenouts '
bbould. be bui.lt.8t ttre cuivart enrtranc e antt ellgned *i
rather thgrr i;hs
"oL*rot
- * that accunruleted debrie r4l
block the ch;urneI.
sinste .tsfLectors can be. built ov-q l-tl}:"it: "{-trfe.?I'"t:.nCivfautr d'ef,lectora can be.br'ri1t ovc er
[iil"iitiig.-iil- riJ''"tructu'al stablritv Td 9ll
tlre flow malcr def,Iecto"* poticuf"rly suitable for Iar
hi;h-;;i";ilr flow, *a-*itt' dcbrlr iu"h as h€alv logr
).arge bouLd'crs.'
9-7.
H.ttr.--.---.-. r,,..,.'!:.. . ..1r lr..':.artt rFil.'rrsi|".rFr*aajr-r ry-.j +... _.
8L/2\/
rcting tYPe of structures
debris classiJlcatlons
ffi tltltttlttllItlglti FlElEl6l E;_t-----T---rl.x.t l..x IT--l- l
I-1ffir',Fr_
[---F+-.r-J--I l-rl Iffi
De8ectp.rs
rflecior (flgs. r-IJ) is to
anO farde rcct€ fron th€ c
,ese area fh€.re lb cah be re
,iii""t area provided mu'st t
rnd quantftY of debris elPee
r *'b"tru* cleanouts ' Thc
rntranc c and ellgrred rith tX
ac curnrfate<t debrie nl}l not
r:ilt over bltteldes of, P1Po.
ra-can be brrilt ovc each PJ
burat stabllitY and orlental
flarly suitable for Iarge ct
urlr iu"h as healy logs, st'l
9-7.
....r rra.l.f t}rr.t9".r'Fr*aaj
I
I
i
f-Il) is to dlvert
ks fron thb culv€rt
lb cah be renoveq
ovitted nnrst be sdcquat'e
debris elPeetcd to be
eenouts. The deflector
lsned rith the E treerr
Uiie *aU not tend to
r-"1-es of, PlPo culvats
, ovd each Pl'Pe of a
,' and orlentation rrllh
I for Iaf 8e culY€rta t
raly logs, st urnPe, Or
ALl2Ll2z62 18:18 3a367a7r82eE .r.t i r:tQJl
ODELL ARCN-IITECT
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zL/2L/2602 l8:18 3A36747162 ODELL ARCHITECT PAGE 10
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39
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v)
a
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illil'#"1
sz
ltl
I'lr
5)>-
Jan-l7-0? 02:07pn Fror
Ilwdsrmd the Intoimrtion ild reprlr on(bEb"fiilmfidgdirn tbrutddlecrcekMlhgerrd o|f€r |rr€ b[owtlq simentr. ffrce aru niihnt onil ti ttreIrcenter 13,2001 lepoilfr aaryanying ng,Jr€. t arrd d -' -
a. Dabd: lfom rt thir.iocadmr Jrdging fonr Gondltms obo€n od In 1ggf, rasultfruf sgil-.4ip hnrrilder or criepo iurimd ddail;ureii$ncne ancenbr lloodlrtg ctuqm_dnnrclr. r'trery er b uery lluil wlh s trGtr watrconEnt end rpre at high Epe€ds. AfrErndy ttri can ue trtrtr-iir_- sdimnt
$51aEp:^9^D "ryd
can inovarrn ctorly. Suironth ffiunt" of rocks,nu6, t?eq ctc. cen beentaincd anbtrollowr(c.g. Eodr Cretfm ofMay,198{). , .
b. Dalrb llnrn can entdn tregffition at pdnt.g., I do rpt believc lhe coarcemat!.id utflr necsaadly bo rroppod bythe wgclilon in tr;-"d;a; drannc.c: 'l!E cdrrad a porrrt rSj cannCii OepErteC ,fo, b @n,€y debrir,.d. l 9'ge r,rstr*nrdrv lFy $r c+oci-in rrs uiocccr"iii 6i-#l*uur ot ut.n€r, oovr poruol|J of ||ie pmpasd FrddrE lot and d€po€lt agalnst s|" nodr3!dF of Fe prypoaf !rHqr...n*: bddinea c|oufd-n-;-b. Jiismc rr
191!: E_1!fd toads. Ths-btr[dings ueryneruil wiiLseni o prda rrrolbnn F onqp Rd emr from debft florc. .s- The dorrsfoFrEnt and rrrtig$iqr pnpo*d crorrd ncl incrme ute dsk forndebds iil3bths Ndtr Fmmgir RbaCara.
In rumnrry, wlrll€ fie ri* b elglirig prsrc gopcny rifl not be irnrea'sd w theproposd oeFowrpng t {o 1.rg! |b€r-tre poi'rld mnbaton wiil ild,refioty-ptubct tt€ ptopo3€d nsw brdltilrgs.
Plcase *JOrrr if you haveaddtonal coftnontc.
Sineraly,
0rl'l*1.'{4,,*
ARIIIIIR L IIFARS, P.E.,INC.
NrnrrotHaad;Concuftmu
Strf h4rtrd roftrir*Cdselt2l0
ffr&I! 9zl.6tt.!tt6rlqlrri-s
Jfiuary lq?:gm
Torn lGr$rd
Town of rilail
Via Fx (970)479-2tOG
Desr Tom:
t
rkF rfdv. 4ufr6irr.r*-*. t*, *
T-nt P 0l/01 F573
Artrur l. f,laan, p.E
I
Smooth Fe€d SheetsrM
Fred G. Steingraber Revocable Trust
6lSWarwibk Road
Kenilworth. IL 60043
Ronald & Kristine Erickon
5123 Lake Ridge Road
Minneapolis, MN 55436
Franco D'Agostino
848 Brickell Avenue #810
Miami. FL 33131
J. Richard & Gay Steadman
c/o Flynn Steadman
6161 S. Boston Cir
Englewood" CO 801I I
William & Julie Esrey
2624 Verona Road
Mission Hills, KS 6620E
Evergreen Lodge at Vail Ltd
l22ll W. Alameda Parkwav #202
Lakewood. CO 80228
Vail International
300 E Lionshead Circle
Vail, CO 81657
Greenwich Realty Holdings LLC
1082 Riva Glen
Vail, CO 81657
Lee & Charlene Raymond
4642 Meadowood Road
Dallas. TX 75220
Rajendra & Neera Singh
3801 Belle Rive Terrace
Alexandri4 YA22309
Rose F. Gllett Revocable Trust
13l5 Spraddle Creek Road
Vail, CO 81657
Spraddle Creek Estates Maintenance
Assoc.
l22l Brickell Avenue
Miami, FL 33131
Town of Vail
75 S. Front4ge Road
Vail, CO 81657
Colorado Dept. of Transportation
Office of Public Information
4201 E Arkansas Avenue
Denver, CO 80222
Use template for 5160@
Sequel Capital Corp.
570 Lake Cook Road #405
Deerfield, IL 60015
Reunion Units 550/552 Inc.
Post Office Box 122
Helvetia Crt S. Esplanade
St. Peters Porl Guernsey GYI4EE
AIRMAIL
Bjorn Borgen
Founders Financial Center
2930 E Third Avenue
Denver, CO 80206
SC Mountain Top LLC
4E5 iVladison Avenue
24u Floor
New York, bIY 10022
Solar Vail
Sonnenalp Properties Inc.
20 Vail Road
Vail, CO 81657
USA, Sec. ofAg., US Forest Service
C/o Wbite River National Forest
Post Office Box 94E
Glenwood Springs, CO 81602
@ot=..tt Address Labels Laser 51600
o we,4_
,l ,r=t MAY AFFE.T YouR PR.P.J
PUBLIC NOTICE
f.fOlCe lS HEREBY GIVEN that the Planning and Environmental Commission of the Town of
Vait witt trotO a public hearing in accordance ilith Section 12-3-6 ot the Municipal Code of the
Town of Vail on January '14:2002, at 2:00 P.M. in the Town of Vail Municipal Building- In
consideration of:
A request for a variance from Sections 12-7A-9 (Site Coverag-e) and 12-74-6 (Setbacks)' Vail
io*ri CoO", to allow for the construction of a new front entry feature at.the Mountain Haus'
focated al2s2 E. Meadow Drive/Lot 5, Part of Tract B, Vail village 1"' Filing.
Applicant: Mountain Haus, represented by Fritzlen Pierce Architects
Planner: Bill Gibson
A request for a variance from Sections 12-6C-6 (Setbacks) & 12-6C-9 (Site Coverage)' Vail
Town Code. to allow for the construction of a Tyie I Employee Housing Unit, located at 4166
Columbine Drive/Lot 18, Bighorn Subdivision.
Applicant: TimothY Parks
Planner George Ruther
A requesl for a minor subdivison of the proposed "Fallridge Parcel"' a Part of Lot 1, Sunburst
iitind ruo, 3 / a portion otlind adjacent io tire Vail Golf Course Townhomes in the 1600 block of
Golfienace. A complete metes and bounds legal description is as follows:
That portion of Lot 1, Sunburst Filing No. 3, according to the map thereof recorded in the
office of the Eag|e County, Co|orado, C|erk and Recorder, described as fo||ows:
Beginning at the northwest corner of Lot 2, Wanen Pulis subd.ivision, according lo.the
ma-p tner6ot; thence S00oOO'OO' E 109.62 feet along the west line..of said Lot 2 to the
northeast corner of Lot 1, Vail Valley second Filing, according to the map thereof; thence
Ng9o23'41, W 101.18 feet along the northerly line of said Lot 1 to the easterly line of Lot
11, Block 3, Vail Vailey First Filing, according to the map thereof;-thence N00o36'17' E
114.71feet atong said easterly liie; thence t'lO+oZa'+3" W 35.16 feet along the northerly .
line of said t-ot r i to the easterly right-of-way line, of Vail Valley Drive; thence, along said
easterly right-of-waY line,
7.97 feetitong tne arc oi "ur" to the left, having a radius of.75.00 feet, a central angle
of 06005'17', ind a chord lhat bears NO8o33'46"E 7.97 feet; thence, departing said
easterly right-of-way line, the following four courses along the southerly line of
Condominium tUap for Vail Golfcourse Townhomes Association Phase lll' according to
the map thereof; (1) 5S.14 feet along the arc of a curve to the right, having a 9!1u9_of
253.31 feet, a centiat angle of 13o0t0s', and a chord that bears S85o43'11" E 58.02
feet; (2) S79oOg'38" E 63:09 feet; (3) 10.83 feet along the arc of a curve to the left'
naving a radius of 31O.OO feet, a central angle of 02o00'07", and a chord that bears
s8ooog,15"E 10.82 feet; (4) SOOoOO'OO" E 11.20 feet to the point of beginning, containing
0.310 acres, more or less.
Maps referenced in the above description are recorded in the office of the Eagle Coun$'
Colorado, Clerk and Recorder. (..: ,
Applicani: Fall Ridge Condominium Association ,, gL*:rC[.
ptanner: BillGibson ,-f Jjf"pi,flff l.: vt,4ttll
ffi'\rl-NdJ I
t TowN?nvAILlY
A request for a variance frollction 12-7H-10(Setbacks), Vail Towrtlde,-.at the Lion's
Square Lodge, located at 660 West Lionshead Place/Lot 1, Vail Lionshead 1"' Filing.
Applicant Lion's Square LodgePlanner: Bill Gibson
, WITHDRAWN
A request for a Conditional Use Permit to allow for an Early Leaming Center and a request for
deveiopment plan review to construcl Employee Housing within the Housing Zone District and
setting forth details in regards thereto, located at the site known as "Mountain Bell'7an unplatted
piece-ot property, located at 160 N. Frontage Rd./to be platted as Lot 1, Middle Creek
^ ^l Subdivision.
D{Rppticant: Vail Local Housing Authority, represented by OdellArchiiectst Planner: Allison Ochs
A request for a major exterior alteration in the CCI zone district to allow for an addition located at
units got and 303, 225Wall Street / Lot B, Block 5G, Vail Village Firsl Filing.
Applicant: Eugene FaheY
Planner: Allison Ochs
A request for a sign variance to allow for 2 building identification.signs, locaied at West
Lionshead Plaza,-616 West Lionshead circle / Vail Lionshead Filing 4.
Applicant: BeigewaYHoldings,Lid.Plannen Allison Ochs
The applicafions and information about the proposals are available for public inspeclion.during regular
omce hbrrt in the project planne/s office, 6cated at the Town of Vail Community Developm.ent
ilp"rfi;;t,;riS,irtfiFi"iGge Road. The public is invited to altend project orientation and the site
ui"ifJ m"t piecede the public flearing in the Town of Vail Community Development Department.
Please call 479-2138 for information.
Sion lanouaoe interpretation available upon request with 24-hour notification- Please call 479-
ig-SO, fe-tepFone foi the Hearing lmpaired, for information'
Community Development DePartment
Published becember 28,2001 in the Vail Trail'
-
Eacle Rtven
-7
Wnren & Slrurnnon Dsrntcr
-r-846 Forest Road . Vail, Colorado 81657
(970) 47&2490 . FAx (970) 47G4089
January lO,20Oz
Mr. MikeCougblin
Coughlin an{ Company
lrt0 East l9h Avenue, Suite 700
De,nv€r, CO 80203
SubJecfi Abiffty to Serve Town of Vail Employee Eousing Project (Mlddle Creek
Development) - Domesdc Water
DearMr. Coughlin:
I received and reviewed your correspondeirce dated Decenrber 27, 2001 regarding the above-
referenced project. The developme,nt will consist of 142 multi-family units, preschool, and
community ceirter. The combined water dernands are estimated to total 32 acre-fet annually.
The consrmptive use will total 1.6acre feet annually.
In 2001 the Eagle River Water & Sanitation DisEict's (ERWSD) diversions totaled
approximately 75To of the maximum allowed under the decree in Case No. 82CD328. In
addition to that decree, the ER\4ISD can us€ its Eagle Part Reservoir wat€r to augme'lrt its
depletions. Accordingly, ERWSD can cover the wat€r uses for the above-refer€nc€d
dwelopment under its oristingplans for augne'lrtation.
If you have any questions, please feel free to contact me.
Sincerelv.
Epif \l'.*$,-
Fred S. Haslee
Regulations Administator
Cc TomA.Williamsen
Glenn E. Porzak
Demis Gelvin
Ma*Tarall
Chstomer Sernice
FSlVmern
- I
v Wnren, WesrgMTER, Openrtrous & MANAcEMEl.rr SERVToES
F SW$ltREGlS\LETTET,STdI2UTOSMDDIITCDOC
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_,J,- .-. .Elcte Rven
-i7
Wlren & Srnmnou Dtsrnlcr
-7-846 Forest Foad. Vail, Colorado 81657
(970) a7G7a80 . FAX (970) 476-4089
January 10,2W2
Mr. Mike Coughlin
Couehlin an$ Company
1,10 East 19'Avenue, Suite 700
De,nver, CO 80203
Subject Abttlty to Serve Town of Vall Employee Houslng Project Mddle Creek
Development) - Donesdc Scn'er
DearMr. Coughlin:
The Eagle River Water & Sanitation District @RWSD) will provide domestic sewer serr"ice to
-
THRrilisDtraccescapaci(y'toprces-ffiiusewer
wat€r to its constitueng at this time.
The Vail Wastewater Tr€€ment Facility (VWTF) is currently serving aprproximately 5,710
single-family equivalent (SFE) units. The desip capacity for the VWTF is 7,500 SFE units.
Accordingly, the 142 multi-frmily units and associated commercid uses of the above-refercnced
development can be accommodated within these parameters.
Upon compliance with 0re Rules and Regulations and the palment of 4propriate tap fees, the
DisEict wiil provide domestic sewer senrice. Constnrction of all main line extcnsions is the
rcsponsibility of the developcr, however, all constnrction drawings must be pre-ryproved by the
Districl
Ifyou have any questions, please feel free to contact me.
Sincerely,\.1 e\ \\
^q{"or \- \)Gr\l!l
Frd S. Haslee
Regulations Adninistator
Cc TomA.Williansen
Glenn E. Porzak
Dennis Gelvin
Mark Tarrall
Customer Service File
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TOW OFVAIL
Department of C ommunity Development
75 South Frontage Road
Vail, Colorado 81657
970-479-2r 38
FAX 970-479-2452
www.ci.vail.co.us
January 9,2002
Mike Coughlin
140 E. 1glh Ave. Suite 700
Denver, CO 80203-1035
Olis Odell
32065 Castle Court Suite 150
Evergreen, CO 80439
RE: Development Plan for Middle Creek Village
Dear Mike and Otis,
The Community Development Department has reviewed the submittal for lhe final review
of the development plan for Middle Creek Village, including all subsequent submittals.
The following items must be addressed prior to final Planning and Environmental
Commission review:
1. No inlormation was submitted regarding the parking thal is located within the
parking slruclures. Floor plans (indicating parking space layout) and elevations
musl be provided.
2. The building elevalions are not complete. lt is required that all elevations must
be submitted. Currently, none of the buildings have elevations for all sides.
3. There are no floor plans submitted for the Early Learning Center and only one
elevation of the building.
4. The buildings as drawn on the rool plan do not match the buildings as drawn on
the grading plan (e.9. overJapping stairways are shown on the roof plan).
5. With the changes that were made to the site plan, no revised floor plans, writlen
description, parking analysis, sun-shade analysis, etc. were submitted. All plans
musl be lor the same development proposal and must be reviewed concurrently.
6. Snow storage is proposed to be located in the right-of-way. The Town Code
requires that snow storage must be located on-site (i.e. within the boundaries of
the lol and not within the right-of-way). A minimum area of 30% of the paved
area must be provided to accommodale snow storage.
{g *rn*or^ruo
7.
L
)
Structures must be located 10 ft. off of the feeder road, and obstruclions cannot
be within 5 ft. of the feeder road.
The following are issues staff has identified with the hazard mitigation plan:
The grading for the mitigation is not indicated on the grading plan. The
mitigation grading limits are localed within the 100 year floodplain. The
wetland delineation needs lo be extended through the entire site as
grading and walls will be located throughout the existing stream bed.
The report states that the full impact of the results of the mitigation
measures will need to be determined this spring. The Town has concerns
regarding the culvert under l-70, as debris has been diverted down the
creek channel. The debris mitigation report will need to model the event
to show the flow slops higher up and does not impact any other property.
The rockfall report also suggests thal boulders should be dislodged prior
to construction. This needs to be indicated on the mitigation plan.
More specific language from Section 12-21 oI the Town Code needs lo be
included, slating lhat the development will not increase the hazard to
other property or slructures or to public buildings, right-of-way, roads,
streets, easements, utilities, or facililies or other properties of any kind.
The following issues were identified regarding the lraffic report:
The traffic reporl was 1o address the various modes ol lransportation and
distribule these modes to various conneclors and discuss impacts to
those conneclors, This has not been done. A 33% reduction was used in
an already reduced total people trip number and we have no idea if an
additional bus will be needed to meet the demand. The current level of
service is only 30 minute during peak time. This then will need to be
considered as il may generale even more additional pedestrian trips.
This then has impact on what direction they are travelling (e.9. if Wesl to
the pedestrian overpass, should the development pay for improvemenls
in this direction? lf East, are lhere safety concerns in the roundabouts
which need to be addressed?)
The report uses a trip generation number for condominiums versus
apartments. The development is clearly an aparlmenl complex. This rate
is slightly higher thal lhe condo rate. The report also took a 30%
reduction in overall lrip generation. Even in the mosl aggressive travel
demand management scenarios, we hope tor a 15/o to 20o/o reduction.
Revising the traffic report to meet these crileria will require left turn lanes
at each access point. In addition, lhe Town feels more comforlable
pulling buses into the site wilh a lefl turn lane.
The report was to address the availability ol parking, Specifically, with
regards to the Early Learning Cenler, 16 spaces is not enough. The
traffic report should verify if the schools were at capacity when the traffic
reporl was completed.
The report slresses lhal Green Building Practices will be used, but noise from l-
70 is nol addressed. The FHWA guideline for noise mitigation states that the
development standards of communities address the impacts of noise on future
n
b.
10.
developments if the community wants to be considered for federal noise
mitigation. The development needs to address the impacts of l-70 noise with
regard to the livability of this new development.
11. The Environmental Assessment Report indicated thal retention ponds will be
necessary. There are no ponds indicated on any of the plans.
12. Water main and hydrant locations must be indicaled on the site plan. Please
contact Mike Vaughn for additional information regarding spacing and main size.
13. The residential buildings and the Early Learning Center must be sprinklered
according to Town of Vail standards. Please indicate on the site plan. The
parking struclures will not need to be srinklered.
14. Please indicate a limits of disturbance on the site plan. This will need to be
indicated in the field with a construction fence at conslruclion.
15. A floodplain analysis of Middle Creek is required as hazard mitigation is done
wilhin the stream embankments.
16. To verify building code issues, staff recommends that a building code analysis
and accessibility analysis be provided. This will have an effect on the design of
the buildings, including materials, egress, etc.
17. Floor plans, building elevations, GRFA, unit type, etc. need to be broken down
for each individual building.
18. Many of lhe eave elevations for the stair towers are not indicated on lhe roof
plan. All roof and ridge elevations must be indicated. Some ol the elevations
indicated on the roof plan are inconsistent with those indicated on the building
elevations. The maximum height proposed, according to the plans submitled, is
54 ft. I was under the impression that 48 ft. was the maximum heighl the
applicant was proposing.
19. A zoning analysis must be provided (8.5 by 1 1), indicating the development's
compliance with the zoning regulations, including, but not limited to: height, site
coverage, landscape area, GRFA, parking, etc.
20. Indicate the 40% slopes of the site plan. No slruclures are allowed on slopes in
excess ol 40o/a.
Should you have any queslions, please do not hesitate to contact me al 970-479-2369.
All of the above comments and concerns must be addressed prior to final Planning and
Environmental Commission review.
Sincerely,
/1rt A I
llWfi,[ilt
Allison Ochs, AICP
Town of Vail
?,^
To Allison ochs '-) r ; I>C)^-<dt r*1 4L *"145
From Greg Hall | -tTomKassmel
-
tr rPFs a-tc,o 4^. -RE Midddle Creek Village , o lr
Date January B,2oo2 -1"- "ttD-.ri* jL* I .___I
The Department of Public works has reviewed the submittar and has the foilowing 2*7 |
2)
concerns and comments:O.^-
Trafiic Repot Y tF
'DL'--1) The traffic report was to address the various modes of transportation and distribute I
these modes to various connectors and discuss the impacts to those connectors.
This has not been done, a 33 % reduction was used in an already reduced total
people trip number and we have no idea if an additional bus will be needed to meet
the demand. The cunent level of service is only 30 minute during peak times. This
then will need to be considered as it may generate even more additional pedestrian
trips and in what direction are they traveling. West, to the pedestrian overpass and
beyond, should the development pay for a significant share of the improvements to
make this connection. To the east and are there safety concems in the roundabouts
which need to be addressed, if there are should there be more frequent bus service
and who should pay?
The report used a trip generation umber for condominium verses apartment. The
development clearly is an apartment complex. This rate is slightly higher than the
condo rate. The report also took a 33% reduction in overall trip generation. This is a
significant number. Even in the most aggressive Travel demand management
scenarios we hope lor 15-20o/o reduction. Revising the traffic report to meet these
criteria and the left Turn Lanes are required at each access point. we would also feel
more comfortable pulling buses into the sight with a left turn lane.
The report was to address the availability of parking. Specifically with regards to the
Early child care leaming center. 16 spaces for this facility is not enough. We would
say during drop off and pick up upwards to 30 spaces are needed. The traffic report
should veriff if the schools were at capacity the day there traffic report was
completed.
Environmental Assessment Report
1) The environmental assessment report should use the current site plan. The report
states that the drainage is handled in a separate report. This separate report was
prepared in a preliminary format with the preliminary plan approval. That report
stated that flows will be treated with sedementation ponds which cunently don't exist
on the plan. The plan should be designed to handle the 25 year storm per our
standards. The plan will need to treat both sedementation and oil and heavy metal
runoff and treat it prior to discharging it into the creek. The plan at this time it is hard
to tell if there is curb and gufter throughout lt is assumed as the grading plan allows
for no ditches.
3)
2) The report stress allthe Green building praciices and yet one item which is not
addressed is the noise from l-70 forfuture residents. The FHWA guideline for noise
mitigation states that the development standards of communities address the impacls of
noise on future developments if the community wants to be considered for federal noise
mitigation. lt would seem the building need to address the impacts of l-70 noise with
regard to the livabilaty of this new development.
Debris Hazard Mitigation Plan and Letter report.
1) The conclusion of the report needs to have the very specific language from the
municipal code. This states that site is a geological sensitive area but development
will not increase the hazard to other propefi or structures or to public buildings, right
of way, roads streets, easements utilities or facilities or other properties of any kind.
2) There is concern the grading for the mitigation does not show up on the grading plan.
The mitigation grading limits are within the 100 yearffoodplain. The wetland
delineation needs to be extended through the mountain bell site. There is no
mitigation of the rockfallhazard.
3) The report states the full impact of the results of the mitigation measures will need to
be determined this spring. We have concems what assurances we have that the
culvert under l-70 will not be plugged as we have diverted the debris down the creek
channel. The debris mitigation report will need to model the event to show the flow
stops higher up and does not impact any other property.
coln
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