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HomeMy WebLinkAboutDrainage Reports - 03/01/2003V FT1iPI4ayASS0CIATE3 INC L� Landscape Architecture Urban Design Planning February 18, 2003 i Ted Shepard Fort Collins Current Planning Departrrient FI 281 North College Avenue Fort Collins,. CO 80524 RE: Proposed Water Meter Facility City of Fort Collins Utility Service Center 40ort Minor Amendment BII ' Dear Ted The proposed Meter Shop Facility.is one of the department buildings within.the City of Fort Collins Utility Service Center which is located at the northeast intersection of Wood Street and Elm Street. The entire Utility Service Center is covered by two zones - E, Employment_and L-M-N, Low Density Mixed -Use Neighborhood. The Meter Shop is located in the E, Employment zone. An Amended Overall Development Plan (ODP) for the entire Utility Service Center site was approved by the Planning Director on December 23,2002. A copy of the recorded Overall Development Plan is attached. This submittal is for a Minor Amendment for a new 8,900 square foot new Meter Shop facility which replaces the existing,, The primary functions of the building are administrative, management and field related activities which provide new meter installation and the testing and repair of new and used meters. Parking is currently located on the nortl, east and west sides of the existing building. The remaining Utility Service`,Center yard area to the east of the new water meter building has been reconfigured to accommodate employee parking. The proposed building is oriented so that the entry faces east into the site. The maximum building height is 23 feet. The primary building materials and colors will match the rest of the Utility Service Center, utilizing face brick, and integrally colored split face and ground face CMIJ: A canopy on the north east side of the building, covers three parking spaces and dock area. Dumpsters are provided in the overall Utility Service Center for disposal of trash for all department buildings including the Meter Shop. Phone 970.224.5828 Fax 970.224.1662 401 West Mountain Ave. Suite 201� Fort Collins, CO 80521-2604 vlripley.corn The grading around the majority of the building perimeter consists of a berm with a 4:1 slope, which is consistent with other existing buildings in the Utility Service Center. Please see the civil engineer's drainage report and drawings for further information. ; Pedestrian access includes a proposed; sidewalk, with a handicapped accessible ramp, on the east side of the building. knew striped crosswalk, to the south, provides access to other department buildings. Pedestrian sidewalks along Wood Street and to other areas of the overall Utility Service Center remain unchanged. A 370 square foot bike shelter, located `south of the main Utility Service Center Entrance, serves the entire site, including the Meter Shop. An existing six foot high chain link fence with 3 strand barbed wire at the top will be replaced with the same fence type which is consistent with the existing fencing for the overall Utility Service Center. The new fence will be relocated so it is closer to the property line which will allow additional space to accommodate the proposed grading, drainage and landscape. Please see attached photo of the existing fence and the Site Plan for the "existing and new fence locations. Light poles are located in the parking lot: (see Site Plan for light pole locations). Night lights are also located under the.canopy. The design objectives of the landscape plan are to utilize plant species which relate to the existing plantings used throughout the Utility Service Center. Plant species are typically low water varieties. Deciduous and ornamental trees located north and west of the new building comply with the full trees stocking requirements under Section 3.2.1(A)(c) -of the Land Use Code. Four existing street trees are located in the parkwayon Wood Street (see Landscape Plan). r No traffic study is required for the project. Thank you for your consideration and we look forward to working with you during the development review process. Sincerely, VF Ripley Associates Louise Herbert SEAR• BROWN February 18, 2003 Mr. Basil Hamdan City of Ft. Collins Stormwater Utility Department 700 Wood Street Ft. Collins, Colorado 80521 Es Fort Collins,CO 80521 �2.69 3 9 48368 fax RE: Addendum, to Final Drainage & Erosion Control Report for the City of Ft. Collins Service Center Warehouse Storage Area, Ft. Collins, Colorado Dear Basil: We are pleased to submit for your review and approval this letter addendum. This addendum, regards the design and construction of a new meter shop,building at the City of Fort Collins Utility Service Center campus as an element of a Minor Amendment submittal - to the City. All computations within the original report have been completed in accordance with the City of Ft. Collins Storm Drainage Design Criteria Manual. There is no material change in the hydrologic or hydraulic design for the currently proposed improvements, and this addendum describes these improvements in more detail. , We appreciate your time and consideration in reviewing this submittal. Feel free to call if you have questions regarding the findings of this addendum or the original study. Respectfully, The Sear -Brown Group Prepared by: Michael T. Carr, P.E. Project Manager ADDENDUM TO THE FINAL DRAINAGE AND EROSION CONTROL REPORT City of Fort Collins, Service Center Warehouse Storage Area Improvements, Fort Collins, Colorado February, 2003 I. INTRODUCTION This letter report is an Addendum to the Final Drainage Report for City of Fort Collins, Service Center Warehouse Storage Area Improvements dated August, 2002 by Sear -Brown (SB). This addendum is intended to address,changes to the proposed drainage improvements represented in the approved construction plans for the City of Fort Collins, Service Center Warehouse Storage Area Improvements as represented in the construction plans for Fort Collins Utilities Facility Meter Shop Improvements. The project is located in the City of Fort Collins Service Center P.U.D., north of Elm Street, east of Wood Street in Ft. Collins, and west of Lee Martinez Park. The current project area is located in the northwestern,corner of the Utilities Service - . . Center campus. The site location can also be described as situated in the Northwest 1/4 of Section 11 and -the Southwest %4 of Section 2, Township 7 North, Range 69 West of the 6th P.M., City of Fort Collins, Larimer County, Colorado. The project site is shown on the attached vicinity map. II. . GENERAL PROJECT DESCRIPTION The current project consists of the removal of the existing meter shop buildings to the north of existing building B, the construction of a new meter shop building near the west property line and south of the north entrance off of Wood Street, and construction of asphalt parking areas where the meter shop buildings currently stand. The area where the proposed new building will be located is currently a paved parking area. A copy of the original Storm Drainage Plan showing the current study area is'included for reference. The area comprised of demolition and removals and proposed building area is currently completely impervious, covered by existing buildings or paved parking/storage areas. The proposed improvements will create a small addition of permeable ground surface, approximately 0.13 acres or about 2% of the sub -basin 17.1 in which this area lies, thereby slightly reducing the amount of runoff. No significant changes to site topography or drainage patterns are proposed with this project. _ Page 1 of 3 All previously approved and constructed improvements on this site have been in conformance with applicable regulations, hydrologic and hydraulic criteria, and appear to be in good condition, functioning as intended. III. DRAINAGE FACILITY DESIGN ASSOCIATED WITH METER SHOP IMPROVEMENTS The majority of runoff from this site of proposed improvements currently flows overland in a northeasterly direction where it is intercepted at.a curb inlet and conveyed in the storm drainage system to the east and north and subsequently discharged to the Poudre River. This drainage regime will not be substantially changed with the proposed improvements. The area where existing buildings are located will be graded to match the paved parking areas to the north and east, and runoff will flow to the northeast to the existing curb inlet. An exhibit drawing, showing existing features and storm drainage piping and proposed improvements, is included with this Addendum for reference. A 15-inch HDPE storm drain pipe currently conveys runoff from the southwestern portion of sub -basin 17.1 through the proposed new building. This piping will be reconfigured to circumvent the proposed building. This reconfiguration does not materially affect the function of the existing storm drainage system. A drawing, showing proposed storm drain plan and profile, is included with this Addendum for reference. I IV. EROSION CONTROL The great majority of the area of proposed improvements will be covered by either the building or pavement, with the small remainder, approximately 0.13 acres, landscaped primarily with landscaping rock and shrubbery. Following construction, there will be no more potential for erosion than that which currently exists, which is virtually nil. During construction, erosion controls measures including vehicle tracking control pads, inlet filters and silt fencing will be utilized to minimize erosion. Soils exposed during construction will be watered as necessary to prevent migration due to wind. All construction activities must comply with the State of Colorado permitting process for Stormwater Discharge Associated with Construction Activity. If any dewatering is required during construction, a construction dewatering permit issued by the Colorado Department of Public Health and Environment will be required. Page 2 of 3 V. CONCLUSION The design presented in this report and shown on the Drainage and Erosion Control Plan are in compliance with the City of Fort Collins drainage criteria and is adequate to address the stormwater management needs of the project area. VI. REFERENCES 1. Final Drainage & Erosion Control Report City of Fort Collins, Service Center Warehouse Storage Area Improvements, Ft. Collins, Colorado, August 2002 1. Update to: Final Drainage & Erosion Control Study ,'Ft. Collins Utility Center, PUD, 5t' Filing, Ft. Collins, Colorado, Sept. 1997 (Rev. Jan. 2000). 2. Final Drainage & Erosion Control Study, Ft. Collins Utility Center, PUD, 5"' Filing, Ft. Collins, Colorado, September 1997. 3. Flood Insurance Rate Map Panel No. 080102-0001, FEMA, February 1984. 4. Flood Insurance Study, City of Ft. Collins, Larimer County, FEMA, February 1984. 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FIRITERMORE, THE RENEW DOES PROJECT No. NOT INKY TNT WN%TBIES OF ITEMS ON THE PUNS 183053 ARE THE FIN& OUNNTOTES REWIRED. THE RENEW SWLL NOT BE WNSTRUED N ANY RECON AS oxAmc HJ. ACCEPTANCE OF NWNCNL RESPCHSIBIIJIT BY THE CS425 4970 LDNL ENTITY FOR ADDTp OWNTTO OF ITEMS SHOWN THAT MOT BE REWIRED DUMB THE SHEET 7 OF iD CDNSTRIX70N m\sE.