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Home My WebLink AboutDrainage Reports - 08/19/2020City of Fort Collins Approved Plans Approved by: Date: Wes Lamarque 8/19/2020 Trail Head Park Final Drainage Report Page 1 of 7 TABLE OF CONTENTS GENERAL LOCATION AND EXISTING SITE INFORMATION ......................................................... 3 DRAINAGE BASINS AND HISTORIC RUNOFF .......................................................................... 4 HISTORIC DRAINAGE ..................................................................................................... 4 PROPOSED DRAINAGE .................................................................................................. 4 DRAINAGE DESIGN CRITERIA ............................................................................................ 5 HYDROLOGIC METHOD AND DESIGN STORM FREQUENCIES ................................................. 5 HYDRAULIC CRITERIA .................................................................................................... 5 VARIANCES FROM THE CRITERIA......................................................................................... 6 DRAINAGE FACILITY DESIGN ............................................................................................. 6 GENERAL CONCEPT ..................................................................................................... 6 STORMWATER POLLUTION PREVENTION/EROSION CONTROL .................................................. 6 TEMPORARY EROSION CONTROL .................................................................................... 6 PERMANENT EROSION CONTROL .................................................................................... 6 CONCLUSIONS................................................................................................................ 7 REFERENCES ................................................................................................................... 7 Appendix A Referenced Information 1. Vicinity Map 2. Drainage and Erosion Control Report for the Trail Head Property 3. Geotechnical Report Soil Boring Log Summary 4. FEMA FIRM Map 5. NRCS Websoil Survey 6. Figure 1: Drainage Plan Existing 7. Figure 2: Drainage Plan Proposed Appendix B Hydrologic/Hydraulic Computations 1. Rational Method Calculations 2. Grass Buffer Calculations Trail Head Park Final Drainage Report Page 2 of 7 ENGINEER S STATEMENT: I hereby certify that this report (plan) for the Final Drainage Design for the Trail Head Park was prepared by me (or under my direct supervision) in accordance with the provisions of the City of Fort Collins Standards for the Responsible Parties thereof. I understand that the City of Fort Collins does not and shall not assume liability for drainage ______________________________ Kevin A. Tone, P.E. Registered Professional Engineer State of Colorado No. 28699 Trail Head Park Final Drainage Report Page 3 of 7 GENERAL LOCATION AND EXISTING SITE INFORMATION The Trail Head Park (site) is located in Section 4, Township 7 North, Range 68 West of the 6th Principal Meridian, in Larimer County, Fort Collins, Colorado. Refer to Appendix A for the site vicinity map. The site is bordered to the north by Yule Trail Drive and Roaring Creek Drive, to the west by Wagon Trail Road, and to the east by Greenfields Drive. Developed residential areas are to the north, south, east and west of the site. The existing site, platted as Tract H and Lot 1- Block 9 (same owner: City of Fort Collins) of the Trail Head Development, is predominantly park turf lawn and vegetation. This site was part of the master drainage plan for the Trail Head Property and is included in the study performed by JR Engineering in 2004. The design requirements and constraints are outlined in the Drainage and Erosion Control Report dated October 13, 2004 and included in Appendix A. The site is approximately 6.26 acres of undeveloped property and has an existing percent impervious of 12.1%. The existing ground surface is relatively flat, generally sloping to the west at grades ranging from 0.1% to 3.0%, with an area of steep slope down to the group of trees at the southeast of the site. From the geotechnical report dated December 30, 2019 the soil is mainly sandy clay. Groundwater was encountered at 28 ft to 30 ft below the ground surface. The Summary Logs of Exploratory Borings from the geotechnical report is attached in Appendix A. The site is located outside FEMA and City of Fort Collins mapped 100-year and 500-year floodplains, per FEMA Flood Risk Map Number 08069C0982F, effective date 12/19/2006. The site is comprised of hydrologic soil group C/D per NRCS soil survey. The FEMA Firm Map and NRCS Websoil Survey are included in Appendix A. In general, the proposed redevelopment of the site consists of constructing four new structures, reconfiguring the striping on Roaring Creek Drive to accommodate parallel parking, connecting proposed pedestrian pathways to existing perimeter pedestrian pathways in multiple locations, constructing a new basketball court, constructing new playground equipment and garden areas, and a bioretention/grass buffer. Grass buffers will be located on the north and west sides of the site and will tie into the proposed and existing storm system along Wagon Trail Road. The site development will increase the overall percent impervious by 12% to a total of 24.8%. However, from the existing drainage report, the site consists of portions of existing sub basins 344.1, 344.2, 345, 352.1 and 352.2. From the existing drainage report, Lot 1-Block 9 was planned to be a day care building with parking lot (commercial), while Tract H was planned to be the park. The average proposed imperviousness for the sub basins was calculated to be 33.2%. While the site generally conforms to the existing drainage report, the majority of stormwater runoff is conveyed via surface flow either to the west into an existing quadruple curb inlet in Wagon Trail Road or to the north into Greenfields Drive or Yule Trail Drive and conveyed to an existing curb inlet at Yule Trail Drive and Roaring Creek Drive, with bypass flows continuing down Roaring Creek Drive to the quadruple curb inlet in Wagon Trail Road. The inlets are conveyed to the public storm drain system to the west and eventually to the existing Pond A per the existing drainage report. Trail Head Park Final Drainage Report Page 4 of 7 DRAINAGE BASINS AND HISTORIC RUNOFF HISTORIC DRAINAGE The existing site consists of four historical onsite basins H1, H2, H3, and H4. Each of the onsite basins consists of existing undeveloped landscaped area. In addition, there are five historical offsite basins OS1, OS2, OS3, OS4 and OS5. See Figure 1 Drainage Plan Existing in Appendix A. Runoff from Basin H1 drains offsite to the north and east and is collected by the existing inlet on Roaring Creek Drive. Runoff from Basin H2 travels to the west and is collected by the existing inlet on Wagon Trail Road. Runoff from Basins H3 and H4 drains to the west and is captured in the inlet in Wagon Trail Road. Offsite Basin OS1 primarily consists of half of the adjacent roads Greenfields Drive and Yule Trail Drive. Runoff from Basin OS1 flows west towards the inlet in Roaring Creek Drive. Offsite Basin OS2 primarily consists of half of the adjacent road Roaring Creek Drive. Runoff from Basin OS2 flows south and west towards the inlet in Roaring Creek Drive. Offsite Basins OS3 and OS4 primarily consist of half of the adjacent road Wagon Trail Road. Runoff from Basins OS3 and OS4 flows towards the inlet in Wagon Trail Road. Offsite Basin OS5 consists of undeveloped landscape area. Runoff from Basin OS5 flows north and west onto the site and continues to flow to the inlet on Wagon Trail Road. There is no existing onsite detention for the site. Stormwater is conveyed via an existing storm sewer system to existing detention Pond A located southwest of the site. Per the Drainage and Erosion Control Report prepared by JR Engineering, the existing Pond A discharges south, under E Vine Drive into an existing swale on the Witham property. Stormwater flows south towards the Boxelder Creek and ultimately to the Cache La Poudre River. PROPOSED DRAINAGE Proposed drainage patterns are to remain generally the same as the current, but will utilize landscaped areas, inlets, and grass buffers to capture the majority of runoff before discharging into the public storm system. The grass buffer areas will be utilized for water quality and low impact development (LID) treatment. Formal and non-formal grass buffer areas are proposed around the site. The non-formal vegetated buffers provide water quality and LID treatment through disconnected impervious areas and sheet flow of runoff from impervious areas. Since the soils onsite are primarily type C soil, these areas cannot technically be considered formal grass buffers and do not count towards the total LID treatment area. The total non-formal vegetated buffers provide significant treatment of the site with an area of approximately 16,775 square feet. The formal grass buffer areas total approximately 15,000 square feet and will have amended soil per City of Fort Collins Stormwater Criteria Manual to adequately treat stormwater runoff. The site 50% of the sites modified or added impervious area. Detention will not be required as we are meeting the planned design Trail Head . The proposed site consists of eight onsite basins A, B, C, D, E, F, G and H. In addition, there are 11 offsite basins OSA1, OSA2, OSB1, OSC1, OSD1, OSE1, OS1, OS2, OS3, OS4, and OS5. Basin A consists of concrete walks and a formal grass buffer area. Runoff from Basin A drains southwest through a proposed formal grass buffer and is captured in the proposed storm system. Basins B and D consist of concrete and gravel walks as well as landscape areas. Basins C and E consist of concrete and gravel walks, a portion of roof area and landscape areas. Basins F and G Trail Head Park Final Drainage Report Page 5 of 7 consist of concrete and gravel walks, a portion of roof area, a portion of playground area and landscape areas. Runoff from Basins B, C, and E drains primarily to the west and flows through the non-formal grass buffer area prior to entering the proposed storm system. Runoff from Basin D drains north through a proposed formal grass buffer and is captured in the proposed storm system. Runoff from Basins F and G drains primarily to the southwest and flows through the non- formal grass buffer area. Basin H consists of concrete walks, a portion of the playground and the restrooms. Runoff from basin H drains primarily to the north through a formal grass buffer and into an area drain. Offsite Basins OSA1 and OSA2 consist of onsite areas with concrete walks that drain offsite towards the adjacent roads Greenfield Drive, Yule Trail Drive and Roaring Creek Drive. Offsite Basins OSB1, OSC1, and OSD1 consist of offsite areas that drain onsite and combine with runoff from basins B, C and D respectively. Offsite Basin OSE1 consists of onsite area with concrete walks, gravel walks, a portion of the basketball court and proposed formal grass buffers. Runoff from Basin OSE1 flows through the proposed formal grass buffer area and continues west offsite to the inlet in Wagon Trail Road. Runoff from Basin OS1 flows west towards the inlet in Roaring Creek Drive. Offsite Basin OS2 primarily consists of half of the adjacent road Roaring Creek Drive. Runoff from Basin OS2 flows south and west towards the inlet in Wagon Trail Road. Offsite Basins OS3 and OS4 primarily consist of half of the adjacent road Wagon Trail Road. Runoff from Basins OS3 and OS4 flows towards the inlet in Wagon Trail Road. Offsite Basin OS5 consists of undeveloped landscape area. Runoff from Basin OS5 flows north and west onto the site and continues to flow to the inlet on Wagon Trail Road. See Figure 2 Drainage Plan Proposed in Appendix A. DRAINAGE DESIGN CRITERIA HYDROLOGIC METHOD AND DESIGN STORM FREQUENCIES The drainage for the site was designed to meet or exceed the City Standards and Specifications, including the Stormwater Criterial Manual which incorporates most of the Mile Urban Storm Drainage Criteria Manual (USDCM). The design one hour point rainfall used for the 2 year and 100 year storm events are 0.82 inches and 2.86 inches respectively. The Rational Method (Q=CIA) was used to determine the storm runoff (Q) from the areas contributing to the new storm system, with composite runoff coefficients (C) and contributing areas (A) given for design points in sub-basins. The runoff coefficients for various land usages were obtained from Table 6-5, USDCM, Vol. 1. Intensities (I) were determined using the Time- Intensity-Frequency equations, and a calculated Time of Concentration (t c). Hydraulic Criteria. See Appendix B for the runoff coefficient calculations. HYDRAULIC CRITERIA The proposed drainage facility has been designed to comply with the City of Fort Collins Stormwater Criteria Manual. The MHFD UD-BMP spreadsheet version 3.07 was used to analyze the designed grass buffers. calculations are included with the rational calculations in Appendix B. Complete drainage plans, Trail Head Park Final Drainage Report Page 6 of 7 details, dimensions, etc. are included in the grading and drainage plans in the construction documents. VARIANCES FROM THE CRITERIA No variances are requested for this design. DRAINAGE FACILITY DESIGN GENERAL CONCEPT The private storm drainage system has been designed to convey the 100-year storm event through a combination of inlets and pipes that connect into the existing sump inlet in Wagon Trail Road. The site was graded to capture runoff into the storm system and direct it to the existing inlet located on the west edge of the site. The site was graded to minimize the amount of flow being directed to the adjacent roads. The proposed formal and non-formal grass buffers located on the private storm system will treat storm runoff for a minimum of 50% of the modified or added impervious area on the site for water quality prior to discharge into the public storm system, satisfying the City of Fort Collins LID requirements. These features will facilitate sedimentation and filtration while limiting erosion, providing both treatment and slowed release of the water quality capture volume. The proposed redevelopment of this site will serve to limit water quality and quantity impacts to natural drainageways by decreasing the frequency, rate, duration, and volume of runoff. The site has been designed to minimize directly connected impervious areas by grading the site such that stormwater runoff sheet flows from paved areas through landscaped areas to formal and non-formal grass buffers to be treated prior to entering the proposed and existing storm systems. STORMWATER POLLUTION PREVENTION/EROSION CONTROL During construction, temporary erosion and sediment control practices will be used to limit soil erosion and sediment discharge off the site. TEMPORARY EROSION CONTROL A temporary erosion control plan is to be implemented for the site during construction. Temporary erosion control measures include, but are not limited to, slope and swale protection provided using erosion control wattles/sediment control logs, rock socks, etc. All temporary erosion control measures are to be removed after they are deemed unnecessary. A general erosion control plan has been provided in the civil construction documents and attached. PERMANENT EROSION CONTROL Manual Volume 3 (USDCM) provides guidelines for the selection of appropriate permanent structural BMPs for a site that is to be developed or redeveloped. The Trail Head Park is best project site. The BMP decision tree for such sites is provided in Figure 2-2 of the USDCM. As Trail Head Park Final Drainage Report Page 7 of 7 previously stated, the site and surrounding vicinity is comprised of hydrologic soil group Type C/D soils, per the NRCS soil survey. The water quality capture volume (WQCV) for this site is accounted for in the regional detention pond. No detention is required on the site. Runoff will be collected in the private storm system before connecting to the public storm system. CONCLUSIONS This Final Drainage Report for the Trail Head Park has been prepared to comply with the stormwater criteria set by the USDFCD and the City of Fort Collins. The proposed drainage system presented in this report is designed to convey the 100-year peak stormwater runoff through the site via the proposed and existing storm system. Through calculations, modeling, and review of the proposed storm drain system, there appears to be adequate capacity to convey the proposed flows. It can therefore be concluded that development of the Trail Head Park complies with all of the stormwater jurisdictional criteria and will not adversely affect the existing streets, storm drain system and/or detention/water quality facilities. REFERENCES 1. City of Fort Collins Stormwater Criteria Manual, City of Fort Collins, December 2018. 2. JR Engineering, Dated October 13, 2004. 3. Geotechnical Investigation Proposed Neighborhood Park Trail Head Subdivision Fort Collins, Colorado CTL Thompson Incorporated, Dated August 30, 2019. 4. Mile High Flood District, August 2018 version. APPENDIX A REFERENCED INFORMATION Trail Head Park 3403 Yule Trail Dr Fort Collins, CO MAP NOT TO SCALE (Image from Google Earth) This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA This unofficial copy was downloaded on Jan-08-2020 from the City of Fort Collins Public Records Website: http://citydocs.fcgov.com For additional information or an official copy, please contact City of Fort Collins Utilities 700 Wood Street Fort Collins, CO 80524 USA 105°1'8.92"W 105°0'31.46"W APPENDIX B HYDROLOGIC/HYDRAULIC COMPUTATIONS