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Home My WebLink About10-039 Daily Field Reports 14A thru 17 REPORT OF CONSTRUCTION ACTIVITIES KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood—(303)989-1223 Grand Junction—(970)241-7700 To: Town of Vail Job No. 10-039 Date: 9/9/l 0 Toin Kassmel,P.E. Town Engineer Report#: 14A Sheet: 1 of 2 Department of Public Works/Transportation 1309 Elkhorn Drive Vail, Colorado 81657 Pro'ect: Lionshead Transit Center, Vail, Colorado Weather: ❑ Sunny � Cloudy ❑ Rain ❑ Snow Temp: 70°F± Construction Activities/Observations: Engineer arrived on site, as requested, to observe the installation of the micropiles along the west side of the existing parking garage. The pile group consists of 3 piles which are located approximately 6 feet west of Gridline E.0/1.0. At the time of our observation, the micropiles were installed to a depth of 43 feet form ground surface. The piles were installed using a Williams 32x injection bar and the specified grout. The subsurface conditions encountered during installation consisted of 18 feet of existing fill followed by native, dense to very dense, silty sands and gravels with scattered cobbles and boulders. The existing fill is characterized by dense, silty sand and gravel with scattered cobbles, boulders, and organics. Drilling was stopped in arder to obtain additional materials for the piles located on the north side of the parking garage. Engineer will resume observation tomorrow morning. Based on our observations, it is our opinion that the three micropiles installed along the west side of the existing parking garage, approximately 6 feet west of Gridline E.0/1.0, have been installed in accordance with plans and specifications. Katie Shaw Scott B. Myers, P.E. Field Observer Reviewed By SOIL COMPACTION TEST RESULTS To: Town of Vail KOECHLEIN CONSULTING ENGINEERS, INC. Job No. 10-039 Date: 9/9/10 Tom Kassmel,P.E. Report#: 14B Sheet: 2 of 2 Geotechnical and Materials Engineers Town Engineer Lakewood—(303)989-1223 Subject: Fill Observation and Testing Department of Public Works/Transportation Grand Junction—(970)24l-7700 18" Sanitary Sewer Line 1309 Elkhorn Drive East of Manhole 0+85.54 Vail, Colorado 81657 Lionshead Transit Center Vail,Colorado Laborator Field Depth Maximum Optimum Test Location or Dry Moisture Dry Moisture Percent Pass/Fail Soil Type No. Elevation Density Content Density Content Compaction (feet) (pc� (%) (pcf� (%) 36 Sta. 00+05 -4.0± 130.3 7.9 129.8 7.1 100 Pass Curve#1 SAND, Gravell , Silt 37 Sta. 00+10 -3.0± 130.3 7.9 130.1 6.8 100 Pass Curve#1 SAND, Gravell , Silt 38 Sta. 00+15 -2.0± 130.3 7.9 130.7 6.4 100 Pass Curve#1 SAND, Gravell , Silt 39 Sta. 00+20 -3.0± 130.3 7.9 131.2 6.0 100 Pass Curve#1 SAND, Gravell , Silt Weather: � Sunny ❑ Cloudy ❑ Rain ❑ Snow Temp: 80°F+_ �Fill Tested Meets Specifications. Specification Compaction&Material: 100°/o of Standard Proctar AASHTO T 99, ❑ Fill Tested Does Not Meet Specifications as Indicated by Test Number(s) -�2°/o to-2%of Optimum Moisture Content and Should be Removed or Reworked. Type and Number of Earth Moving Units: 1-Trackhoe, 1-Loader � Contractor Advised. ❑ Full Time Observation. � Part Time Observation. Type and Number of Compaction Units: 1-Walk-behind Wacker Progress Report: Field engineer arrived on-site,as requested,to observe and test backfill for the sanitary sewer line east of the manhole located at Station 0+85.54. Test results Number of Passes: Varies Thickness of Lift: 8 inches indicate that moisture and density tests performed at the noted locations have met project Method of Addin Moisture: N/A specifications. This repat presents opinions formed as a result of our observations and/or compaction testing of the fill during this visit. We have relied on the contractor to continue applying the recommended compactive effort and moisture to the fill during times when our observcr is not obscrving operations. Tcsts are madc of tha ffil only as bclicved necessary to calibrat¢our observer's judgment Test data are not the sole basis for opinions on whether the fill meets specifications. Mike Brath Scott B. Myers, P.E. Field Observer Reviewed By REPORT OF CONSTRUCTION ACTIVITIES KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood—(303)989-1223 Grand Junction—(970)241-7700 To: Town of Vail Job No. 10-039 Date: 9/l0/10 Toin Kassmel,P.E. Town Engineer Report#: 15 Sheet: 1 of 1 Department of Public Works/Transportation 1309 Elkhorn Drive Vail, Colorado 81657 Pro'ect: Lionshead Transit Center, Vail, Colorado Weather: � Sunny ❑ Cloudy ❑ Rain ❑ Snow Temp: 80°F± Construction Activities/Observations: Engineer arrived on site, as requested, to observe the installation of the micropiles for the proposed pedestrian bridge at the Lionshead Transit Center in Vail, Colorado. At the time of our observation, the micropiles located north of Gridline A.0-E.0 and in the area of Gridlines E.0/1.0-3.0 were installed using a Williams 51 injection bar and the specified grout. The westernmost pile in this location was installed to a depth of 50 feet from ground surface. Due to very dense cobbles and boulders encountered during drilling at the 30 to 50 foot interval, Yeh and Associates approved a reduced minimum penetration into native soils of 20 feet. The remaining piles at this location were drilled to a depth of 40 feet from ground surface. The micropiles located north of Gridline A.0-E.0 and in the area of Gridlines E.0/3.0-3.3 were installed using the same method. The piles at this location were drilled to a depth of 35 feet from ground surface to obtain the required 30 foot penetration into native soils. Based on our observations, it is our opinion that the micropiles installed north of Gridline A.0-E.0 and in the area of Gridlines E.0/1.0-3.3 have been installed in accordance with project plans and specifications. Katie Shaw Scott B. Myers, P.E. Field Observer Reviewed By REPORT OF CONSTRUCTION ACTIVITIES KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood—(303)989-1223 Grand Junction—(970)241-7700 To: Town of Vail Job No. 10-039 Date: 9/l3/10 Toin Kassmel,P.E. Town Engineer Report#: 16 Sheet: 1 of 1 Department of Public Works/Transportation 1309 Elkhorn Drive Vail, Colorado 81657 Pro'ect: Lionshead Transit Center, Vail, Colorado Weather: � Sunny ❑ Cloudy ❑ Rain ❑ Snow Temp: 70°F± Construction Activities/Observations: Field engineer arrived on site, as requested, to observe the installation of the micropiles for the proposed pedestrian bridge at the Lionshead Transit Center in Vail, Colorado. The micropiles located north of Gridline A.0-E.0 and in the area of Gridlines E.0/3.3-4.0 were installed using a Williams 51 injection bar and the specified grout. The piles were drilled to a depth of 35 feet from ground surface to obtain the required 30 foot penetration into native soils. Based on our observations, it is our opinion that the micropiles installed north of Gridline A.0-E.0 and in the area of Gridlines E.0/3.3-4.0 have been installed in accordance with project plans and specifications. Mike Brath Scott B. Myers, P.E. Field Observer Reviewed By SOIL COMPACTION TEST RESULTS To: Town of Vail KOECHLEIN CONSULTING ENGINEERS, INC. Job No. 10-039 Date: 9/15/10 Tom Kassmel,P.E. Geotechnical and Materials Engineers Report#: 17 Sheet: 1 of 1 Town Engineer Lakewood—(303)989-1223 Subject: Fill Observation and Testing Department of Public Works/Transportation Grand Junction—(970)24l-7700 18" Storm Sewer Line 1309 Elkhorn Drive Lionshead Transit Center Vail, Colorado 81657 Vail,Colorado Laborator Field Depth Maximum Optimum Test Location or Dry Moisture Dry Moisture Percent Pass/Fail Soil Type No. Elevation Density Content Density Content Compaction (feet) (pcf) (%) (pcf) (%) 40 Sta. 1+50 Grade± 130.3 7.9 130.2 69 100 Pass Curve#1 SAND, Gravell , Silt 41 Sta. 2+00 Grade± 130.3 7.9 129.9 7.1 100 Pass Curve#1 SAND, Gravell , Silt 42 Sta. 2+50 Grade± 130.3 7.9 130.8 6.5 100 Pass Curve#1 SAND, Gravell , Silt Weather: � Sunny ❑ Cloudy ❑ Rain ❑ Snow Temp: 80°F± � Fill Tested Meets Specifications. Specification Compaction&Material: 100%of Standard Proctor AASHTO T 99, ❑ Fill Tested Does Not Meet Specifications as Indicated by Test Number(s) +2°/o to-2%of Optimum Moisture Content and Should be Removed or Reworked. Type and Number of Earth Moving Units: 1-Trackhoe, 1-Loader � Contractor Advised. ❑ Full Time Observation. � Part Time Observation. Type and Number of Compaction Units: 1-Walk-behind Wacker Progress Report: Field engineer arrived on-site,as requested,to observe and test backfill for the sanitary sewer line at Stations 1+50, 2+00, and 2+50. Test results indicate that Number of Passes: Varies Thickness of Lift: 8 inches moisture and densiry tests perfonned at the noted locations have �net project Method of Addin Moisture: N/A specifications. This report presents opinions fonned as a residt of our obscrvations and/or compaction testing of the fill during this visit. We have relied on the contractor to continue applying the recommended compactive effort and moisture to the fill during times when our observer is not observing operations. Tests are made of the ffil only as believed neccssary to calibrate our observer's judgment. Test data are not the sole basis for opinions on whether the fill meets specitica[ions. Mike Brath Scott B. Myers, P.E. Field Observer Reviewed By