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Home My WebLink AboutDRB080573 Desig n Review Boa rd ACTION FORM . � Department of Community Development �r�y�' � 75 South Frontage Road, Vail, Colorado 81657 j VA� tel: 970.479.2139 fax: 970.479.2452 oo�rr�r web: www.vailgov.com Project Name: TOV WATER DIVERSION DRB Number: DR6080573 Project Description: APPROVED DRAINAGE SYSTEM: WATER DIVERSION STRUCTURE AND CULVERT Participants: OWNER TOWN OF VAIL 11/10/2008 C/O FINANCE DEPT 75 S FRONTAGE RD VAIL CO 81657 APPLICANT TOWN OF VAIL 11/10/2008 C/O FINANCE DEPT 75 S FRONTAGE RD VAIL CO 81657 Project Address: 2450 S FRONTAGE RD W VAIL Location: STEPHENS PARK,WEST VAIL Legal Description: Lot: 13 Block: Subdivision: VAIL RIDGE Parcel Number: 2103-142-0000-3 Comments: See conditions below BOARD/STAFF ACTION Motion By: DuBois Action: APPROVED Second By: Giliette Vote: 5-0-0 Date of Approval: 12/17/2008 Conditions: Cond: 8 (PLAN): No changes to these plans may be made without the written consent of Town of Vail staff and/or the appropriate review committee(s). Cond: 0 (PLAN): DRB approval does not constitute a permit for building. Please consult with Town of Vail Building personnel prior to construcaon activities. Cond: 201 (PLAN): DRB approval shall not become valid for 20 days following the date of approval, pursuant to the Vail Town Code, Chapter 12-3-3: APPEALS. Cond: 202 (PLAN): Approval of this project shall lapse and become void one(1)year following the date of final approval, unless a building permit is issued and construction is commenced and is diligently pursued toward completion. Planner: Nicole Peterson DRB Fee Paid: $0.00 r f DESIGN REVIEW BOARD AGENDA � PUBLIC MEETING 1 December 17, 2008 ��+�i Council Chambers 75 S. Frontage Road -Vail, Colorado, 81657 PROJECT ORIENTATION 12:30pm MEMBERS PRESENT MEMBERS ABSENT SITE VISITS 1:30pm 1. Qwest Tower, 165 North Frontage Road 2. Billy's Island Grill, 610 West Lionshead Circle 3. Stephens Park, 2450 South Frontage Road PUBLIC HEARING —TOWN COUNCIL CHAMBERS 3:OOpm 1. Stephens Park DRB080573/ 15 Minutes Nicole Final review of a minor exterior alteration (water diversion structure) 2450 South Frontage Road West/Unplatted Applicant: Town of Vail, represented by Tom Kassmel ACTION: MOTION: SECOND: VOTE: CONDITION(S): 2. Qwest Tower DRB080585/ 10 Minutes Bill Final review of an addition (antennas, equip shelter, generator) 165 North Frontage Road West/Unplatted Applicant: Black &Veatech Corporation ACTION: MOTION: SECOND: VOTE: CONDITION(S): 3. Billy's Island Grill DRB080595 / 10 Minutes Bill Final review of a sign 610 West Lionshead Circle, Suite C-200/Lot 1, Block 1, Vail Lionshead 3rd Applicant: Billy Suarez ACTION: MOTION: SECOND: VOTE: CONDITION(S): Page 1 � � 4. Rucksack Building DRB080609 / 15 Minutes Rachel Final review of a sign program 288 Bridge Street/Lot D, Block 5A, Vail Village Filing 1 Applicant: Rucksack, represented by Fritzlen Pierce Architects ACTION: MOTION: SECOND: VOTE: CONDITION(S): STAFF APPROVALS Reichman Residence DRB080347 Bill Final review of a minor exterior alteration (landscaping) 4240 Spruce Way/Lot 1, Block 7, Bighorn 3�d, re-subdivision lots 1,2,3 Applicant: Carol Reichman Mountain View DRB080515 Warren Final review of changes to approved plans (misc site) 434 South Frontage Road West/Lot D, Vail Village Filing 5 Applicant: Lunar Vail, represented by Ron Constein Leon Residence DRB080548 Rachel Final review of a minor exterior alteration (deck addition) 1650 Sunburst Drive, Unit 60/Lot 1, Sunburst Filing 3 Applicant: Rene Leon, represented by Extreme Builders Zug Residence DRB080578 Bill Final review of an addition (entry, living room, bedrooms) 1548 Spring Hill Lane/Lot 1, Block 3, Vail Valley Filing 2 Applicant: D. Brooks Zug, represented by Fritzlen Pierce Architects Manrico Cashmere DR6080587 Rachel Final review of a sign 242 East Meadow Drive/Lot B, Block 5, Vail Village Filing 1 Applicant: Manrico USA Inc Watts Residence DRB080588 Rachel Final review of a minor alteration (re-roofl 1170 Casolar Drive Unit B/Lot 8B, Lions Ridge Filing 1 Applicant: Barry Watts, represented by The Roofing Company Woodings Residence DRB080593 Bill Final review of changes to approved plans (landscaping, driveway, stairs) 1694 Matterhorn Circle/Lot 12, Matterhorn Village Applicant: Ted Woodings, represented by John Martin Big Bear Bistro DRB080594 Rachel Final review of a sign 304 Bridge Street/Lots E, F, Block 5A, Vail Village Filing 1 Applicant: Vidette Gehl, Big Bear Bistro Page 2 � � Timberline Lodge Redevelopment DRB080606 Warren Final review of changes to approved plans (extension of DR6070687) 1783 No�th Frontage Road West/Lots 9-12, Buffehr Creek Resubdivision Applicant: Timberline Lodge Redevelopment, represented by Greg Gastineau The applications and information about the proposals are available for public inspection during regular office hours in the project planner's office, located at the Town of Vail Community Development Department, 75 South Frontage Road. Please call 479-2138 for information. Sign language interpretation available upon request with 24 hour notification. Please call 479-2356, Telephone for the Hearing Impaired, for information. Page 3 . , Development Review Coordinator Commun�ty Devdopme�t DePardngr� ^ :. 75 South Frontage.Raad;udil,CGlo.rado��657 tel:970.479.212$ �ax �7�A�4�45Z � web�w�rw�Cgov:cpm: � ' . . . , .�r � .. . : ; ��l�� _ Apptication for Design Review Minor Exterior Alterations General information: This application is required for all proposals tnvolving minor changes to buildings and site improvements, such as re- roofing, painting, window additlons, landscaping, fences, retaining walls, etc. Applicable Vail Town Code sections can be reviewed on-line at www.vailgov.com under Vail Information - Town Code On-line. All projeds requiring design review must receive approval prior to submitting a building permit appliration. An application for Design Review cannot be accepted until all required infoRnation is received by the Community Development Department,as outlined in the submittal requirements. Design review approval expires one year from the date of approval, unless a building permit is issued and oonstruction commenaes. Fee: �250 for Multi-Family/Commeraal #20 for Single Family/Duplex DescriptionoftheRequest: Coc�t�;ci��n � s��ll �c.{er ��u�s;Gn �fin�Gtvt� �.�;1��n Sl�.p��u �t�J�- �1 l.l�� VU�) 1-2� iMP1�ap �__�i,� al��u t,�iz_�S�C' ao �v2c� W�.il�CrO� S � � � �� 1; 1�i,� Single Family Duplex Multi-Family N�� Location of the Proposal: Lot: Block: Subdivision: PhysicalAddress: �Zp1U�S �o,t4-; U�s�d�' �iCJ��, �'�70 S 0►�l'�'�� W Parcel No.: 2�bv�(�"� �AO Gt�3 (Contact Eagle Co.Assessor at 970-328-8640 for parcel no.) Name(s)of Owner(s): Y n Vtx,i Mailing Address: �o � � • `S' � *' � � �J�" .�� `�� Phone: q�0 �- LI�"�t '"ZI00 ��_�P�,`� Owner(s)Signature(s): �`,7��W7�+^'� G Name of Applicant: � Q iv�Pl 1,�� 0.�c� ��cvl(�'��1 ��'1 c�+ � �o �2�'P. �i(�� Mailing Address: ��la �a�� 12.(�c�r�� va.�� (1 ��105�}' Phone: ��0 ��Co � �y'�i0 E-mail Address: �,Mi��P� 4 .�' LuS�Q. c^ra Fax: �'i�l � �� ' �0�� — For Office U � Fee Paid: Check No.• By: � Meeting Date: ( D v DRB No.:��«_ol� 1� Planner: � Project No.: O� ` �`�'�� — am � November 7, 2008 Nicole Peterson Town of Vail, Community Development 75 South Frontage Road Vail, Colorado 81657 n peterson @va i Igov.co m RE: Seeking approval for a small water diversion structure at Stephens Park to maintain a USACE-approved wettand mitigation site Dear Nicole: The Eagle River Water&Sanitation District(the District) is preparing to install a diversion structure on a small perennial tributary of Gore Creek in Vail, Colorado in order to redirect water during high flow periods into a nearby wetland mitigation site, referred to as the Stephens Park mitigation site. The tributary is located on the south side of the Vail Valley and runs through Stephens Park, a Town of Vail maintained facility, before reaching Gore Creek. The purpose of this project is to improve hydrologic conditions of the 1.04-acres Stephens Park mitigation site, which is located on Town of Vail property and managed by the District(Exhibits A and B). In 1992, the District enlarged the Black Lake No. 1 reservoir, located near Vail Pass. The wetland mitigation plan for this enlargement was approved under United States Army Corps of Engineers (USACE) Permit No. 9560 and an Eagle County 1041 Permit (Resolution 91-12), and involved the creation, enhancement, or restoration of wetlands at six locations in the Gore Creek watershed, including Stephens Park. The wetland sites must be maintained to meet the original mitigation goals. For the Stephens Park site, this includes the establishment of suitable wetland hydrology. For approximately the past 10 years, the site has been irrigated during the growing season using treated water with a combination drip/sprinkler head system. Recent inspections of the site have identified irrigation deficiencies; portions of the site are not receiving enough water to promote true wetland hydrology. Even the areas that appear to have saturated soil conditions during some period of the growing season are only marginally meeting this requirement. The proposed diversion will enhance the hydrology of the low-lying wetland mitigation site by supplementing the treated water irrigation system to meet the original mitigation requirements. Gregg Barrie and Todd Oppenheimer, of the Town of Vail, attended a site inspection with myself and Pete Miller, of the District. Gregg and Todd both expressed support of the diversion concept presented herein. During spring flood conditions, when there are free river conditions, water will be diverted from the above-mentioned tributary into the upper(northeast)end of the mitigation site (see Exhibit C). The tributary will continue to deliver base flows to Gore Creek during periods of diversion. Spring runoff water diverted into the mitigation site will inundate and/or saturate the soil, returning to Gore Creek either via surface flow or AMEC Earth&Environmental 1002 Walnut Street,Suite 200 Boulder,Colorado 80302 Tel: 303.443.7839 Fan: 303.442.0616 www.amec.com November 7,2008 Page 2 infiltration. The existing irrigation system will be used for the remainder of the growing season. Historically, the irrigation water supply for Stephens Park has been provided from the irrigation sprinkler system that is connected to the DistricYs domestic water supply for the Town of Vail. The water rights for irrigation at Stephens Park are therefore included in the District's water supply system Decree and Augmentation Plan (District Court, Water Division No. 5, Case No. 82CW3281). The proposed diversion will only be utilized during "free river"conditions, which typically occurs in May and June (sometimes extending into July and August). This will allow for the use of raw water during a good portion of the irrigation season, thus reducing the demand on the domestic treated water supply system. There will be no changes in the area being irrigated or the overall consumptive use, so no additional water rights will be needed. As the attached schematic plan demonstrates, the diversion structure will be constructed on the south side of the existing walking path, outside of the FEMA-approved 100-year floodplain (Exhibit C). (Note that elevations on Exhibit C were derived from comparison with the known elevation of a manhole located in the middle of the lawn, MH0930). Water from the tributary will enter a 4-foot by 7-foot by 38-inches deep concrete vault. The vault will be covered by metal grating for safety, while allowing overflow to spill over the top of the structure if necessary. The vault will be buried as much as possible, with earth piled up against the outside borders to conceal any exposed walls. The vault will have outlets for the existing two culverts that go under the walking path, in addition to a slightly lower elevation outlet leading to the proposed culvert. A gate will be used to control flow into the proposed culvert, which will consist of a buried 12-inch diameter corrugated steel pipeline that will run under a lawn and into the wetland mitigation site. The buried pipeline will be approximately 80 feet long. Design plans are provided in Exhibit D. Please note that Tom Kassmel, Town of Vail Engineer, indicated to me that submittal of hand-drawn plans would be sufficient in an October 3, 2008 telephone conversation. Less than 12 inches of pipe will be exposed at the outfall of the conveyance route to allow the water to enter the mitigation site. This small section at the end of the pipeline will encroach upon the 100-year floodplain very slightly, but will not have a negative impact on the floodplain elevation. During a 100-year flood event, some water may go back up the pipeline, but this will be minor and will not cause any damage to private property. � During spring flood conditions, when there are free river conditions, the gate leading to the wetland mitigation site will be opened. Adjustments will be made to the gate level such that base flow will be maintained through the culverts that lead to the existing tributary. All other times of the year, the gate leading to the mitigation site will remain closed. No information is currently available on the flow in the unnamed, perennial tributary. A suitable calculation has been developed to enable flow measurement in the 1 Note that the Vail Valley Gonsolidated Water District,the original applicant for Case No.82CW328,was a predecessor to the Eagle River Water&Sanitation District. � AMEC Earth&Environmental November 7,2008 Page 3 new culvert, based upon a simple water depth measurement taken at the end of the culvert. Appropriate best management practices will be employed to prevent sediment from entering Gore Creek during construction of the diversion structure and conveyance. In addition, construction is planned to take place in November, which is a relatively low flow period. This will also serve to limit the mobilization of sediment. Vegetation along the tributary is dominated by willows. Care will be exercised to impact as little vegetation as possible; if necessary, willow cuttings will be replanted in disturbed areas. The conveyance route is predominantly lawn, which will be reseeded after construction. Similarly, the area where the pipeline enters the wetland mitigation site will be reseeded, if necessary, with an appropriate native seed mix. In a September 30, 2008 letter, the USACE approved construction of a diversion structure and conveyance route to improve the hydrology of the mitigation site (Exhibit E). This approval was necessary because the diversion structure will be impacting a small area of Waters of the United States and associated wetlands, both of which are regulated by the USACE. As you requested, I have also attached November 3, 2008 email correspondence from you regarding fee waivers and the approval process, as well as a completed Town of Vail Application for Design Review for Minor Exterior Alterations � (Exhibits F and G). On behalf of the District, I would like to request your authorization to proceed with the construction of this project as a remedy to the insufficiently acting mitigation area. Sincerely, AMEC Earth & Environmental, Inc. �� `� Becky E. MacKnight Enclosures Exhibit A: Location map for Stephens Park wetland mitigation site, West Vail, CO Exhibit B: Stephens Park aerial photograph, showing mitigation site and inset map of Exhibit C Exhibit C: Schematic plan view drawing of proposed diversion structure and culvert and FEMA 100-year floodplain Exhibit D: Design drawings Exhibit E: Approval letter from the United States Army Corps of Engineers Exhibit F: Application for Design Review, Minor Exterior Alterations Exhibit G: Email correspondence from Nicole Peterson, Town of Vail, regarding fee waiver and approval process AMEC Earth&Environmental Page 1 of 2 Nicole Peterson - RE: Stephens Park - DRB info From: "MacKnight, Becky" To: "Nicole Peterson" Date: 12/03/2008 9:09 AM Subject: RE: Stephens Park- DRB info Hi Nicole, Thanks for looking at those materials. I will put together more items to address your comment letter in the next few days. Unfortunately, it would not be possible to push the diversion structure further off the path. Doing so would be very difficult(to impossible?)from a hydraulic perspective and would cause significantly more wetland impact. Many thanks, Becky Becky MacKnight Geologist/Water Resources Scientist AMEC Earth and Environmental 1002 Walnut Street,Boulder,CO 80302 Tel+1 303.443.7839 Fax+1 303.442.0616 �ecky.macknight(�amec com www.amec.com From: Nicole Peterson [mailto:NPeterson@vailgov.com] Sent: Wednesday, December 03, 2008 8:38 AM To: MacKnight, Becky Subject: Re: Stephens Park- DRB info Looks good for the culvert, now just something for the grate. Other planning staff suggested to maybe move the grate and structure off the path - back farther(maybe 10 feet?), would that be possible? Then screen it with landscaping? Let me know,Thanks so much! Nicole � Nicole M.Peterson,AICP Planner II Town of Vail,Community Development 75 South Frontage Road Vail,Colorado 81657 PH: 970.477.3452 FX: 970.479.2452 npetersonna�,vailgov.com »> "MacKnight, Becky" <Becky.Macknight@amec.com> 12/02/2008 1:46 PM »> Hi Nicole, I have spoken with my client, Pete Miller, and he are amenable to having us get together the information you need for DRB approval at Stephens Park. As a beginning, I have pulled together some information to address Comment#2 in your letter about the culvert outfall. Would you please take a look at the attached document and let me know if it would address your questions for Comment#2? I am still hoping to have information ready to address all of your comments by December 8th, so that the project file:UC:�Documents and Settings�Administrator�I,ocal Settings\Temp�grpwise\49364C... 12/03/2008 Page 2 of 2 can be addressed at the December 17th DRB meeting. Many thanks, Becky Becky MacKnight Geologist/Water Resources Scientist AMEC Earth and Environmental 1002 Walnut Street,Boulder,CO 80302 Tel+1 303.443J839 Fax+1 303.442.0616 becky macknightQamec.com www.amec.com The information contained in this e-mail is intended only for the individual or entity to whom it is addressed. Its contents (including any attachments) may contain confidential and/or privileged information. If you are not an intended recipient you must not use, disclose, disseminate, copy or print its contents. If you receive this e-mail in error, please notify the sender by reply e-mail and delete and destroy the message. file://C:�Documents and Settings�Administrator�L,ocal Settings\Temp�XPgrpwise\49364C... 12/03/2008 Page 1 of 2 Nicole Peterson - RE: Stephens Park - DRB info From: "MacKnight, Becky" To: "Nicole Peterson" Date: 12/03/2008 9:09 AM Subject: RE: Stephens Park- DRB info Hi Nicole, Thanks for looking at those materials. I will put together more items to address your comment letter in the next few days. Unfortunately, it would not be possible to push the diversion structure further off the path. Doing so would be very difficult(to impossible?)from a hydraulic perspective and would cause significantly more wetland impact. Many thanks, Becky Becky MacKnlght Geologist/Water Resources Scientist AMEC Earth and Environmental 1002 Walnut Street,Boulder,CO 80302 Tel+1 303.443.7839 Fax+1 303.442.0616 becky.macknight({�mec.com www.amec.com From: Nicole Peterson [mailto:NPeterson@vailgov.com] Sent: Wednesday, December 03, 2008 8:38 AM To: MacKnight, Becky Subject: Re: Stephens Park- DRB info Looks good for the culvert, now just something for the grate. Other planning staff suggested to maybe move the grate and structure off the path - back farther(maybe 10 feet?), would that be possible? Then screen it with landscaping? Let me know,Thanks so much! Nicole Nicole M.Peterson,AICP Planner II Town of Vail,Community Development 75 South Frontage Road Vail,Colorado 81657 PH:970.477.3452 FX:970.479.2452 nneterson e,vailgov.com »> "MacKnight, Becky" <Becky.Macknight@amec.com> 12/02/2008 1:46 PM »> Hi Nicole, I have spoken with my client, Pete Miller, and he are amenable to having us get together the information you need for DRB approval at Stephens Park. As a beginning, I have pulled together some information to address Comment#2 in your letter about the culvert outfall. Would you please take a look at the attached document and let me know if it would address your questions for Comment#2? I am still hoping to have information ready to address all of your comments by December 8th, so that the project file://C:�Documents and Settings�Administrator�L,ocal Settings\Temp�XPgrpwise\49364C... 12/OS/2008 Page 2 of 2 can be addressed at the December 17th DRB meeting. Many thanks, Becky Becky MacKnight Geologist/Water Resources Scientist AMEC Earth and Environmental ' 1002 Walnut Street,Boulder,CO 80302 Tel+� 303.443.7839 Fax+1 303.442.0616 becky.macknight o amec.com www.amec.com The information contained in this e-mail is intended only for the individual or entity to whom it is addressed. Its contents (including any attachments) may contain confidential and/or privileged information. If you are not an intended recipient you must not use, disclose, disseminate, copy or print , its contents. If you receive this e-mail in error, please notify the sender by reply e-mail and delete and destroy the message. file://C:�Documents and Settings�Administrator�I,ocal Settings\Temp�XP�rpwise\49364C... 12/OS/2008 am SENT VIA EMAIL December 3, 2008 Nicole Peterson Town of Vail Department of Community Development 75 South Frontage Road Vail, CO 81657 npeterson@vailgov.com RE: Response to November 17, 2008 Comment Letter regarding DRB application DRB08-0573 for the proposed Stephens Park diversion structure Dear Nicole: Attached please find responses to your Comment Letter, dated November 17, 2008, regarding the proposed Stephens Park diversion structure (application# DRB08-0573). I am submitting these materials on behalf of my client, the Eagle River Water& Sanitation District. As we discussed, it is our intention that the materials herein will provide you with sufficient information to evaluate this project at the December 17, 2008 DRB meeting. For your reference, I have also enclosed updated design plans, which have some modifications from those I sent with the original DRB application on November 7, 2008. Please feel free to contact me if you have any questions or if you require additional information. Sincerely, AMEC Earth & Environmental, Inc. �� Becky E. MacKnight cc: Peter Miller, Eagle River Water&Sanitation District Enclosure AMEC Earth 8 Environmental Tel: 303.443.7839 1002 Walnut Street,Suite 200 Fax: 303.442.0616 Boulder,Colorado 80302 www.amec.com ame COMMENT 1 NOTES 8� FIGURES AMEC Earth& Environmental ! . � . 1 �� TL7iJ.� , Department of Community Development 75 South Frontage Road Yail, CO 81657 PH: 970-479-2138 FAX.• 970-479-2452 www.vailgov.com November 17, 2008 Becky Macknight AMEC Earth and Environmental 1002 Walnut Street Boulder, CO 80302 Via email: becky.macknightCa�amec.com RE: DRB08-0573 Dear Becky, Thank you for your design review application (DR608-0573) for installation of a diversion structure and culvert at Stephen's Park, 2450 S. Frontage Road W, Vail, CO. In reviewing the application, I have a few comments and requests, listed below. As you read the requests, please keep in mind that the Vail Town Council appointed the Design Review Board to review all development and redevelopment in the Town of Vail, with the following objectives (Section 12-11-1, Vail Town Code, in part): 1. Recognize the interdependence of the public welfare and aesthetics, and to provide a meth�by which this inte�dependence may continue to f�nefit its citizens and visitors. 2, Al/ow for the deve%pment of public and private property which is in harmony with the desi�ed cha�acter of the town as defined by the guide/ines herein p�ovided. 3. Prevent the unnecessary dest�uction or blighting of the natu�al/andscape. 4. Ensure that the architectu�a/design, /ocation, configu�ation materials, co%rs, and overa/l treatment of built up and open spaces have been designed so that they�e/ate ha�monious/y to the natural landforms and native vegetation, the town s overa// appea�ance, with su�rounding deve%pment and with o�cial/y approved p/ans or guide/ines, if any, for the a�eas in which the structures a�e proposed to be/ocated. 5. Protect neighbo�ing property owners and users by making sure that�easonab/e provision has been made fo�such matters as pedestrian and vehicular traffic, surf'ace water drainage, sound and sight buffe�s, the preservation of light and air, and those aspects of design not adequate/y cove�ed by othe��egu/ations which may have substantia/effects on neighbo�ing land uses. Page 1 of 2 ?' . c. With the above objectives in mind, please submit satisfactory responses and/or plans as requested below, by Monday, November 24, 2008 at 5pm, to continue to the December 3, 2008 Design Review Board meeting: 1. Please submit a rendering, cut-sheet and/or photo example of the proposed diversion structure including: a. Illustration of the top of the structure, visible to the public b. Label all exterior materials and colors c. Show any and all e�erior utility features d. Please include details of any above ground equipment that will be visible to the public �lease submit a rendering, cut-sheet and/or photo example of the proposed culvert outfall including: a. Label all exterior materials and colors b. Show any and all e�erior utility features c. Please include details of any above ground equipment that will be visible to the public 3. Site and landscaping plan including (Exhibit C is a starting point for this plan): a. Scale of 1"=20'or 1"=10' b. Property and setback lines (show the setback from proposed structure to the existing walkways and creek) c. Existing and proposed easements d. Existing and proposed layout of buildings and other structures � e. Location of existing trees, 4" diameter or larger. Indicate trees to remain, to be relocated (including new location), and to be removed. Large stands of trees may be shown (as bubble) if the strand is not being affected by the proposed improvements and grading. f. Indicate the location of all proposed plantings. g. Landscaping summary including the botanical and common names, size and quantity of trees to be removed and proposed trees. The minimum size for proposed trees is 2"caliper deciduous trees, coniferous trees that are six feet in height, and 5 gallon shrubs. Also specify types of groundcover and proposed square footage. Include a description of any other landscaping features. h. Limits of disturbance fence illustrating all areas to be disturbed during construction i. In the areas of disturbance, indicate all existing and proposed ground cover and shrubs. 4. Exterior color and material samples and staking of the site, may be required for the meeting. Thank you for your time and consideration. Please call or email me with any questions or concerns. . Best Rega s, Nicole Peterson, PI �r II nceterson@vailgov.com Ph: 970.477.3452 CC Tom Kassmel,Town Engineer Pam Brandmeyer, Assistant Town Manager Page2of2 (12/02/2008) Nicole Peterson -Stephens Park Wetlands Page 1 From: Tom Kassmel To: Nicole Peterson Date: 12/02/2008 8:24 AM Subject: Stephens Park Wetlands Nicole, AMEC and ERWSD have addressed all of my comments with the resubmittal last week. ��7,�� av� �1, Re r w.�-E - �','P''� � � MUST BE SUBMITTED AND APPRaVED PRIOR TO R�LEASE OF PUBT.TC WAY OR BUlLD1NG PERMlT APPLICATION E'OR FIAODPI.AYN USE PERMIT e�r�: P�g-aO�'� rownocvffit F�: ��aG3 PubGc Warl�DepE Pac�cd�: Z►�3-C�Z -�-�3 1309 Elkhora Dc BJd�Permit�4• B - Yail,CQ 81657 ... WARNYNG: lncl�ion of false infotm�tion in d�is pcnuit sppfication eataMishes an au�natic danial fa a Floodpla�n Usc Pamit and forfcilwe of appliation faa ey signinR this pamit,We appliamt da�a t�dshe bas rcad aU oa�teNs of this documcnt wd'['Stk 12-21 of the Town oi Vail Codc Applicatian Fc�S30Q.00 AppIIdnt N�: ��,IP �2,v e,- U,Y��v__ r,,.�c� Pboae: �i�0- zi�4- }�{80 Srtni�a�� 1�i3�(1c. AppUcautAddresx Q�L1lo �t�tQ�k 1ZaGr. T p�d �Jlt� . � $IbS�' Contractor N� APP�t Lieense Number: .�c.�lQ R.�,� ��e� o�� Sw,��u�� ,a: —P''"t Ile,� �e c��_ +E}�s�id' co.�uc Co'mct N� �� 1iQ!' PYoaa 9� -4 (e- 54 ' \ FEMA Floodplaio Pauel lYnmber.�5(p Uf 11 Z5 �u►rros�e s�Nn�r: 5 �see a�d. thttp://msGfiema.gov FB11L4.4dop�d FYoodploi,t Decunber4';2�07� Floodplaia Use Locatioa(Addre�or Lot&Bfock): ,�2�h2 S pCc��E- �W�' �}G�;� Rioodplain Use lksctiption(PurPose): T'fl � �c .t►� �l �. �r►{� � l�kC�-ap�al �� i�e�l�v�al �n..�fi�tticn a'tt�£. uates o[vse: �Urnna� Z�d� for a p�o.d c� lr�S ��n �' �• �Ryl� o�� [w��NUc�Vr►wh 3 A„c�� fiw•.r d� t-� c�aaB�.r tcnd��.) Mbiaaui Rcquire.d Sabmitbla-(Ad�Nonal sobaibfals maY be re9uired on s case by case basts): p SiEe plan at an englneering sEa[e showiru�the location,dimensions,and elevatians of the propoaed ' Iar�dsc�apeJgrade alterations,ex�dng and proposed structures.relevant landscapeltopographic i+eatures,and the Ixation of the foregoing in relation t,o U'ie one hundred year floodplain.The Aoodplain line shalf be provided on a pten oer6fied by a C�sed professionad engir�eer or land s�uveyrx. Surve m sl�all O Defailed bopographtc cross�lons provided by a lioensed professiona�surv�y�ar of 1he area proposed�o be atlered�showing existing artd p�+o(�o�ed oond�tions• o Oesaiplion af tl�e ex6ent fia which any floodplatn w�be�inc�udiny�whY.when�ho+"�and yv{�it wil be replaced back to its original coMrgurai6on,and add�essing�d'i nelevant cxiteria in Subsectlon 12-29-11 E-3. � Copy of�t other neoessary approved Permits(i.e.ACAE permi�.Dewaterin9 P�.�� COHPE permit,e�c.,.} 17 If requ�red by the Floodplain Admir�isUator�an engineere�floodp�ain ac►alysis of the Imp�ts to the floodplain pr+epered bY a 4uaGHed Acensed prc�fessional engineer. o Submitbed application for a oonditia�al FiRM and floodway revision through FEMA�if apPlicable. Applicaat mast coutact Ptiblic Works Department at 479-2],98?A hou�s prior to wmmeneiag of worlr. Failurc w notify the Town will ranh in fafeiture of bond money. �„�r+ir, �R-sO�S st�. t�'�, r. ' s 1- -� Print Appticaat Nuac A � OFFI 119F.' .Y �L��'fT�fJ� �e 1 q � �/"�O Appcoved L]Denied Co�tD�710ns �`b Rnet �� Ravicvr B Drle Comments P:15S7-Wqland�lnspecuon dc Mauqea�noe Ptopain for Black Lske No llPhafe 004-$topheas Pa�k�.Town ef Vail AgprovallFidPlnU�tFo�it �AP�'�� am Navember 21, 2008 SENT VIA EMAIL AND U.S. MAIL Mr. Tom Kassmel, P.E. Town Engineer, Town of Vail 1309 Elkhom Drive Vail, Coloradv 81657 TKassm el @vai Igov.com RE: Acfditional information for approval of a small water diversion structure at Stephens Park to maintain a USACE-approved wetland mitigation site Dear Tom: As you requested in a November 13, 2008 email, 1 am writing to amend the letter I submitted to the Town of Vail on November 7, 2008 to meet your requests for additional information regarding the proposed small water diversion structure at Stephens Park. This work is being planned by the Eag1e River Water 8�Sanitation District(ERWSD). Please find the supplemental information below,with numbers corresponding to the itemized requests in your November 13, 2008 email. 1. The proposed design will include burial of the culvert at least 12 inches. The only exception will be a slight, necessary thinning of the overburden just as the culvert reaches the outFall location within the wetland mitigation site to allow the culvert outFall to surface. 2. We have revised our plans to incorporate a half wall at the intake, as you requested. Please see revised plans attached as Exhibit 1. These plans shou/d replace fhose submitted to the Town of Vail on November 7, 2008. To accommadate your suggested changes, the diversion box dimensions have been increased from 7 feet long by 4 feet wide to 7.5 feet long by 4 feet wide. Also, to clarify, the top of the grating will be approximately 0.4 feet below the elevation of the walking path. See Exhibit 1 for additional changes and notes. 3. Information on restoration and erosion control was covered in the original November 7, 2008 Town of Vail submittaL 4. Information on wetland plant reseeding and/or replanting was covered in the original November 7, 2008 Town of Vail submittaL 5. Approximate limits of disturbance for fihe proposed project are shown on Exhibit 2. 6. Existing grading at the site will no#be modifled. To ensure this, ERWSD has agreed to complete a pre-and post-construction survey of the site. Results of AMEC Earth&Environmental Tel: 303,443.7839 1002 Walnut SVeet,Sulte 200 Fax: 303.442.0616 Boulder,Colorado 80302 www.emec.com Mr.7om Kassmel November2l,2008 Page 2 the surveys will be submitted to you upon completion of the project. Please see Exhibit 3 for an email from Peter Miller, Project Manager for the ERWSD, stating their willingness to complete the necessary surveys. 7. Douglas Laiho, P.E., of AMEC Earth & Environmentai, has provided a stamped letter indicating that there will be no adverse irrtpact to the floodplain from the proposed work at Stephens Park. This letter is included as Exhibit 4. The ariginal stamped letter has also been mailed to you for your records. 8. Peter Milier has also agreed that the ERWSD will taEce responsibility for any complications that arise from the intentional flooding of the wetland mitigation site that this proposed project is planning (e.g., soour,weed oontrol, etc.). He has stated this in the email induded as Exhibit 3. 9. I have also included a completed, signed Floodplain Use Permit (see Exhibit 5j_ We had originally hoped to construct the diversion structure in November 2008, but given delays and weather conditions, the work will likely be put off until the summer of 2009. As construction plans are solidified,the ERWSD will oontact the Town with firm dates;work should only take a day or two, but no more than seven days. [t is our hope that this letter has provided you with all the additiona! information you need to evaluate the project. Please feel free to contact me if you have any further questions. Sincerely, AMEC Earth 8� Environmental, tnc. �`� '4� Becky E. MacKnight cc: Nicole Peterson, Town of Vail Planner(via email only, npetersonCcDvailpov.corrtl Tom Miller, ERWSD (via email only, pmillerCaaerwsd.org) Enctosures: Exhibit 1 Revised Design Drawings Exhibit 2 Limits of Disturbance Exhibit 3 Email from Peter Miller, ERWSD Exhibit 4 Floodplain Impact Letter from Dougias Laiho, P.E. 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' � � __. ...... ..___._... _ � _ . . ,T._._�-____�_.. I , , , � . , � , , , ; , _ __ __ _. _ , _, __._...__... ...�__.....___ , , _.____.a____ � _. _ _. � _,__ . i ..___�--, , -�-- , � ' I _ -, �. i._._ � � 'r i , . ; � , , , , � , : , � , 1 , , � � i I � � __.__--- _. . _.. --- ---..__ _ _� , , , , , � -..__ __.._ .._._ . . ..._.. .. ... . .._:�.. .., J_.. . _----._.. ... , ` , { ame Exhibit 2 Limits of Disturbance .e ,. R. - -..� G. .., . .1. . •.R . �w . � ��°' _ �z �". _ �� __ � �A` .. � q� ( • . �. ��' . Y - „ 3°,�� . _ `°"�. - �, y�; - �' �= X � � .��. � - � �' �..�� + _ „ � � $�` ,,, �, t , '�' ? � � � �� R �� R �� . ^ � �c • ^�, °y ' c : s y ~' „�. _ . . �`` _ ' ,. � � � �r"-� : � ;. .. , . � � ,�: � � a. .;�, y � ♦ - w �• _��° " ^ — .� �c � ♦ � W t� � � �'_�,�� i �� ` � _ ,_ B � '�, �� ;�� ;,;, , _� , r ..— � �. . .� � �:� � -�� V � n �` ' . V � O , � , , - � � � i�� ' � + �F _ .� ;�,,c a ;� � _. t h '. :. .- � � : � �,: : k . ,v � i� � '- � -- �� £� � ., • .� . -..� . � ' h . a. .. - �F�" _ V`_ � :y ' ^� '�;,�. � . , .. �, . _ �-.. `�'�.��a - - � �' . � d ,�_ ,� �- "�� - � � a � _ �-� �� . . . b . _ . _� -= _ � t, i ' � _ ,�. �� . . — ��:� � . ., : ,' ,� � .. �, 4 - 'arC' � s+F'. �A:'. . �o 1�' � _. �Y� � � - �� . �� _. a, � -� _ �,: �� .�� $ �- .: __ � � �� ;_�-��i _ � ;�� - �. ' � � ,� , ;. , �l -. � � '�s � � . �� " ; _ �: -,�. s t s_ , �� ' _. .t, �- ,°i... .. �_4`�_ ' , Comment 3 Notes: Please refer to the following annotated aerial photograph that provides a schematic of the proposed diversion structure and culvert at Stephens Park. There is no new landscaping planned for the proposed project. A very limited area of disturbance will be impacted, as demarked by the dashed orange line. The grassy area that will be disturbed will be reseeded after construction and watered as necessary. In addition, any disturbance to the walking paths will be repaired to meet existing standards. No significant grading changes are proposed. Willows (Salix spp.) are the dominant vegetation at the proposed diversion structure site and the outfall location within the wetland mitigation site. No damage to trees is anticipated. Areas where willows are damaged will be replanted with willow cuttings and watered as necessary after construction. A wetland seed mix will also be added to impacted areas as needed. From: Pete Miller [pmiller@erwsd.org] Sent: Friday, November 14, 2008 10:55 AM To: MacKnight, Becky Cc: Todd Fessenden Subject: RE: Stephens Paark Hi Becky, Thanks for keeping the balf ralling. ERWSD would agree to pre and post construction surveys, and will �eal with patentiai negative impacts to additional water in the wetlands. Let's shoot for construction in �ummer of 2009. �incerely, Pete Miller From: MacKnight, Becicy [mailto:Becky.Macknight@amec.com] 5ent: Friday, November 14, 2008 10:37 AM To: Pete Miller Subject: Stephens Park Hi again Pete, I heard back from Tom Kassmel and it looks like he just needs a few revisions from us and we will be good ro go. As a stipulation of their approval, the Town will require pre- and post-construction surveys to ensure that �ve have not made any significant changes to the local topography. fs this something the District is amendable with? �n addition, the Town is requiring that, "ERWSD must agree to deal with any negative impacts the �dditional water may have on the area, specifically wi#h regard to any scour at the outfal! into the creelc at Ihe bridge and the Towns ability#o do typical weed management." Would you agree to this? Steve is out today, but I will have him get necessary revisions and an engineer-stamped letter indicating rheir will be no signifcant irnpact fln the floodplain to Tom early next week. I apologize for the delay in aetting this permitting together. I am not sure wha# conditions are like up in Vail, but it looks like this may �ave to wait untif next year to start construction. I will keep you up to date on any information f get from rhe Town. Vlany thanks and have a great weekend, 3ecky Becky MacKnight 3eologist!Water Resources Scientist 4MEC _arth and Environmental 1002 Walnut Street,Boulder,CO 80302 rel+1 303.443.7839 Fax+1 303.442.0616 �eckv.mackni htCa�amec.com � ... .._.,__..,.,,,.. ..,...... .. . ..,_.._ . �,..,.....,.. ,.,...... .,...,... .. ......�....... . �,..__ . . . .. __. ...,....___.. ._ ._ ... .... n�ww.�com The information conta.ined in this e-mail is intended only for the individual or entity to whom it is addressed. Its contents (including any attachments) may contain confidential andlor privileged information. If you are not an intended recipient you must not use, disclose, disseminate, copy or print its contents. If you receive this e-mail in error, please notify the sender by reply e-mail and delete and des�roy the message. �� November 17, 20Q8 SENT VIA EMAIL�t�N� �tR 1L� Mr. Tom Kassmel, P.E. Town Engineer, Town of Vail 1309 Elkhorn Drive Vail, Colorado 81657 TKassmel@vailgov.com RE: Floodplain irnpacts from the Proposed Stephens Park Diversion Structure Dear Tom: I have reviewed the plans submitted to the Tawn of Vail for the Stephens Park diversion structure to support hydrolagy in a United States Army Corps of Engineers-approved wetland mitigatian site. These plans were presented to the Town by AMEC Earth & Environmental on November 7, 2008, an behalf of the Eagle River Water& Sanitation District. There are no material ground surface modifications associated with this proposed work. The only above ground component of the project within the floodplain would be a section of 12-inch diameter corrugated steel pipe, less than 12 inches in fength. This component is too small to reasonably be cansidered a floodplain change that woulc! be reflected on a hydraulic model of this area. This insignificant feature will have no measurable effect on the floodplain or water surface elevations in this area. The smal! diversion project praposed at Stephens Park by the Eagle River Water& Sanitation District wil! not change the flood conveyance characteristics of the floodplain. Sincerely, AMEC Earth & Environmental, lnc. o�Ap 0 RC��s � ��e�ea�,�• jC� � �c� R °. � c�o J �� la . Laiho, Colorado P.E. 16 26 :4 ,�� Qs� /�j7 08 �; • . ;�� s��NAL EC1�1��, AMEC Earth 8�Environmerrtal Tel: 303.443.7839 1002 Walnut Street,Suite 200 Fax: 303.442.0616 Boulder,Colorado 80302 www.amec.com ame Exhibit 4 Floodplain Irrtpact Letter from Douglas Laiho, P.E. � �� m q � � � 0 1 � eee a.��' m� �o Y�,o � � ° dc�m{_d d V2 T � � �� GN ��do� � � � s o , � S �- �w � v« � I � < �� Y 0"� ��.m °u�� 0 Q - G i d � 3 �°� W.� c� m m � � � � � � � � �� s� Wo �� J �� 2 � 0 W � � � �mmm� � � � C = O O �Q '� � . �� $�E��y J C � W � U e° � $ ��' � � � 'E��'�� a � o a � W � - 3 �-W � a� `.� . • .� b�y� u u. 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The outfall itself will be difficult for the casual observer to see due to high grasses and other vegetation. �A ` � �� -Y 1-t �•t �Ff .d'' .` �'-_ ��, r� >w '`r `,. �a�i �. 1 � �. 1, - ;� e u�� : . ��. - � - . ' - r -;�i: ° �, ,� ; ° ._.< � �� . �, �.� _ qt � �,` �.�f� _ .�j:� �� „+�f r=>.° - r , �r f.•� ,. _. , "� �.;� 's• j� s �,� �'� i� ��_* ' .. . � . , . ��sy�t� ' ', � i��- ' � f �+�' i. , '�� i.��•,.. '#t.. � � ' . � � � t � � �� '�`� ��t �'Y`l�� Yt� �'i��r,l�"*(" i��`� ` ' � �� ".►r �xr. ` �?�i�t,�.�;_ � ! � � ��' �,t{' f � " �' ^ . �� +. ,.�sw_ i} . , _ ��i � ��A4r . � � ` .�•��. I ��v,. r,,_� r�., ��.� �r y�.r, � .� �n r- ��.:l�'R �,�. , �i t� � , '' r � � ,g xr !.$•� .'-, �.. t r� �� t � � ti��,y�t�� t � Yd r�.l� � w't`� ._ .�` �'�. � r r`�:.'�. � .,�j}{. �"'�;r(} �` �; � � �j�,tr`'� �� ''.. 4� � � �` F ? �a+c� � l* • '�� ✓ �� 1� �1�$, �ly� � .. �� t G� �r ,� .+4 ��f�,�i. d, � �.+i" I .+l�C�t ., .�^" � ' + �{`,�� ,` fi(1 'l I y`'�,� �� .�, �'y��,�jy�, ��.L�":� l t�'�1 �� t. _'��ti� t ��R ��1 �. :�.R�� -�� ( 4'�..T��Y',� `�.�� ., � �i R` � , � ��` \`'. � w��«. � �ay, ��-r �+( _, ta ;. t .� �. L iR .l t�r�b, :,�'l.S.�w' .�T v, ' - �'' � j ��# �' ;iy,',,i.�1iMt t�,s �,. � i - �':` 1!�e1� '.t 1�� ,� L.. ��g t,� �� t ,�`0 �`d �l�,��'�4��. yyp�� .`ti� 1 ' �?77 � � '15•�' � . ` �,;�i��<, vi k r a �[ '4 4 ,T r .'�{�t��. �iti 7 i ti}�.e � �J � i� t R ��.�Y , t! � ♦� � �� f', ��( �� .�,r�l-i3 �� C � �'.�, ��t. v.a 4.+ 1 - ,�� `f�� y�; ,� + � ., d ��,' +'b�S 4�� , ♦i+ :. � � �, h 4i'..��!a.,. . , � / '�5 >,ja ,�� , �,�.� ,.. 5 xat; \} � ,��',z.� �" ,�`F ty jr, /h' 4'• �}��' �',�'_ . 1 � �,� �' A`" 5 �•�y. �•,� ` ��+ -. M � f4,, 1, �.^0. � -! � �.+�,. 1 1 l f �� 1 l�i 1' �; b_ �'�,; ..1' <.. Figure 2: The following photo is an example of the appearance of corrugated steel pipe. A similar style of pipe will be used for the culvert, which will be 12 inches in diameter (much smaller than those shown below). � ��,,�°'"� _.. ,,� %�i � , I'� �'f i.. 1, �� . .F:� __ \ �' P � _ ��r. � \. �, L' � v.�2�;�:'�,t'\� �f.J � �.�t��:.'1G� •.�ia`V�-fi`J��. ° ��c�'1 VI'F.U� , t0' ��' C�Y�C:j�}.�J 'L�3a�� i � i _'l��-Tt,� (SGI�� aJ+�� typ ?U '�u� � �c�n:_a.P �Q a�l �L�`'�� `P�1vi onc�. Wal�� Sra�i, � � -5 ee � • �� G(aS5 SfG�Un -� ViQ¢J tlr C'Gaa� ��:��P . � �� y) � SteGl+ t ran �" ; C�.r�� fJ�e Wi�r� ��,.��{ wl�eel t- l�c,k ' /��'`P°S�ed aho�P �o�cre�e i _ _ _ �p p ro x. (�") �, � __ . - , �� _ _ � n �'� .' - � � -�, , ��, � . f� - _. t- _ � i � ; :. � __ , , �_ ; � (, , � , ,. , - i i i �,.-. — � i -L �--�- --;—,- EA��I� _ __.. _ _- r_._I—___i � ' I ' � _ � , �� / ; , � I ` � i __i-�—�__._ �._ �.��_� �� :� i �/�{l�Ik ; � . ' C � , i � � � _�;' i , ._ ;..� � _ � I '. , —' i ' ' € u�R L k I I�(� � � ' i i i � � � � �R T� �,f,,,' --- ' ' '-}-- -- _.�_ � %� ! � ' , i , � � � , � � I ' '`� , , � � ------ - - .-!—'--�---:�..._,__;_--_------ ; , I` I ; , E�� ,r I �� —_ __ �'�\a � _�__.0 i _ ' � . J ��, ��, oC�� '; I � �._ _�=. �' ' $� �� ; �L1 ' � i , __ _._ __ � _ ---a. , ' ' G,� , � � ;_._ �:� � 5 �� „ ' � . � ' . � . , : �. - — �—j --r�—� i j i.l"'---� � slope�� _ ; � �"S— Walk-�n , pU�tn W�ll b�P : � � -,---� — aPpf�x�S" �}��h�i i�+ � � � I �e��e+� � � EM��,�. � � �,r --- ,. � - ;-- ,,,j" ,�-� M , __1 , , � ; € ��2T� �,� — _ --;—= � ' ' ' -�—_ ,' � � i , ; ' � �� i j � ;� t �------- -+--- i �- --�-i -! !-�--�. � � �,,�,° �` ' ' -�—� -a--�- - - ° '�. � ; I-r-_- , �_� � � ; � .� 1 ' � �, '� �: i ' . i � : I � . I_' I , � .. . ,_. ' :._.r �._�_ _.. � � . i � ' I_. .._ _ ; _ `,� � � � � � �_ 1 , � � � I, ;-,-- I —, � ;- - - -:- - u� 1 1 i� i i ' I �` n �1 � �`� S <�> N !� CofJCi"CE 1� t�-t1t•-�) . .� " ��. 'V t' '�i ,. � E l� � -�cu �2 �aPB�'X � � ��h'V1�fQ 1� Ca'C_�P '�f 1 � 3 __ � �.4 x 'f'j � ---I io a.1lo;_�} •,Frra.tii �. pr�r�� i�� R�o� e .� tr; 5 � �µE�. S�(' �'}C �tU�l J�'Ci E� �Ct Fi�d�i�`'�"w,-cvllta` '�^��'�-�—�'�---�'- ��f�c (�`{�. J�'e (7�(1P�S�1,: l�F`/f �:_ 11 i'I�?J�;''C,� C,�1`U�a�t(� ' C�U�J -SeC,�� UV�2V,} c.1r �: � �Y1 C� (L�3�� ca�t �pPP`9X� ��c.h= 1 (a ok � � __.t � � � � ' � wA+-K�N� Pk-�H �--".�- �� y{� /` -- _ ,�\ � ��N�,�f-- �N 5�� --- - -------------._..------____._.._--_ I � •.• �-------� �pfi.�SN CoNC�Ie-�b (G�� „ ;. . _� __ _ : ---�- -- �-- _ , . __ __ __, 1 : i f ., ; � a , -�— �;— — � :�T��-�'�C. --- - q �_ � ' i : ' �py� g• � , , ,' � t � � �(z��`� _ ;_ __._..t--------� � I lu I � 1 ___. � i -- � � i -T-_ � � � � ; , � , � ! i —-�. -- -_ _ � � � p � � .,:: . - . _ _. � _.-- _--- x sr�.E �,, - � � �_ � r tG� , .. (c.00�LES � �i,�� se;�-i�u�r�= IE--- --.�_____ . � __. _. .___.....__...a :�f+ �-l�£C �."-�.r t., z �nv F�rcr1�M_�� Example of grating that will be used for the top of the diversion structure. The steel grating planned for the diversion structure will have 1 inch by 3 inch openings and will generally look like that pictured below. � � � � � �'. . � "�.. , , -, ,� . P / Image of the Waterman CL-10 Canal Gate that is proposed for the Stephens Park diversion structure. Almost this entire device will be out of sight below the ground surface. Approximately 1 inch of the steel frame at the top and then the small wheel will be exposed above the surface of the concrete. In addition, a lock will be placed on the wheel to prevent unauthorized opening of the canal gate. ��.� `Y,. 1 .,/ � v I � � � !I � � � ! Example of a trash gate that will be used to prevent trash, people, and other objects from entering the diversion structure's east end. The gate pictured below is much larger than the one that will be needed for the 14 inch by 3 foot gate needed for the diversion structure. �� ,�`-.. � �+�:.� � . ,�. a�,. � - _ -�.. �+ �,,y;�� ., � �.�_. � • �� , " .Y t . �.+��. . V "� R �. . , . l.. _ . . -.�- . ""' ' -��wel�- `,. t �,.::. �+�w�� .,.,; �:� ` ,�,� r*` ,�a�.��1�� :. ;�,�Y �°1�IA��i' � ` ,r '�,,,.. :�. �,` �F. _ _ °�•,.• i� .� `�_ k i DESIGN MEMORANDUM Client:� �c c.ci WufC� d .Scin�fU�iU� �,"C�/�'C,'� Sheet�_ Of�_ �� Project: e ro e�r .r ,';�/�'�� =ru�=i� Date: 12- 3 ��_ Data For: Work Order: Prepared By: SrS Checked By: File No: Note:This form must be used for project calculations and original fited in project files __ , _ � , _ _ _ _ _. _ C onc� �c Vc��l t _�s p_ -- ' e 5� _ _ � � --- - - ; _ ___ __ _ __ _. ---�----. �.«ch=_.S.ft� - ___ _ _ . i_� . - , ,. ; N - , " �,rn Pn�s;ons_ �.5� � y _W �C 3$ d � ; ' __�_Oc.rts,�e ��0( ��:>>�i��;�rs� _ ------- , I �� - ` ��a y Ja ..�Yt_C Cl1l�Cf LAG � — _._ . '_'_' ___ _—_ � �� "'T� � ' ' ` __. r _. � . ; , ____ 1_ � '��n At �`.'urS� � �c _�tJ t'is.E't�e.✓ .�,_�t�t� ! . � _ _.._ I � i ,., 3 r ,�-p � , -- i __.. ��.��G�� r , I t._ _ ��i�i�� ls�55 ��'Pr.•,rf:�'?�,._�E%+�'-�-.-. --- - -*— �.... .l_._ ____ _�_- '- �-� � -- - -'- `. y �. . � � . . . . . � � ..... -- - - .._._ . . --- / � ,�f:':-(��t,A�ra��j� 1.� ��,rccs _ ._ ;_.__. ; ; ; j , � ' I , __ ,. . � -i n� � � � � _ f.Otic. �7,ecc _G�;±t.._fi�t.�__CG7u��i � . . � _.-- -__ . __ !--__ — - ... - -_ -- : .. � , , .. : U�,�t�y�X ` � --- - . � � � , __ .�._ ___.�_�.__.___. . _.Co�3.c��e_ __ _ ___ � , , , .�.. ,,. . _.:__ r_ .___ „. . .._ --- , , ; ; ; ; , I ` ; , � �� , , ; 1.� �r ,_ _, — _ .__ ___ ,._ _ ___. .. - -- —___--� r , , . .:\ ; �i; � . ; { _. . .._.__. ....�.;.. _ ,�.�..... �._.... ._.._. __� � . � _.._ -- — -_ .,_ _'-"-- , � � i _. � ._ —_,- . ,.."_ . '--�-. ... .. ...�. � ._s._. . : � ' � � � � � � � _ ,...__ . _._. '.__.. 4 __�- ._r_. 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' . ame UPDATED DESIGN PLANS (For Reference Only) AMEC Earth&Environmental DESIGN MEMORANDUM �, Client: ,�L�e �i'�e/ �i(/�s�c/d a�'�ii�=`Jn ,'tf.I�C't Sheet�_ Of �- ame �.a Pr•oject: ��/�Otc'.a� �t.r(' �ei,$;vr� Date: / �� I � Data For: Work Order: Prepared By: Checked By: File No: Note:This form must be used for project calculations and ariginal filed in project files _ __ ---._ _ . _ _ __ __ _ _ _ _ _ _._ _ � � ___ ..,.__ ----- � , ; ; L � � �+ -- — -�- --- '. _ ,o L _ _ _ - __ �� _ _ : Q� -- _- - � �� ; S ` ; � _ , .-_ � J av'` ` � '�. _ _. v �_ ' __ _RS � - - - -- _ __ _ _ , � �' � � � _ , '; �_ . _._ a ' � ; _.. - ; 3 �_ __ , _ _ _-- --- - � : � , � � i , _ . . . _ ___ _ �- � -- s _ , __.� !1? `~ - � � t �.�_ �� _ _.�. _....._�'.`6 �1 �i- 1 - _ -- -�__.� ---- --- � _- --- -- -_ -_ , ; � r v ' f .� l�- � ! ; - ' ' �+' ' ; , . ._, .--- r _. �� , a _ ----- -- _ _ �--..____ ____ r :.. � _ - - . , _ _ ___ _ � : � _ _ ~ � -- , _ . 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