No preview available
HomeMy WebLinkAboutDrainage Reports - 12/14/2015City of Ft. Approved DRAINAGE AND EROSION CONTROL REPORT FOR THE SUMMIT ON COLLEGE PARKING GARAGE AT STUART STREET/CHOICE CENTER DRIVE FORT COLLINS, COLORADO FOR FORT COLLINS ASSOCIATES, L.P. 431 OFFICE PARK DRIVE BIRMINGHAM, ALABAMA 35223 MAY 4, 2015 ns ' TABLE OF CONTENTS ' SECTION 1 — ENGINEERS CERTIFICATION BLOCK........................................................................3 SECTION 2—SITE LOCATION AND PROJECT DESCRIPTION............................................................4 ' BENCHMARK INFORMATION..................................................................................................5 SECTION 3—STORM DRAINAGE CRITERIA..................................................................................6 SECTION 4— DRAINAGE BASINS AND HISTORIC RUNOFF..............................................................7 ' HISTORIC BASINS.................................................................................................................7 PROPOSED DEVELOPED BASINS............................................................................................7 DETENTION/WATER QUALITY POND.......................................................................................8 ' SECTION 5—STORMWATER POLLUTION PREVENTION...................................................................9 TEMPORARY EROSION CONTROL..........................................................................................9 PERMANENT EROSION CONTROL........................................................................................... 9 ' STORMWATER MASNAGEMENT CONTROLS ......... :..................................................................... 9 SEQUENCE OF CONSTRUCTION ACTIVITIES..............................................................................9 SECTION 6—CONCLUSIONS................................................................................................... 14 ' SECTION 7—REFERENCES .......................................................................................................15 ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 1 of 15 APPENDIX ' Appendix A - Hydrologic Computations l . Site Vicinity Map 2. Soil Data - Natural Resources Conservation Services (NRCS) ' 3. City of Fort Collins 100 year Flood Map 4. FEMA Firmette - Panel 08069CO979H 5. Floodplain Exhibits, C301 and C301 A ' 6. Figure 1- Existing Drainage Map 7. Figure 2 - Developed Drainage Map 8. Rational Worksheet (Existing and Developed Flows) ' 9. Velocity Calculations for 30in RCP 10. Water Quality Pond Sizing Calculations ' Appendix B - Erosion Control Escrow/Security Calculations ' Appendix C - Referenced Information 1. Grading Plan, C201 2. Drainage & Erosion Control Plan, C202 ' 3. Storm Plan and Profile, C203 4. Grading and Drainage Details, C302 5. Landscape Plans (3 sheets) ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 2 of 15 SECTION 1 - ENGINEER'S CERTIFICATION BLOCK I hereby certify that this Final Drainage and Erosion Control Report for the Summit on College Parking Garage was prepared by me (or under my direct supervision) for the Owners thereof and meets or exceeds the criteria of the City of Fort Collins Stormwater Design Standards. Signature: Charles R. Hager, IV, PE Registered Professional Engineer State of Colorado No. 37146 The Summit on College Parking Garage Drainage & Erosion Control Report • •� R .•• •T /2, = 37146 U A c! W, Page 3 of 15 SECTION 2 - GENERAL LOCATION AND DESCRIPTION SITE LOCATION AND PROJECT DESCRIPTION ■ The Summit on College Parking Garage project site is located at the western termination of Stuart Street and Choice Center Drive in the City of Fort Collins, Colorado. Refer to Appendix A for the ' site vicinity map. The site is a portion of a property owned by Fort Collins Associates, L.P., recently developed as The Summit (previously known as Choice Center) student housing facility, and is currently occupied by a surface parking lot serving the Summit residents. In general, as part ' of this project, the proposed site improvements will consist of the construction of a multi -tiered parking garage built on a new slab -on -grade foundation in place of the existing surface lot. The existing parking lot footprint will be retained for the proposed garage and will not encroach on the ' existing Spring Creek habitat buffer to the south. The site and existing parking lot generally slopes from north to south toward the nearest receiving ' waters of Spring Creek, with slopes from 2% to 25%. The soils within the site consist almost exclusively of Altvan-Satanta loams having type B hydrologic soil group with a moderate inflation rate, which has been classified based on the Natural Resources Conservation Services (MRCS). See Appendix A for soil data. The existing percent vegetative density of the site that is not existing asphalt surface is approximately 25% which includes native grasses around the perimeter and riprap stone. The rainfall erodibility is K=0.32 for Type B soil and will cause rilling and gulling ' over longer distances and steeper slopes. Terracing and perimeter control will help minimize the extent of gulling. A portion of the property is located within the 100-year high risk floodplain for Spring Creek as shown on the City of Fort Collins Flood Map and the Federal Emergency Management Agency (FEMA) community panel # 08069C0979H, revised on May 2, 2012, attached in Appendix A. As part of the Choice Center project, a CLOMR was completed revising the floodplain and floodway ' boundaries of Spring Creek running to the south of the property as well as the historic drainageway located along the Burlington Northern Railroad to the west which discharges into it. The LOMR (City of Fort Collins Case No. 13-08-1143P) for that project was approved effective July 25, 2014 ' and the boundaries shown on the attached exhibits reflect that approval. The Base Flood Elevation for the proposed garage was interpolated from the current Spring Creek hydraulic model provided by the City of Fort Collins. See the floodplain exhibits provided in Appendix A. The garage itself ' will not be elevated to the Regulatory Flood Protection Elevation and is proposed to be vented to allow floodwaters to pass through the structure, per the requirements of the City Municipal Code, Section 10-39. The elevator located in the northeast corner of the garage will be elevated above ' the RFPE. A FEMA Elevation Certificate will be completed and approved before a Certificate of Occupancy is issued. The proposed project is in compliance with City floodwater protection criteria and no adverse impact to floodwater elevations will result from the work. ' The main purpose of this report is to summarize the changes in impervious area and the stormwater quality improvements associated with the site improvements for the proposed parking structure. ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 4 of 15 BENCHMARK INFORMATION Horizontal datum is Colorado State Plate Coordinates NAD 83(2007) Datum and vertical datum is referenced from Fort Collins Benchmark C-322, Record Elevation = 4,986.22, NGVD 1929; Elevation = 4,989.40 NAVD 1988. ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 5 of 15 SECTION 3 - STORM DRAINAGE CRITERIA This report was prepared to meet or exceed the City of Fort Collins stormwater criteria. The City of Fort Collin's Storm Drainage Design Criteria and Construction Manual (with all current 1997 Revisions and 2012 Amendments) (CoFC-SDDCCM) and the Urban Drainage Flood Control District's (UDFCD) Drainage Criteria Manual (USDCM) Volumes 1, 2 and 3 were referenced as guidelines for this design. HYDROLOGIC CRITERIA The Rational Method was performed to calculate the peak historic runoff rates for each basin. The City of Fort Collins runoff coefficients were used for the analysis. Weighted percent impervious was calculated for each basin using Table RO-3 in the Urban Storm Drainage Criteria Manual. The weighted runoff coefficients were calculated for each basin using Tables 3-2 and 3-3 in the City of Fort Collins — Storm Drainage Design Criteria and Construction Standards (CoFC— SDDCCS). The time of concentration was calculated using the equations given within section 2.4.1 of the USDCM equation RO-3. The intensity was calculated using the corresponding storm rainfall depth and USDCM Equation RA-3. To account for the City of Fort Collins' IDF Curve, Coefficient 3 of the UDFCD's intensity formula was adjusted to 0.7867. The City of Fort Collins area has 5-yr 1-hr rainfall depth of 1.14 inches, a 10-yr 1 hr rainfall depth of 1.40 inches and a 100-yr 1 hr rainfall depth of 2.86 inches. These depths do account for the 1997 adjusted rainfall depths. ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 6 of 15 SECTION 4 - DRAINAGE BASINS AND HISTORIC RUNOFF HISTORIC BASINS ■ Currently, the northeast portion of the existing parking lot, designated sub -basin H1, drains to a combination type-13 concrete inlet at the intersection of Choice Center Drive and Stuart Street, ' shown on the attached Figure 1 — Historic Drainage Map in Appendix A. This runoff is conveyed through an existing storm sewer system that eventually discharges into Spring Creek at a headwall in Creekside Park. The remainder of the site, sub -basins H2 & H3, sheet flow to the south across the lot, through a series of curb cuts and into a 20' infiltration area followed by a grass buffer at the edge of Spring Creek. The total runoff in Cubic Feet per Second (CFS) for each basin was calculated to determine an equivalent runoff for the entire site. Rational method calculations with peak flows for the individual sub -basins are attached in Appendix A. Additionally, there is an existing 30" reinforced concrete pipe storm drain line installed as part of the Choice Center improvements that conveys overflow from the off -site pond to the west of the Burlington Northern Railroad into the low flow section of Spring Creek to the south and east. The existing alignment of this system cuts diagonally across the southwest portion of the proposed garage and must be relocated outside the structure. Consideration was given to abandoning this system since very little runoff flows through it on a daily basis, but that option was rejected due to the system's critical role in preventing overtopping of the BNRR ROW by floodwaters during large storm events. No runoff from the proposed garage site enters this system. Due to grade constraints and the need to keep this line in service, the proposed realignment results in a slope of 0.0037 ft/ft for the two sections of pipe to be installed, for a total of 351 lineal feet. For a 30 inch reinforced concrete pipe flowing at only 3 inches depth of water, the flow velocity in the pipe is 2.04 feet per second, providing minimum cleansing velocity and eliminating the need for a variance request. See attached velocity calculations in Appendix A. PROPOSED DEVELOPED BASINS The proposed drainage patterns are to remain similar to current patterns. As before, three designated sub -basins will convey stormwater runoff to Spring Creek. Sub -basin Al consists of the north portion of the existing surface lot and will serve as the access approach to the entrance of the garage. The runoff from this area will continue to be collected at the existing combination type-13 inlet. The proposed layout will increase flows into this inlet by approximately 0.53 cfs for the 100-yr storm event. The existing inlet has capacity to handle this flow increase, refer to the Final Drainage and Erosion Control Report for Choice Center, prepared by Jim Sell Design, Inc., dated August 1, 2011. The Summit on College Parking Garage Drainage & Erosion Control Report Page 7 of 15 Sub -basins A2 and A3 represent the runoff collected from the open top tier of the proposed garage ' that will be piped to a proposed water quality pond located at the south end of the structure, in the vicinity of the existing grass buffer/infiltration area. A bio-swale and underdrain are proposed to provide water quality treatment, ultimately draining through an outlet structure that will discharge ' into the existing storm sewer system and Spring Creek. The weighted historic and developed percents impervious were calculated based on the current City of Fort Collins Stormwater Criteria Manual and the Urban Storm Drainage Criteria Manual. The weighted percent impervious and composite runoff coefficient calculations, along with the rational calculations are attached for reference. The existing site has an overall percent impervious ' of 73.7%, and the proposed improvements will increase the percent impervious to 79.0% (+5.3%). The increase in impervious area is due to the small increase in the proposed garage footprint versus the existing surface lot footprint. DETENTION/WATER QUALITY POND On -site storm water detention is not required. Refer to the Final Drainage and Erosion Control Report for Choice Center, prepared by Jim Sell Design, Inc., dated August 1, 2011. The property occupied by the Summit student housing facility, an area defined as SWMM basin 122 in the ' Hydrologic Modeling and Hydraulic Analyses and Revised Flood Hazard Mapping for Spring Creek, dated February 8, 2006, was modeled pre -development for an assumed imperviousness of 75%. Because the Choice Center improvements resulted in an overall impervious of 68%, no runoff detention was required. The portion of the Choice Center site that is the proposed parking garage represents 8.3% of the total developed site area. The increase in impervious area on this portion of the site (5.3%) is equivalent to less than 1% increase in impervious area on the entire Choice Center site, for a total of ±69% impervious area. This is still less than the modeled 75% for the same area defined as SWMM basin 122, and therefore does not require any runoff to be detained. ' The proposed water quality improvements will be achieved with a bio-retention pond that has been designed to capture stormwater runoff from basins A2 and A3. Water Quality Capture Volume (WQCV) requirement was calculated to be 0.043 AC -FT based on UDFCD Best Management Practice calculation spreadsheet. Reference Appendix A for calculations. Roof drainage will be conveyed to the bio-retention pond, which will have 24" of growing media to promote and maintain plantings. Below the growing media, a perforated pipe, with a minimum of 6" drainage ' filter gravel over the pipe, will convey infiltrated runoff to a pond outlet structure that will discharge into the existing storm drain system and ultimately to Spring Creek. The outlet pipe from that structure has been sized at 18" with a full flow capacity of 10.50 cfs which is greater I than the 100 year flow rate from drainage basins A2 and A3 of 7.70 cfs. In the event that the outlet structure becomes clogged, water will spill south and drain into Spring Creek. ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 8 of 15 SECTION 5 - STORMWATER POLLUTION PREVENTION TEMPORARY EROSION CONTROL ' A temporary erosion control plan is to be implemented for the site during construction. Temporary erosion control measures include, but not limited to, slope and swale protection provided by the ' use of erosion control wattles/sediment control logs, inlet protection, etc. All temporary erosion control measures are to be removed after they are deemed unnecessary. PERMANENT EROSION CONTROL Chapter 2 of the Urban Drainage and Flood Control District's Urban Storm Drainage Criteria 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 Summit on College Parking Garage is best characterized as a "conventional redevelopment" with just under 1 acre of impervious area on the project site. The BMP decision tree for such sites is provided in Figure 2- 2 of the USDCM. As previously stated, the site and surrounding vicinity is comprised of hydrologic soil group Type B soils, per the NRCS soil survey, with a depth to bedrock of greater than 5 feet. Permeable pavement (with full infiltration) and/or the use of a "green roof' or grass swale/buffer are the recommended runoff reduction practices for this scenario. The existing flood control channel to the west of the property currently performs this function for a portion of the runoff generated on the site. Treatment and slowed release of the water quality capture volume occurs at the south end of the property in the proposed water quality pond with bioswale. Since these existing and proposed features will facilitate sedimentation and filtering while limiting erosion, and since the existing unchanged use and limited redevelopment of the site will not subject natural drainageways to increased frequency, rate, duration, or volume of runoff, the proposed measures to reduce water quality and quantity impacts are sufficient for this site and no additional permanent structural BMP's are proposed. STORMWATER MANAGEMENT CONTROLS The Stormwater Management Plan (SWMP) administrator will be Kevin Charlson with I -Kota Construction, 4640 Pecos Street — Unit F, Denver, CO 80211. 303-883-6789, kevin@i-kota.com. According to the CDPHE Stormwater Fact Sheet — Construction, construction activities produce ' many different kinds of pollutants which may cause stormwater contamination problems. The main pollutant of concern at construction sites is sediment. Grading activities remove grass, rocks, pavement, and other protective ground covers, resulting in the exposure of underlying soil to the elements. The soil is then easily picked up by wind and/or washed away by rain or snowmelt. ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 9 of 15 1 In addition, construction activities often require the use of toxic or hazardous materials such as fuel, fertilizers, pesticides, and herbicides, and building materials such as asphalt, sealants, and concrete, which may also pollute stormwater. These materials can be harmful to humans, plants, and aquatic life. ' There are no known potential pollution sources. However, this condition should be confirmed by the owner/operator or SWMP administrator. Other pollution sources that could be present include: ' runoff from vehicle washing, vehicle maintenance and/or fueling, There are no known existing non-stormwater components of discharge (i.e., springs, landscape irrigation return flow, and etc.), or any anticipated during construction. ' 1. All Disturbed and Stored Soil: The total disturbed area will be approximately 62,500 square feet (1.43 acres). Soil stockpiles should be kept below the locally mandated maximum height of 10 feet and surrounded with sediment control devices. If the storage of these soils occurs over a period greater than 30 days, then consider temporarily seeding the soil to minimize soil loss to wind and water erosion. 2. Vehicle Tracking of Sediments: The existing site is paved and all construction activities will occur within the paved area of the site or a temporary stabilized stone pad (Vehicle Tracking Control pad, VTC) will be provided at points of ingress and egress onto the unpaved area if necessary. The VTC is designed to reduce the amount of mud transported onto the public roads by construction traffic. If the site is extraordinarily muddy, then consider designating an area to wash construction vehicles before they leave the site and enter the public right-of-way. A BMP such as this is a good way to avoid the costs associated with street cleaning or accidentally discharging large amounts of sediment into other storm drain systems. When in doubt, choose methods that prevent pollution rather than ones that force clean-up at the downstream end just before the stormwater enters the receiving ' waters. In other words, the most efficient construction site BMPs are those that prevent erosion from happening. 3. Inlet Protection (IP): gravel inlet protection will be used on all existing downstream inlets to prevent sediment and debris from entering the storm drain system. ' 4. Street sweeping will be conducted as necessary to remove sediment tracked on to pavement and adjacent streets. ' A vacuum truck will be provided on site during asphalt and concrete sawcutting activities to minimize the potential for resulting dust and sediment to discharge into storm drain systems. Surround the limits of the sawcut work with rock wattles to ' contain the sediment -loaded runoff and vacuum area clean continuously until sawcutting is complete. ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 10 of 15 5. Management of Contaminated Soils: ' There are no know contaminated soils on site. If contaminated soils are found, the contractor shall report to the SWMP administrator. . 6. Loading and Unloading Operations: The existing entrance to the site is currently paved and loading/unloading activities will occur within the paved area of the site or a temporary gravel staging area will be ' provided. 7. Outdoor Storage Activities: ' Materials storage, waste disposal, and vehicle maintenance and fueling can occur within an enclosed and secure area. ' 8. Vehicle and Equipment Maintenance and Fueling: Materials should be stored and handled in covered areas to prevent contact with stormwater, and chemicals should be stored within berms or secondary containment devices to prevent leaks and spills from entering stormwater runoff. Spill Management ' In general, spill prevention and response should include the following: a) Notification procedures to be used in the event of an accident. At the very ' least, the SWMP Administrator should be notified. Depending on the nature of the spill and the material involved, the Colorado Department of Health, downstream water users, or other agencies may also need to be notified. b) Instructions for clean-up procedures. c) Provisions for absorbents are to be made available for use in fuel areas, and for containers to be available for used absorbents. d) Procedures for properly washing out concrete trucks and other equipment in a manner and location so that the materials and wash water cannot discharge from the site, and never into a stone drain system or stream. 9. Significant Dust or Particulate Generating Processes: Disturbed areas not yet ready to be seeded, landscaped, paved, or otherwise stabilized ' shall be watered, or ripped as necessary to preclude visible dust emissions. Contractor shall make every effort to minimize particulate emissions from vehicles performing the work, including but not limited to regular maintenance of construction equipment. ' 10. Routine Maintenance Activates Involving Fertilizer, Pesticides, Detergents, Fuels, Solvents, Oils, Etc: ' Materials should be stored and handled in covered areas to prevent contact with stormwater, and chemicals should be stored within berms or secondary containment devices to prevent leaks and spills from entering stormwater runoff. The Summit on College Parking Garage Drainage & Erosion Control Report Page 11 of 15 1 1. On -site Waste management Practices (Waste Piles, Liquid Wastes, Dumpsters, etc): ' Materials storage, waste disposal, and vehicle maintenance and fueling can occur within an enclosed and secure area. The area can be enclosed with temporary fencing and accessed through a gate with a lock. ' 12. Concrete Truck/Equipment Washing: A mobile concrete washout facility will be provided onsite. Properly wash out concrete ' trucks and other equipment in a manner and location (a minimum of 50 feet away from any inlet structures) so that the materials and wash water cannot discharge from the site, and never into a storm drain system or stream. 13. Dedicated Asphalt and Concrete Batch Plants: There will be no dedicated batch plant on site. ' 14. Non -Industrial Waste Source Such as Workers Trash And Portable Toilets: Garbage cans shall be located at break areas and portable toilets shall be provided if ' onsite bathroom facilities cannot be used. Locate dumpsters and portable toilets away from drainage courses (minimum 50 feet from any inlet structures) and stake down toilets to prevent tipping. ' 15. Other Areas or Procedures where Potential Spills can Occur: Records of spills, leaks, or overflows that result in the discharge of pollutants must be ' documented and maintained. Record all spills that are responded to, even if they do not result in a discharge of pollutants. Information that should be recorded for all occurrences includes the time and date, weather conditions, reasons for the spill, etc. ' Some spills may need to be reported to immediately. Specifically, a release of any chemical, oil, petroleum product, sewage, etc., which may enter waters of the State of Colorado (which include surface water, ground water and dry gullies or storm sewers ' leading to surface water) must be reported. More guidance is available on the web at www.colorado.gov. The Division's toll -free 24-hour number for environmental hazards and chemical spills and releases is 1-877-518-5608. SEQUENCE OF CONSTRUCTION ACTIVITIES Construction Start Date (This is the day you expect to begin disturbing soils, including grubbing, stockpiling, excavating, demolition, and grading activities): June 1, 2016. Final Stabilization Date (this is when the site is finally stabilized. This means that all disturbed areas have been either built on, paved, or a uniform vegetative cover reaching over 70% of the initial vegetative density has been established.) Even if you are doing one part of the project, the estimated completion date must be for the overall project: May 31, 2017. ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 12 of 15 Construction Sequencing: (Detailed construction sequencing to be determined by the contractor) 1. Installation of temporary erosion and sediment control measures. This includes all silt fence, inlet and outlet protection on all existing structures where land disturbing activities will occur. 2. Sequence of all land disturbing activity. The initial overlot grading for the parking garage will occur early on with the construction schedule. Additional land disturbance will occur around the site for utility installation. 3. Drainage facility construction. The proposed water quality pond and relocated 30" storm sewer will be constructed during initial overlot grading to provide a sediment trap for the majority of the disturbed area of the site. The pond outlet will be protected with a temporary outlet structure protection BMP. 4. Sediment basins, temporary channel stabilization. The proposed water quality pond will act as a sediment basin until final stabilization is complete. 5. Seeding All disturbed areas will be seeded upon completing of finish grading. Refer to the landscape plans for detailed planting and seeding schedule. 6. Mulching Spread straw mulch uniformly over seeded areas at a rate of 90 lbs per 1000 square feet of ground. No more than 25% of the ground should be visible. Crimp or pinch mulch into soil 2-4 inches by using either a mulch anchoring tool, a farm disk operating on the contour of the slope, or by cleating with bulldozer tracks operating up and down the slopes (to prevent tracks from forming gullies). Refer to landscape plans for additional information. 7. Required maintenance activities (e.g. expected frequency of sediment pond cleaning, garage wash down, after -storm checks of all BMPs, etc.). All temporary sediment control BMPs shall be inspected after each rain event to ensure proper protection and to determine if cleaning is necessary. Final cleaning of all storm pipe and sediment basins shall be provided upon final stabilization of site. Garage shall be annually washed down by maintenance crews. Top level storm drain inlets must be plugged and wash water collected and pumped out to sanitary. All other floors may drain wash water to floor sanitary drains. ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 13 of 15 ' SECTION 6 - CONCLUSIONS ' This Drainage and Erosion Control Report for the Summit on College Parking Garage has been prepared to comply with the stormwater criteria set by the City of Fort Collins. ' The proposed drainage systems presented in this report are designed to convey the proposed peak stormwater runoff through the site to the proposed water quality pond and the existing storm sewer system at Stuart Street. Through calculations and review of the existing storm drain system, there ' is adequate capacity to convey the proposed flows. This report also proposes best management practices for erosion control, permanent landscaping, riprap, and on -site construction facilities to describe appropriate controls and measures to improve water quality by reducing pollutants in ' stormwater discharges and ensure compliance with the requirements of the City of Fort Collins Erosion Control Standards. It can therefore be concluded that the proposed parking garage development complies with all of t the stormwaterjurisdictional criteria and will not adversely affect the existing streets, storm drain system, or Spring Creek floodplain. ' The Summit on College Parking Garage Drainage & Erosion Control Report Page 14 of 15 SECTION 7 - REFERENCES ' 1. Urban Storm Drainage Criteria Manual (Volumes 1, 2, and 3), Urban Drainage and Flood Control District, June 2001, Revised April 2008. ' 2. Storm Drainage Criteria Manual and Construction Standards, City of Fort Collins Storm Water Utility, City of Fort Collins, Colorado, Updated January, 1997 with 2012 ' amendments. 3. "Hydrologic Group Rating for Larimer County Area, Colorado', USDA -Natural ' Resources Conservation Service, National Cooperative Soil Survey. Web Soil Survey URL: http://websoiIsurvey.nres.usda.gov. [12/12/2013] ' 4. Drainage and Erosion Control Report for Choice Center, prepared by Jim Sell Design, Inc., Dated August 1, 2011 The Summit on College Parking Garage Drainage & Erosion Control Report Page 15 of 15 APPENDIX A - EXHIBITS & CALCULATIONS 1. Site Vicinity Map 2. Soil Map - Natural Resources Conservation Services (MRCS) 3. City of Fort Collins 100 year Flood Map 4. FEMA Firmette — Panel 08069C0979H 5. Floodplain Exhibits — C301 and C301 A 6. Figure 1- Historic Drainage Map 7. Figure 2 - Developed Drainage Map 8. Rational Worksheet (Existing and Developed Flows) 9. Velocity Calculations for 30in RCP 10. Water Quality Pond Sizing Calculations THE SUMMIT ON COLLEGE PARKING GARAGE FORT COLONS, COLORADO ATTACHMENT A i i o a ison N U W r— N a) W Pitkin St E Pi[kin St Dr c James m Ct in Buckeye I CSU o St N � U W Lake St E Lake St a Q Sumner Blevins S` E PROSPECT RD Ct I " r1 ms Ct Balsam Ln u, m U c Deines a o_ Juniper Ln Bay Dr E O in co in c d N Ct E Hobbit St 19 Parker L m a St m Birky PI c y a d a U Alpe Sheely Dr m 3 m i o, Alpert Ct t 3 i� E 'c g o"burg Dr rr i Stuart ers Edge Spring Spring Winterberry Creek Creek c° 3 Way Johnson Di O Wind PROJECT Spring rk Dr = Mil �// �, c 6Y Che r O r P017d Rd cc a gal ad Chetwood Arth Dr Dr Dar t �Vth c n Rutgers Ave 4? o 0 c m 5 Duke N Q W N> O > V O ¢ \ /> j o_ o_ Columbia J_ G O WoM1h,ngton z LU 'c° Connell Ave w Vale Way Co 7 W Q r Dr Centro m6 o J J g O O n t BroWn Av 3� 0O V 2 y m O } Rd J O Ui = Princeton > Pdncet n Baylor ST DRAKE ROAD m Rd — Of VICINITY MAP SCALE: 1' = 1000' 09E06tb (Y5706tr 'w N Q ti O 0 U [a M Q 0 T c C S 7 ` O 14 L)a rn u � J O Iu 0 0 o E E O O L T cn o O O T 5. Q v M.ss r mac[ v� z th e w O N O � N N �a UiwQ 0 m 0 0 U m . rn m E m Q >, rn � c C x O m Ua a� rn E m c m 0 o J U c 7 ° ° E U E O 0 �V) u m O ~ O T CV)a O C O O � C N N p — C O L = > N 4/ 7 d L U CV N N m > N u Ln Z m� Vl d CD o m m m I ; c o U O C N U °� 0 L m N N 0 C m c o a Z m y; o w m m° cmi`° N E U) an�NE -_ N cmE a o° W ? co = v o 0 - u m O N m C 7 m N O Z @ C u m '� 0 U In m L DyyyN O m m N N.0 O m O L m m m m c m a N = U O E a L .� O y E cce ti v C H (D Cl)v N Z u Z U a Q cLi E y Q 3 1@ o ofE o a c �d ma mom. aN t Q p r m' a ayi E E L) Co M m o v C) o t ; �, m v 0� �D L c m (u 0�Q-0E m ° 3�m��om �oma.m>Emd� CL r o> t0Lo LL f mt L Tm O Zou4Eo U0 ac mE Z yC n m uom an o w m a CL E m°mn 00 07 m ama E Ea .0E O N na0 J> m m ENmZ'��o� m yc m m CD marn E ° Et ycz m o e)c t" U E O00fo a;O m m "U ° o tt Q oa EO dc0mnmm cuc T_cE Nm o aL� a ° >.oQ Oym Q O c O C °y 0 C uu C 41i E o a m m CD (Dm70au m_8 nw°n � w E a a E I3: n a Q u i cto o O amm7 > E o >. m Z N >` O U N 2 m > > - m a ° m B a `-0 0 °o N T U >cl o c t c U L 0 c O y 0 0 O mc x y a w 0 a Z E 0 m N O �] p U OU O 2 of O 0: O Q 0 to C 7 Z ® . . 10 0 O` ���0. ■ W A n W J y a b a y C C L 0 F O C U y 0 C V 4 � O T 2 y � C a° o 0 0 ` ° a m m c) 0 o z a m m L) L) o z Cm m0,0 c C C m u LI M N N Ul 0 c ° O N ._ u «, _ Z n m j N m O Z U 1 Hydrologic Soil Group—Larimer County Area, Colorado Hydrologic Soil Group The Summit on College Parking Garage Hydrologic Soil Group— Summary by Map Unit— Larimer County Area, Colorado (CO644) Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 3 Altvan-Satanta foams, 0 to 3 percent slopes B 11.4 20.9% 4 Altvan-Satanta loams, 3 to 9 percent slopes B 5.6 10.2% 35 Fort Collins loam, 1 to 3 percent slopes B 17.3 31.7% 53 Kim loam, 1 to 3 percent slopes B 2.7 5.0% 76 Nunn clay loam, wet, 1 to 3 percent slopes C 17.5 32.1% Totals for Area of Interest 54.4 100.0% USDA Natural Resources Web Soil Survey 12/27/2013 1111111110 Conservation Service National Cooperative Soil Survey Page 3 of 4 Hydrologic Soil Group—Larimer County Area, Colorado Description The Summit on College Parking Garage Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long -duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is ' for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. ' Rating Options Aggregation Method: Dominant Condition ' Component Percent Cutoff: None Specified Tie -break Rule: Higher USDA Natural Resources Web Soil Survey 12/27/2013 2111111111111 Conservation Service National Cooperative Soil Survey Page 4 of 4 x L• C ^1 A~ N N S S m - > ;ms LL N Y N c a 10 1 K '^ LL ¢ w ¢ w a w Q O I L I L L E y LL u u ty, U U U J u Im ti U. U U J r � r awn�►.fuu c M VN O f f i.. i a { 0 lq N a :: O Z A N m5n 2 c to U O U- m C p O m m m Um t or.. o ILLN p O ) C U m 5 m m u L O E T 'm O C j O U u m acy 0 o � u `y c m T y� O m E o c T c m m m m E N m m m m cE Cl m m N m 06 m m E E N m Ln ci O m m L a NI En ffi x i DI c m 0 iU 0 O� O � O ol 3 t) l' COLLINS SIRKY 14 XLL1030 m R 1%ANNUAL CHANCE FLIOOD DISCHARGE CONTAINED IN �ULVERT 23 en LL1028 ZONE AE SUMMIT FOOTPR 1� r1 101 AE L5 1 3 STRLLI 4 MAP SCALE 11• = 500' ppp - O — - � FEET I -- - T -- -- N w •.. www 24 °q 4 2 42 97 DEINES CT. JOINS t'nNCL 0987 R�" .. VHOI ILL BASE LINE '93 " F .Spring Creek FLOODING EFFECTS F M ZONE AE °94°D0"' E Spring Cn•e•k / SPRING CREEK Spring Creek PROFILE RASE LINE 1"o ANNUAL CHANCE FLOOD DISCHARGE CONTAINED IN CULVERT ,r,•��. �I�l.� PANEL Utu NII J FIRM r- 7 FLOOD INSURANCE RATE MAP n `I LARIMERCOUNTV, c a COWRADO (" 1 AND INCORPORA7F.D AREAS J MN[L 171 OF US r� �W NPo IN0tX FOP NPY OU l IAVOQITI CONTAINS I`j� CDIAIDI(IY NLAW PANEL IlMiX A, ,., LON., wMM tr AW v ivu» pn<Trn le h. sn« IS � "�. MAP NUMBEI OBD69CO9791 MAP RE VISEI MAY 2. 201 �. FldvrrlFmerV"ron \Iun:gKnuln \yens] .:ay w . pvnm a vw .ww ,.n.«cea noon my P «t •Ip ulro F#I R Onil,r 1Y"e w ro« ^a �c..cc cnenp« men6..we, �N.cK mN A� Epee mPh euE"ep.ar to the bee on Ib Bloc. Fw me I««I poacl •MdmeXm Pbou N«one c,oaa I«ururca PLn emd m.{s clvcY tti FE1M FbOp M.p Slon M wwx rr�c Mnw pd -- __ _ -- - - _ &1RUNGT= MERN RR, FLOOD CONiR01. CHANNEL 1 , GVItR IT , CI9Q I 4983 - - - - BUILDING I T ( I 1 —�--- a6t96 ----------------------- lit I I I I I I I I I I" AT CHOICE CENTER DRIVE ,16110 I _---_-___-_________ _ �_ eTAT l I I it 1iA If�� I— 4982ICI m I I I � I�. I I" _ •il fit 4— LEGEND O RADI STg WHIN NANNLYf FLSIINL STOW DRAWN NANNq[ _ WDOWD STp STUART BR TP. :PV DRAIN PPE — P. TENA IOU-M ROOOFLNN 'uk TENA ID}M TLWDNAY RROPT CONTOUR EXISTING CWTWR MC-RAS CROSS SECTOR '2,}D HEC-RAS ffCTON p.N@T RASE FLOW ETVATON CONTOUR (RGroM) T- I COLLEGE DRIVE -. mm I. EASE RLLO IIEVAPd CONTOURS SHOWN ARE VEP TXE NCAM UNADJUSTED DATUM. ME OV X RCPI CCWXS HAS CONAUT RW NCION TO NAgBB AS ITS SINIDARD WRICk SATUY. ME 91117 TO NAgB9 E HATE U914 IN ORI RCY Rf W WRENT WIN CT FORT CCWNS MEI CWIRJL kO ME NEAREST BENCWARX TO THE PROTECT, C-M THE CONVERSON FOR EILVAIIMS AT ME PROTECT 91E 15 +318 TUT RW WC29 10 NAW Kit — u own UbA � � = 0 Lot 0. Q� PRELIMINARY NOTFOR CONSTRUCTION FLC PLAIN EXHIBIT -OVERALL SITE C301A I � x'. I 49B9BURUNGT ON NORTHERN RR IY I I FLOOD CON OL CHµ EL T DO vNL f,NF[X NANRµ ABLE{ T YMGM YIES N ALLOWABLE IYS "THINK THE 9J1(EP DIN. R I 1$-RNLI (LOW) (LEA _ YE YCnw 341 a ME IIIO EYE COO[ IN I WAI -m RaOPLUN No WAGE rp51Rq GOATEE • I - — BO B9 fL1 Ip.Y (L, &.W f BJ DRAINAGEL14YLH1 61. N61.T i.MlM MN9m ; I , I P}61 05.N1IAMM V(WES I 1 �- G W • 1 1T -1�1j p:IIR I 2 • CATCHERS TO RCKwln[ I U] R-Y OWN CONFLICTICT WITH NEW FOIN111CN BSEUND I I IRR I EMSR. RL. STRUCnNµ FLANS ( L I I MIT F. 1 am To eJ,.M la TG N 67 (c I I I 1 _ I W44 LGYEEI ([GOON I Euv . A9e]SN .(1561]] x1u9®)�...� I ~� I I JY YM. LIL-u-O i EXISIRIG I I I YE SHTVI G (OR R S1. CRYY AN h {Nall[ \ R 1 E C L 4 � I I I CHOICE CENTER 1 �—'saes 'Cl eA ss BUILDING 1 11 4983 N.M a .M Fi amFc I I I. 8 • ---- I I 1 - - - - - J - SaIYOIER - KDDFL LI I I SEE SHEET =2 FOR WRITER QUALITY Yaw MILLI SiYaBE4 YHNNRIc LIEVAIW NLinllE A1q NDyyyj/11ySRaiw JI ial [IEVAnw ..96'Als I 1 E / I (EE. - Y 0.MI ( SHEET snit IT fe ]c( MM FL M.M (a MUS i NN tt • vl 826S YF &M 1 — _ 81.9 R Yf � d, I 1 1 , � I eA0•(G MI6 FL NA( N.13 (G PL.R (G DRIVE CHOICE CENTER _ I 15-aPI, (TOWN) 2u1 -! As-euLT hDw) ([w \ AS-si haw) "A ! I H ---�- I00-TIR R.Do E EXT-1M RaORAEI IW-M FIIMCPI.VI� 1 --I-}-z LEGEND less GENERAL NOTES O (REPOSED STORK MEN YAINOE 51 PRWa30 CDNnYJR AI 4 µ1 ,IV p5 Ix RRN WW NIE N4 19]9 UNADLSIED ARMµ OAn AOD J I N [L[VATM SRI TO C9MRi TREAT NLw19 TO NAWN ENDING SRFII MMI YANIO[ cm1% CCNTOIR A. ROBINS OF TIES PPW .ARE LMAR➢ IN THE iLA-REO.EATIRY 100- W SPRING DEM RON aY FLOYiLNN. ND) WIDT CNTgY To M SNEIv RIAAINS a CN.V RR ID a OTY YNIDGN M IFWOiD now IMNI AS — _ — NEC-RAS LAGS SECTOR 1 A FORA ELEVAINN C(Rlluil WEST PE URROVED RpCP To A C NDEKOKR O OCCUPANCY BENC ISSIRO. l WY aKLORRNT N THE I(CINRw (NCWOw FILL EYNVATIN, L.WDSOIPNL. ETC.) WEST BE RIEOtm BY AN AIROND OISINC S Pw w <= 11EC-RAS SECTION NWWR ROpIIN UY FORM AND M-C MCTN UVATKB CFRII IUi. 5 01ANCITIENTS WHENCAN RN, (NIN AS NCIEC TABLES M RAIXS ETC.) THAT ME LGATED IN M RO]pIAN MIST O l5-BlRll (lGN) PEAK 1p}Ip RWWIw WY FLOOD ELEVATION PENT" IwM]9) EO. G R W M UMNEN ImE1EMa. FENA A19RDYED Lost ERECT1W ,ONLY n, iau, B. CASE NO. 13-161Iy, Fa G .......... , BUILT ILM)F(Yn 100-M RWIWAY aNOTINN CASE w. a-OP-o]yM. TABLE I woos Ycroi Ys ww» is HAYIM 1M51 1e10 lenc WNI *1110,14 E9etm WIN WMe.0 BMIM WAY LOWEST RIB NBY.N All WAY IRSIGY w we}n A9e1,N WAGE IBPF (a[ . tG') Me1.T MIT YM. F1fV 6 6EC SK1FY5 AM515 AMO.}1 I YE TWEET = (w of a M WATER MNIrY Iqq MILT SIAVCNRE NID BUT CA] FHA THE SI WI OLW a MAIL B BAY RC(n ELEVATION! (BFE) • AM1 ]I (ASIDE 0 NAgM) REGL IMY RCCO PROTECTOR BEVATIN (NV() OE . 12- . AMA.]! (AM]M NAY ). 9 ME 51N C CaN NANBµ HABITAT AREA 15 Mwl 1O BE MAINTAINED IN A NATIVE LNDYwE o „ U r o Q � U bA � o U Vl a� .L.Li C� I I S S U E I i N w I 4 N FEET 1 City of Forl Collins. Colorado UTILITY PLAN APPROVAL mISME1a b xD. lF9CR Oaaaw TIIE 17 ARvnav(L FXHIBIT AIN CHECKED BY EXHIBIT ......� rrROY .-r CHECKED OV y0 •Y • eran.W UYN Y CHECKED BV1q_ DRNMNC NO OWN EKEDBN C301 - CHECKED BY Al•--� CHECKED BY Y NTS — i irrEX. SO MH _I��i S ? .. SOI,I:�III�'illlirlllli✓�� 1 EXISTING SURFACI ,• ,., G co �e lIF aEX SO AH COMBINATION . „ FLOODPLAIN LEGEND PROPOSED INDEX CONTOUR PROPOSED INTERMEDIATE CONTOUR EXIST INDEX CONTOUR EXIST INTERMEDIATE CONTOUR EX. 18' RCP SO _ EX. SH MH EE ME ME EE PROPOSED DRAINAGE BASIN BOUNDARY (MAJOR BASIN) PROPOSED DRAINAGE BASIN BOUNDARY (SUB BASIN) DIRECTION OF FLOW (HISTORIC) 1.0% DIRECTION OF FLOW AND SLOPE (DEVELOPED) 01 BASIN DESIGN POINT A A = DEVELOPED BASIN DESIGNATION 5 1.0 DRAINAGE BASIN IDENTIFICATION BUBBLE .5 = 100—YR RUNOFF COEFFICIENT 1.0 = AREA ACRES AS -BUILT (LOMR)FEMA 100-1R fL00DPLAININ d \ a s•s \ 4 � �--- e & ----------- -- " - E RR I SCALE IN FEET SUMMARY RUNOFF TABLE BASIN DESIGN AREA 5 YR 100 YR POINT (ACRES) RUNOFF PEAK (CFS) (CFS) H1 1 0.17 0.53 1.46 H2 2 0.78 2.17 5.91 H3 1 3 0.31 0.09 0.86 FIG-1 Ex. so uH \ I - EX. 30• RCP SO- - / , m.. � 1 1 PROPOSED 30' PROPOSED SD 1 RE-ROUTED RCP SD_ I rAul 71 I I I I I VI I II U\ TOP TIER OF PROPOSED OPEN AIR GARAGE _ mmwmmm _ -. l i - 1 AS -BUILT (LOMR) FEMA 1 I 100-YR FLOODPLAIN I i j I LEGEND EX. 18• RCP SD' EX. SH NH ki .ems:�� Cam: uI . �,.. 1e -� �I \ EX. COMBINATION or \ INLET TYPE-13 ��7�� PROPOSED INDEX CONTOUR PROPOSED DRAINAGE BASIN BOUNDARY (MAJOR BASIN) � PROPOSED DRAINAGE BASIN BOUNDARY (SUB BASIN) PROPOSED INTERMEDIATE CONTOUR --0 DIRECTION OF FLOW (HISTORIC) EXIST INDEX CONTOUR 1.Ox DIRECTION OF FLOW AND SLOPE (DEVELOPED) EXIST INTERMEDIATE CONTOUR BASIN DESIGN POINT A A = DEVELOPED BASIN DESIGNATION 5 1.0 DRAINAGE BASIN IDENTIFICATION BUBBLE .5 = 100-YR RUNOFF COEFFICIENT 1.0 = AREA ACRES 4 � R s a 0 0 SUMMARY RUNOFF TABLE BASIN DESIGN AREA 5 YR 100 YR POINT (ACRES) RUNOFF PEAK (CFS) (CFS) Al 1 0.24 0.64 1.76 A2 2 0.75 2.58 6.90 A3 3 0.27 0.10 0.80 CD c C7 aa 2 � Y iy a Z w w J 0 J O 0 aw o t > In w FIG-2 The Summit on College Parking Garage PROPOSED DRAINAGE SUMMARY Design Engineer: K. Brigman JVA, Incorporated Design Firm: JVA, Inc. 25 Old Town Sq, Suite 200 Project Number: 1788.5c NO Fort Collins, CO 80524 Date: March 4, 2015 Ph: 970.225.9099 Fax: 970.225.6923 DRAINAGE BASIN SUMMARY TABLE DESIGN POINT TRIBUTARY SUB -BASIN AREA (acres) Cz CS C100 t, (min) Q, (cfs) Qs (cfs) 0100 (cfs) DRAINAGE REMARKS 1 H7 0.17 0.81 0.82 0.89 5.00 0.38 0.53 1As 2 H2 O.78 0.81 0.83 c90 7.74 1.54 2.17 5.91 3 H3 0.31 0.04 0.10 0.38 11.39 0.02 0.09 0.86 Historic Overall 1.25 0.49 0.53 0.65 1.94 2.80 8.22 1 Al 0.24 0.76 0.78 0.86 7.24 0.45 0.64 1.76 2 A2 0.75 0.89 0.90 0.96 5.00 1.83 2.58 6.90 3 A3 0.27 1 0.05 0.13 0.40 11.22 0.03 0A0 0.80 Proposed Overall 1.25 1 0.55 0.58 0.69 2.31 1 3.32 1 9.45 .5c Proposed Rational.xlsx - Summary Page 1 of 1 JVA, Inc. Worksheet Worksheet for Circular Channel Project Description Worksheet Circular Channel - 1 Flow Element Circular Channel Method Manning's Formula Solve For Discharge Input Data Mannings Coefficient 0.013 Channel Slope 0.003700 ft/ft Depth 0.25 ft Diameter 30.0 in Results Discharge 0.52 cfs Flow Area 0.3 ft' Wetted Perimeter 1.61 It Top Width 0.00 It Critical Depth 0.23 ft Percent Full 10.0 % Critical Slope 0.004944 ft/ft Velocity 2.04 ft/s Velocity Head 0.06 ft Specific Energy 0.31 ft Froude Number 0.87 Maximum Discharge 26.84 cfs Discharge Full 24.95 cfs Slope Full 0.000002 ft/ft Flow Type Subcritical Project Engineer: Kevin Tone untitled.fm2 JVA, Inc FlowMaster v7.0 [7.0005] 12/18/13 03:29:38 PM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Page 1 of 1 H W J H YS V 3 W i mi J 0 W 0' H H j O 1z W W x H O 0 Z y w V N W r i q �'a I le oz =� P u S o Z e £ pf �� o� T c a Y� tl c t f f f IQ H' k=s}CCU i mR o a s .n n o 0 °° • O 7 t♦ � i .. o e e e e o e e o 0 0 0 0 0 0 0 0 `o `o o• `o `o e o 0 0- = 3 3 3 3 3 3 3 3 3 3 3 3 3 3 s "r . t s a i a 6 0 ° P erg+ m o . R t�i 0 4 2 e O a 2 c � j o� a W o_ s i O W V • sMi Y u s a o fig e_ s )� i c Y gggggggg 4 ago g 0 g 0 0 0 0 g 0 0 0 0 g 0 g o c o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ¢ a$ o 0 0 o v o o v o 0 0 0 0 0 0 0 0 o a o 0 0 0 0 o e e e o o 3 g$gHHH�HH�HBee'eee0o0'o 0000 a'000'v ��i�����3ii�}i �i �i �� e e e o 0 0 0 0 0 o e o 0 0 0 o v o e v e v o 0 0 0 0 o e o e a v v v o o v o v o 0 0 0 0 0 0 0 0 0 0 e e e e e e e e e e e e e v o e o 0 0 0 0 0 o v o v e v o 0 ago. 88888�8�8�eSoso�vvovvovov000aco�7������������ = O O O O O O O O O O O O o O O O O O O O O O O O O O o O O O a Q_O H� O O H O O O O O- « N R� S V n N R O m O w •�\ 1� \ Y Y Y L! e e e e e e e e e v e O v e e v e e e o e v e v e v e v e v O !�W P I The Summit on College Parking Garage Critical Pond Elevations Design Engineer: Design Firm: Project Number: Date: DESIGN CRITERIA K. Brigman JVA, Inc. 1788.5c April 15, 2015 Urban Storm Drainage Criteria Manual, Urban Drainage and Flood Control District, June 2001 Stage Storage Volume (pond volume calculated using the prismoidal formula): V _ (Al + A_ + VA, A, )Depth 3 CONTOUR (FT) AREA (FT2) AREA (ACRE) VOLUME (ACRE FT) DEPTH (FT) CUMULATIVE VOLUME (ACRE -FT) 4979.75 0.000 0.000 0.00 0.000 4980.0 815.00 0.019 0.002 0.25 0.002 4981.0 1,875.00 0.043 0.030 1.25 0.032 4982.0 2,690.00 0.062 0.052 2.25 0.084 Required Water Quality Capture Volume = 0.043 ac-ft Interpolates to an Elev. of Water Quality Volume Pond Depth 4981.22 ft 1.47 ft 1788.5c WQCV (Current).xls - Pond Stage Storage #1Page 1 of 1 JVA, Inc. APPENDIX B - EROSION CONTROL ESCROW/SECURITY CALCULATIONS t Erosion and Sediment Control Escrow/Security Calculation for The City of Fort Collins ' 4/21/2015 Project: The Summit on College Parking Garage Disturbed Acres: 1.45 ' BMP Amount Estimated Unit Total EROSION CONTROL BMPs Units Quantity Price Price ' Silt Fence L.F. 300 $2.50 $750.00 Rock Sock each 15 $150.00 $2,250.00 Sediment Control Log L.F. 100 $2.00 $200.00 Inlet Protection each 3 $500.00 $1,500.00 t Street Sweeping and Cleaning (includes LS 1 $2,000.00 $2,000.00 sawcut vacuuming) Sub -Total: $6,700.00 ' 1.5 x Sub -Total: $10,050.00 Amount of security. $10,050.00 L Reseeding Amount Seeding AC 0.02 $2,000.00 $40.00 ' Sub -Total: $40.00 1.5 x Sub -Total: $60.00 Amount to Re -seed. $60.00 Miniumum Escrow Amount 71 Minimum escrow amount. $3,000.00 ' Final E-scrow Amount iMaximum between BMP, Reseedin • and Minimum Escrow Erosion Control Escrow. $10,050.00 ' "The amount of the security must be based on one and one-half times the estimate of the cost to install the approved measures, or one and one-half times the cost to re -vegetate the disturbed land to dry land grasses based upon unit cost determined by the City's Annual Revegetation and Stabilization Rid, whichever is greater. 1n no instance, will the amount of security be less than one thousand five hundred dollars ($1,500) for residential development or ' three thousand dollars ($3,000) for commercial development" 4/21 /2015 10:58 AM V11788.5c Choice Center Parking Garage\Reports\Final Drainage and EC Report\Summit Erosion Control Escrow (2015-00-04).xls I ' APPENDIX C - REFERENCED INFORMATION ' 1. Grading Plan, C201 2. Drainage and Erosion Control Plan, C202 ' 3. • Storm Plan and Profile, C203 4. Grading and Drainage Details, C302 ' 5. Landscape Plans, 3 sheets I I — � I I I , 1 a-IK YDM VYRS SVRXRG Q6M ""AL 91 I NET bM FG y( I 4' Ii55 R l6 w FG tos I`DIRI " I GROLN YUL71 CMCITI)ER$ RE'. DEL PLAN OF PRGPOS D PARKING STRUCTUL FOR GARAGE LAYOUT b w SGYf M FITI­ — _ - - -__- LEGEND - - - M / YDM Vw45 • 65.6) FG e b`.N (L_ _ an '. Sal ' ///NOTECT aRe R I e6C0 M1-YF e5.b R / 7 Iy 6.LR .LNG ltli�, 6) fG I* I -➢ fawn OUT ) OF $wYCllwlTs A'cc'--��� i jl I I E .ti YN G-AE-TIE M.b FG MOS FIGIj L P I p i I EXISTING CHOICE CENTER BUI DING 1 v I E. MR.b P I 1 � I � I 5 FG l Q wIV(ISG) STORM TRAIN Ywm01F EMOTING S1 MAIN YINIIUf PRGPO� OTryw DR.W SITE EMSI4IG STTY WAIN RpE eR PROPOSED COMIDAR EtlOIING TbTDM NNNRh HABITAT 9RTER SWF NELEVARM OTES: N " MEW ARE N410 nM W wLOnn MERMN MIal AN J.teTO AL EIEVAnsi ywW 10 COMART IRry N WTRB 10 NANCRIA 2 METER TO ME 0.00.Rw E T (SI417 C301) FOR RO]➢tIM MTN J MIS a STREET on NC (PPROMINR. Mw IMAM To IN D11EHENL IN TE RDB BY LIRE " IT FORT W111E ENMQIMF MPECTOR. 41 REMAINS a R N ACCORDANCE YM THE CITY STRI INPM nYDMOS Mr DNIAap CINR MATTER. AND A EASING PRKK TO @STRIKndI AS 1W AS SIRETI MITI MANOR AND TITTERS DESTROYED. DAMAGED OR 4Y%f➢ MAE TO Ca15nIICTNN a THIS PROJECT. 9W1 a REPLACED DI IRSIWb TO an a FORT CCWNS STANDARDS AT THE aVFlD£RT N914 Mbp TO M AarPTANa a CTRCTED MROH TS w0/Ts TROW TO ME 541010E a ME FIRST CERTIFICATE Or DcavANn 5. ME STRING ORION NANRM NAB I AREA 5 WANT TO RE YMRMOD N A NAT% LNDY.ML W I� U 9 o 0 � � U cO N .1i yaw F. RATIO FGJ NAM bJ RAW ryJ Nis 'I awn FOOT 1 •.. A:I —& all (G— RAd lG e1F4N .le � .Zi !G-� I44] !4-\, — I S S U E f CHOICE CENTER DRIVE I w An r I City of Fort Collins. Colorado SICi UTILITY PLAN APPROVAL T/'S No. DLRCRFlFDN MAT[ I N DDIMK RRL APPROVED. I 6. wrA In Raw, GRADING PLAN NED¢D I cBy _ CNECNEDry crwclaD By NO, DRNN/II'G�N/D/�. cNRc1@10 BY ......•...�... iJI�O� CNECNED by POCNSD By ^� M1[: ILt_eI_ls 1 � I ' I I' 9 I 1 M OEWIN vM 1 SVNIK CL I AN401 FA Iq AI AA FIN 1Qj ' ].I 6 THE LAXO 0II C14 I AM AM ZEN - - A3 / S 1 A.vnGc c v N>a IINYM N[ PLUYB I cMTNnNv.,M QB] wxB DI S111I i I d1i I � SEQUENCE CHART c All TOP LEVEL (UNCOVERED) PLAN OF PROPOSED _ MULTI -TIERED PARKING STRUCTURE MARCH FOR GARAGE LAYOUT IF SOIL A MY /// ARNB.. UNITS Br LANOEM 450 11Mfe O / BCW`MMWNT MAY N(RKI [ t ppA � A2 1°" ora 1 .96 .75 Is w s 5 * 90 i EXISTING CHOICE CENTER BUILDING I I k vE-.999W t 4 1 hill b A _ \0I010E CENTER DRIVE _.VMS pry I i III LJ 1 I LEGEND 1G jI III NN mrz �L J 4£ BETAE ON SHUT I:vu ii • LET rENI.[ 0I ROl[cNN ® �4 PFB NO]t Ypi SR o M WENT CONTAIN LM O ;RAm STOMA MAN uArMalr VMSm STdb CRUN GR p(I:TgX a FI SNNTKE RM —MAN 1110 A 5 BALX AR[A (AtlRS) I NAW'N n' CCMY iA MINT BALN RIMEAINN NOTES: I E S N FLAN ACTIN AK III 19N IM!➢AI51m AI IIANN. ACO 110 ro Au EUVATIMS AUM 10 CNAI {py WNI TO NAI 1. NERN TOM FLCCMLAN EVX9T (SI CAN) FP `.O AN NFUNAIIM 1. M L'AMG INNER NARNN HASTAT NG Is MEANT TO BE NANTANO IN A RATITE LANOXIVE yNy^ N� 0 y U to CC 0 F L ^ � o 0. r� Vw ll D�WII AEI City o/ Forl Collins. Colorado T it UTILITY PLAN APPROVAL No. ocscNlNTION SNTN AVINovEn. BMWIN1ELE: MAN DRAINAGE 6 CMGNFC In'E EROSIONCONTNO; N�NN�1.N Ia PUN CNECNFp BY — Ns�l� Y CIECNEO BY — _ 4� er OpMINO NO OF -I BY ..N.N.�. � G L ONEMO BY CHECNEOBY _ WIN Fit Y pp rom°_ 0 A con t 9a 41e1b YAMN MMIAI I- &nA xdL ON VM& NIw4ANe ` ru N[ ME. SET SECTION NMI 0101 ME. W41I is 14.1 U M VM US[ Cee[ 1 12w00 IFFFJ100 ! - .m m 3 1Yy] "'DO14L_ ,. 1 NIIIslxlo nIY zTR Ile' All ¢[v9wrs vlorx ro ADD Y6 YLw nA INWJ5R0 1 . .. DAMN RM YCg29 r0 WAS x RETR TO RLN¢M[ FE000 NMl [N91 (AIQr M) Fol • \I p 1 M _ 9RFK.DIED NAMIN RIBIFM WA is 1[Nlr 10 tI TY' •-- -@F�- -y S Y W OA[EY INA NAMEWUANS. [' fq Ilv I _— ` fM NNlt, BplxpMr CV0.4IAIF VNUF R. 191e.[0 ! I y YO u.; PK nFe w N 1511-4 1 I C. PP[ K .. 1- :..<x>x.x -E•Meo00 FM ,Y Film: 1^ wz I if io_eunic)rw caa[cna I OUI/Iiy S 1 ZI'yRaW,,e9gYMYFNRF[e '1 Oul 5c a I I - It ^^1^ rI l 19' Rf➢ 51001 I flrfPK"WNom MAN N e•15t ]0'vl [A-N-IE 5a-Nn P j N xlwet Nl) V1 i PAC RN w N o'3 I I 1• I _ �VN/ 9 t- if �I 1977Fp — _ } 0 d% :p lab Illlli F" ' Odisk C7 L 1 -CHOICE CENTER DRIVE -- U Q) F STORM DRAIN (PUBLIC) 4990 4990 4985 Isms _ =gig? f[;«� 4985 4980 - - _--__-:._____ __.______ 4975 M a W R[y N o rn a n' Sfa,N o 53% m 4975 t.5 a NI RD' O Y!.4 4970 1 4970 .-. I1.00 12.m u.ro 14.x City of Fad Collim, Colorado m 5/I/,e UTILITY PLAN APPROVAL Na. OESCNPIgN M,E MNYNE )111L APRIpVFa. _ STORM PLAN AND 0,1ECUa BY — PROFILES wr.w..r uN e. CNFLIRL eY cmDare !maw N• MI/ylNc No C«ECKEDIN �...._.. C203 C�Ec.EDev- .,+...�..w.. o. CNECAED IN. su[1: MUSH DAME BAPnIL DART ON vc xq-y1gN NMM' sw Ilfi[Nm Kai gd YMTM ALL AYq.IXD IANITN OFs1M.CTM Isms, RECAST WLC ADJhMIG RN45 N' OW 0 MANHOLE ARAIf AND Wq1 Y.LL EACH YM RAT G91R IE[MMI X-IM ON EQUAL 01 (m ro I[ YAx) 'SIUIY Yaq' M Cp£X I Y aN s- S ny / AT NIImNA ECCEN <btt ffCnq A M' NE MIT .W15TMD KAI —� b YALDY DAM ALTERNATE FLAT TOP PLAN YALAIAE SUP 4[ qrA. nAs vin YmTINL6RAsnIG NDEMNU "T iLELYE PIASPC YAUM6 ]( gAll 0 YANQ[ MAY[ Am CNFR CAIPOIN] rEEMAH R-TT6 ON EQUAL, NM $ Aq W miWDIY 1RON YRR' IN COLW ANUND RM 11-0 was NDaNI +xE_Asr COMEBA4 910N1 AT EACH END CI AM IT NCH M -vNN Ymim Al RREA1) IFCAST-M-RAC[, KIWMNM TO C FM THETAS! (pK A0.VSMc ON ASTY C A]B WE rm W mm YN DAM NM EMIT CASKET (q ADle' NAY) YANAE STEM 1+ _ KE DETAL MS WET 1 I/Y CEMENTITE YAMED DAM m SPA( YI N NOOK 6- DEPTH mAY KTNI M m am[ AT la' PER FEET ALTERNATE MT TOP SECTION MANHOLE SECTION WITH ECCENTMC CONE TOP uK MT rm ffCTlm FEWYANNLES tEA MA fi STORM MANHOLE DETAIL 1 MIT CM DNI IUTc wTuo T� im w. m'Ti KAI A ••�I�, NOINCOME N INNNNNN�NNEN�� JI IN,NNNNrEErlrl� PN �YNNI:NNNill NNNNNN1 INN m=N n NNNNNiNENNNI 00NNNr INNNNNNKNNENNENNI I\ / 'mommoNNNNNNI NNNNNNNNNNI, PEINNNNNNNEmose NNNNNNNNNNNNA rrNNNNNNNN, IANwNNNNENKNKKAf' A'f■■I NI ANNNNNNNENNNNN ILNNNNNNNNENNNNI b '0=�o1lYY'' T ZeN, L PLAN CLASS -B YWNL YARNI4 eAc«raI L_ BEDOW YAIm14 NI X IAA WENT %FWCE WATCH LIST (W 6- ASPHALT AND V CLASS 6 XDAD BASE) UYWY SAX CAT LANE 9'H41/[EMKREh IN OPEN FTAI AN !D PAAXL _, NT" COSMIC STRAIT sgrA2 - -_ - EnSMC BASE COM4 i �� LI_NAX ' PN]IU IT I, LNRhINED Sll -A. lrnl X[Y BAY CCIYSL (l WWM) R / NgBY4 T01[ENmr DAM / SNEID uN A .5. REINFORCED CONCRETE PIPE awma N/ N NLX PALAMENT %%FACE OI AY WIN MATCH DIST DAM a' SKI LLOL�� AND 6- cum 6 XDAD 111 6. JJJJ ���� IN mrX AM IN SMUT MASONNOWNWHAT S a on LNcomi[ {�"'"{ nwN KAI PNKP ro PANID -70 IS EXISTING SMUT SDXfAQ MOIEhDoi \� [IvstNc BASE cgNY ON wN LWN 0N\iT` T\/j =I t SN Y a i" B]Ilr wk r INALLE NM MASS SEVEN ALDO IFw BA.Y MARK (: RaNR➢) s KNAC[ LN / NOTES.,CFPANI AJOPE PIPE I.I. Y LX6YAAIE YAhNN.S ARE EAND N RM(N, ONA EIGNAR PDI YFmICA ON AS REp11EO. 2 IIpPq M K M. m SkFIED M N[ASYAr Fq M LMM1 m M NMmS uO M PpRCWI q OMR OTWRS. I NwNIUY COXER IS 'A' BELOX'INISAT DAM STORM SEWER PIPE BEDDING DETAIL r MIY 6CT��TA� IpT LYMAX .A"' 1 Y L` TIN! ~1 E 4 SECTION A -A v E' M[n WIRER mAAE To wM." LN[ L PAL TRENCH MNLM'�—KKK[ A[RN61 Is N$IAl1fD N STmiD A[EAs DD n C m CAtM Y BELOW MAIL OAK 2 AEAAIT 6KR5 TO K SAME DIA ETM AS KAI LNE (1F) STORM CLEMWT DETAJLIAWT NIPS GDi MEAN r IY fi 6' i SIP >n _' Dx CAPTAIN Timm T, NOT Ir ab PER SPEOrcAngS z mru YL E >. ALL CONCRETE TO ro K rRIR RAKARD ^ LA4! PER KEonuTroxs � SMALL PIPE HEADWALL n Id 9 � o 0 X MINIMAL bq W .5 WK l'-YMCCRATIME "I 4a C 0. 4 ,^ SHED b PEA m apr v2 E sCl i 0511 IT/T i�AaNT°1Rc AND B�mL 6i NA9 ro RD] EA• `'N" MI BIOSWALE/UNDM DRAIN DETAI Ar CW] EOEMD vL WWjA ANBREAIA 11 'TanJAL MAX roY Nrwl iOP POL w W NN "AN NAEMXIM flrtpYN KAI !I>A•PIN oENER LNORs �iwT?4i�M mum AN o®w RiIAI N AWm �wYN AINU Rm oNs •.N�.• mw w ewL Im IARu CAN 4 A IAN.N 1 ,AAIm M AN w WATER QUALITY OUTLET STRUCTURE DETAILQ WITS City of Fort Collins. Colorado UTILITY PLAN APPROVAL 6/I/Is N0. DESCRRrgX art mw 1RLL APPROVED GRADING AND c11ECKFD ar DRAINAGE DETAILS Ir�AwAAr lrr nN CHECKED RY AN, CHECKED ByAN, BAR_ DRAARc —No. CHECKED BY C302 CHECKED BY Al'v'�PI�• _ YME'. CnECNED By mTE re..el_Is OWN I 1 1 1 1 1 1 1 I 1 1 FORT COLLINS ASSOCIATES, L.P. Planting Details nDECIDUOUS TREE N3 2 CONIFEROUS TREE M5 AN PROUHM All RAW 1 v�LU6 PLANTING Nq BLUE BY T.,M 1 L®MLOAL nPERENNIAL PLANTING wis LANDSCAPE CONCEPT ADAPTATION TO SITE CMDnKJNS MEE SPECIES SELECTED TOR BEEN NATURAL TRUE REPRESENT LOCALLY�T� NATIVE ARE WMEWF DWExIA W EO M COX PLAINS D FE�THI LIS ALLv SPECIES DNERSITY CANT PUCC TRESA WTrvt E CENTERFEW VMUA1C MEN MMSPOWA TREES USEE AEE4FORT HAS HOT CREATE MONTH POILEPILWI.IER USE All BY SARAN rOCTlA ALMS EUETAµME1MDBUPC LETR By MC Mn wDAE s IOIENMIT ED MIDUGM cODl D AIEI AIE RERATAvr roMENU E CHOSEN F EDPWJI MA1ERwsrxRauaxwrTIE BITE HAPe BEEN CMD•ENFMLoxxevm AN�RFMsl,wRro wE HATo. AIAWawxrtprpcaM.mq TRC TWBwNE suw nMwewo LANDSCAPING ASSURANCES M1 IAHDAUPxo.RDPDMD FM INBTNwwx ws aE xuwpwlNM ETA%OF THE LETTEROFFTHE LANDSCAPE W p0100R FXRIYN/ FOR HAS cLARENE r PMILVYE PRIORR TION O USSYANNCCEOa AA FIwL CV1?FAVW.TE a K Ww:� SUMMIT ON COLLEGE PARKING GARAGE - LANDSCAPE PLAN City Of Fort Collins, County Of Larimer, State Of Colorado CHOICE CENTER SECOND FILING PROJECTADDRESS: 1653 S. College Avenue through 1807 S. College Avenue, Fort Collins. CO 80525 APRIL 2015 Vicinity Map V�60ADL PROI'116 t� ''I1 • I`v L�JECT�EJ �. A_r C US Q US I W N I DUE I I E U DRAKE ROAD I' I SCALE 1'=1500' D Project Contacts Landscape Architect Applicant and Owner/Developer TST Inc. Consulling Engineers Fort Collins ANANCEnes LP >WLA"FAXVA1•Yn WM. HOC. SALal F]I Cal PAY oft, . c0. MIS BxmFylAn AL3NCn AN gMEEESA57 AN EOSIN•P•w SEED MIXES FAIL TUDIEALiM FAX IT05I•UNM Civil Engineer Traffic Engineer JVA, Incorporated CAB Engineenng, LLC 19 511 SRAM 51 THANLAW B ,, CO NW2 UOTCHI, W BR51• PH. IWOI iES MW PH (970) BHUTANI FAX Ib]44AI95F FAX 191MEDM•] Surveyor WAS - Nolte Vertical Five SBCO S cI SAFH SUN t0J PN. IIDJI NDYO FAX I303,7 -9001 WATER USE AND MAKrENANCE TABLE TL" _ MBIIMMM WSW U9e ANSI MMrN pnMMI WhMrUM TW S4 B s0 NaRAa MIA LMClraM HQN LAW Low LOW MBe LOW vary LOW at - 9.88E 30314 7578 89314 (LMMrBI TB 3 to 0 Sall 1T7,558 9D.9M 75.780 0 TOeI 138.972 An 25 W31D Index to Drawings SHEET NUMBER AND NAME 1 I COVER I - PVLNTING PUN 3 TREE MITIGATION PLAN FORT COLLINS, CO PLANT NOTES I ALL PLANT MATERIALS S,MLL BE M ACCORDANCE WONMN SPECIFICATIONS FOR II ORAOE z. ALL TREES TO LEST CITY OF FORT COLLINS LANE USE CODE S7MN RDs fOR SEES ] CONTRACTOR SHALL MAINTAIN ALL LANDSCAPIw DURING CONIMUCTgN AND FOR A PERgD BE 1 MONTH FOL.OWINb SUBSTANTUAL COMPLETION A BEEN YEAR WMRA FOR ALL PLANT MATERML SMALL BE RIPJIDED"TABLIBMEENF AMOWINTEwNCE OF ALL GMSSESAw FLOOD CONTROL MNSIIRES SFMLL BE THE RESPC ILITY OF THE CdR TOR UNTIL SMWD OAF W THE CITY OF EMT CML EAOSION ABC fLOOwNW ADMWISTMTM. • WMRACTOR IO MNYSµL Og1LWRANCE Tp FL^N.IMPALIEC MFAS ALL DISTURBED MFAS NOT RECENWG TURF SIMLL BE RESEEDED WITH THE WI PILMRE SEW MM SPECIFIED ON THIS SHEET 5 ~A CIM 3WV S MO PLANT LOCATIONS MAYBE BALM DURING CONSTRUCTION AS REWIRED BY SITE CONDITIONS WITH M4RGVµ OF QNHERS REPRUENTATNE OVEN.A L ALUMNI AM OUµOY TO BE CM5157ENT MAIM APPROVED PLAINS S THE MRMt M SYSTEM FOR LANDSCAPED MEALS SHLLL BE REVIEWED AND APPROVED BY THE CITY OF FORT CIXMS WATER UTILITIES IRRIMMNP TOSE REVIkIYEDAS PART Of THE CONSTRUCTIMRRMIT RENEWPROCE55 THEMRIWTIONSYSTEMMUSTBEINSTµLED AC MR TO APMOVED PLANS OR AN ACCEPTABLE FINANCW SECUNTY DEPOSITED WITH THE CITY PRIM TO ASSUANCE OF A CERTIFICATE OF olxwMcv I. ALL TURF AREAS SHµL M IRRIGATED WITH AN AUTOMATED POPIF IRRIGATION SYSTEM ALL SHPIR BEDS TO BE IRRIGATED WEN A DRIP SYSTEM ALL PUEWML &MIS TO BE IRRIGATED WIN SERI POP SPRAY HEADS NATNE PNRRE MIX AND TRM AREAS TO BE IRRIGATED LAME FULLY ESTNOBNED BEDS 15 FORMEDI ION 0YEARSI • STREET MEE LOCATIONS SMALL BE ADJUSTED TO ALLOW FOR A MINWUM OF A•DCLEARANCE TO STREET LIGHTS 11. MIMMUM IF THE MEE AS MFNMENlA l • TREE LOCATIONS SNLLL HAVE A MINIMUM MPAMNM OF R TO WATER OR SEWER BERVIM LWE5 AND 10' FROM WATER OR SEWER "IN LINES 10 SMEFT MEE LOCATRUl S LHAVE A MINIMUM MPN tQN OF •' BETWEEN GAS LINES 11 LOCATE µL U7L i ES PR OR TO ANY CODING OR LANDSCAPE PLANTING IE TO THE MINIMUM EXTENT FFASBLE TwINGS. HATS REWCVED DURING COISTRI nMMI SHALL BE CONSERVED FOR LATER USE ON 13 CONFRALTM AS RPSPONSIBLE FM N FEEP OF MRRIGMS WARNING SIGIMGE. OR OTHER MOTECTNE OEVRS B ANY EXGVAT SARE LEFT EXPOSED AFTER OaSEE WVRK HOURS 14 E IT THE CONMACTM9 RESP BEITY TO ACQUIRE AaI NECE55ARY PERMIT FM COMMULTON CPEMTIOW W PUSHED RiGnS F.WAY 15 PRIOR TO INSTNUTg OF PLANT WMRMLS. THE SOL M AIL N $S KAREAS. INCLUDING PARKWAYS ANTI MEDIANS. SHALL BE TgROUGHLY LMBENEO TO A DEPTH OF MIT LEW NAME EIGMEEN I ISI INCHES AND SOIL AMENDMENT Sxµl BE 1 ROI Y INCMPOMTEO INTO NEW SOIL OF ALL UIaBCAPE ARHS TO A DEAN OF 9p AN INCHES BY FILLING. DI CENG M OTHER SUE.VLE METHOD AT A RATE OF AT LEAST THREE OKUBIC TREES M SOL NEHMIENT PEA ME TFpO5A E=I SQUARE FEET OF LANOBC MU AREA 10 AFEES TREE PERM WV BE MTAWO FROM THE OFFAL BEFORE Al TREES OR SMLLeS AS NOTED CIA THIS PLAN ME TANTEO FUJI CA EEL Oft THE PUBLIC RI T-0F.WAY THIS INCLUDES EONES BETWEEN THE SIDEWµK AM CURB MEDIANS AM OTTER CITY PROPERTY THIS PERMS SHALL APPTIOVE THE LOCATION AND SPECIES TO BE PUNTED FAILURE T0087AN TMBPERMEWYHESULT M NEPLACMGM RELO TONG TREESMOAMLOONCERTFICAn Of OCCUPANCY 17. THE DEV LK S lL AC1 THE CUT FORESTER TO INSPECT ALL STREET MEE KANTIHGS AT THE CO ETION OF EACH PWgE OF DEVELOPMEW ALL TREES NEED TO HAVE BEEN IN5TAI A5 SHOWN ON THE LANDSCAPE PUN APPROVAL OF STREET MEE PLANTING IS REWMEDUFMEFM MMMW OFEACNNNSF FURL WE ILA OBIAIH APPROVµ BV TIE CIT ipiESTENFM SMEFT LTIEE9 ANAPHASE MULL RESULT IN A HOLD CERTRIpTE OF OCCUPANCY FOR FUTURE PHA-ALS OF THE DEVELORENT IB EXOTIIp TREES AND" M THAT PUN ARE TO BE PROTECTED IN PUCE SEE THE MEE W TIGATTON %µ FM SPECIFIC PROTECTION REQUIREMENTS ALL TREE Pral MG AND REMWAL q TO BE PERFORMED By A LICENSED FORT COLLINS ARBMgI PER THE Cm OF FORT COLLINS LAMD ME WDF 19 "OFFICE ALL ROOTS THAT ARE ENCO,WE RED DURING 5U0EWKK DEMOLITION ANDCONSTRUCTION ED WNOT REL MORE THAN 3' OF SOIL WITHIN NE TREE PROTECTION MINE IN MDER TO LAY SEEN SOD 31 BONE MCHS TO BE PULED ON STABILIZED CRUSHER FINES B WRED WITH STEEL EOONG a ALL SHRUB BEDS TO PROTONS AT MMIWM CHOICE NATURAL M]OO MULCH FROM HFgEMAN EARTHCYCL£ MATERLLLS M EMT COLLINS CAR APPRMED SEXUAL L17LE BLUE STEM ITIOURD SUED CAT7 LATE BUFFALO OWNER E AT F�MOF N no BE BLUE G� LOTTLE BLUE STEM SETFAAA 7 LIES FEET BOX BE �s�RN 25% CANABLA WELD RYE MBN SATIMOF TOLERANT SITE AREAS AN S� OF NED I AS OF MET BY RAT, AT A STATE OR =WEIG��'�T.1� !EED 3 ME I'M BEEN BE CREEPING RED FESCUE SHE. SH SEES. P01gOq LANDSCAPE DRer110N MIX AFT W, ONINEE COIMM E soP KNME AN ALOE S. ,Uu SYOO GMIN .._ �•AA•NM LInYOMm.. J.. . ___ INRIRU MMF SRI IMM„nOSM S LOTH Maw S�gIAAA E[EIwMn > EI Mom 'Aww1IOH., HEb E GwMW wIMm wcwaPA. SHEET All L100 'El INAME SUMMIT ON COLLEGE PAHCIIIC GARAGE TST PROJECT NUMBER. 1216DO01.Go DATE. APRIL MIS SHEEP. tOF] CALL BEFORE YOU DIG ALL VT9 Tv MTPFC TM CENTER OF CCIORACO 1-800-922.1887 or B-1-1 mraXTN•oAFlan ALI A MW. '� I _' } -� • PES1gIf D51 VRY01RE/$ O : -_ _. MUw �- --..-_ MAXSEENATCL v SEE corEP EDP Yv MANOR sRRRo cttex elhrfR. mDl+v3nns -._ -_—_—� • _.. -- . Ep) ALLOWABLE USES WITHIN TINE SUPPER ZONE a PEER 143[RRYI)4t Of NNE LAHO VSE CODE • RES119 oC;5 TI- PHc OE — — — • _ — — _ — — — 15ANTrNISM6�1 EAICCE i a Q"'.. 0 -RIiYE- I O SO yr ,Im II U `. AL.'E O j �SyE. - Y: ,' IEIf.W .1.1G.1E1 U1 l3 _ -- ---- -------"4-3-•_11�{�r(y/���y^'■y,{� Ist14u,M /yw115U.0fWR4fuuM SPNw CttC.INR LA -AT) 1 ROM 01 tt1.EM'iHD'MMOECCMI- i1' fIW W 1)IR _ 1 C OWAMONARGgL®WIM 11Er l B I t BW W LJAT 1. Y ufONItN NDw MCOVFII 1 •4SSTRCt" R[iA ,y I . l]L 1 ! tRUCtSW REPAIR •'•Summ11 • LA n 0 ARIAL5i TO INS [' DEEP ) 1 i'i ipN DR BETTER r.nIn40MU BEfn i� .I 1 OM� • • _ 6FF CDYERf I . 1. III RIFRIW BE3BI 0EXISTING INFOOW11E TREE (3 l Z -111 • I �.-- _ 1 1 JI ) I I i. • II IB 1111[ 1 /S Ir I y MWIOR ALL it ORFlN6 EN5 �FISIRG EVERGREEN AEf IIYRI ,y '- "= I1I`E1�1'EI NIE'R"PIG�MIIN ` L �- U,,. I.. R -.UM '! I II111I I ONTO I .rcf 1N* • 1- I� fDOF Ci RY01RDOMbLf FI — 111 b. , LsJ )]D - 1f��TT V I - COBME,M1R, 13iY-. �. I' :T ♦ ,m sn+R"�NEE. B�f.fR'-�� ��@* �i� ¢ I � 11L 1--• GRGS RR r4NfV LUVw,7rP,� n W TO b f Y. ygEGGEER BIFEER NOT1vMF$ �� Q j}I Ylf43 MIGMKEED Pat`� T4L NNE CM55 SEED wv YECOVER MW CREEKSIDE PARK I � � �y IIII�III CIS Jl1'J,K 9 l INM T T 9r jl _UG - all fy,— 2 J 1COOK; w Rc a 0- 1 •� ~I — �) w / cM AR E x YIS ml - 1111 Z • YNCiIIM, v 9r J1E12 BENCH TOILE IpOELCILL1S9iHIM ! J Q 4 fRDN CALORFDJ CI Rm MITI o z J BENLES TO EE SM EM TED MOEERTIV LRR I. r-- I N 1 WFEE 4l1ElF-Mft CIIMDOM EyEAEEN SPRIG RUL YOWRO EV6TEY TORERSTALLEDRR YWIEWTY®Y[ffIG11011! mm to ME GREEN 0 6J PLANT TABLE n os Rr rarBesY.. w..i1LrR __. 4"reiwwm 6' Yn M. 1l:ri IS,1REPool wrr r.E r urwB. w.. m....INRR E.r. wIMR rBn • snn Er r Ys DODOE mn IT •) E.PbTbP 11w WSuna ) 6 1 6 La Clot SOY I IN •cRM Eno. �b AL p Y TO 15 )YYw W IVC4 6 Y 4RT 'Mt. CNY• 6 12 4 E wYn CoW SSo S of OeW,1Wm.Y4nOP EvgPR CEM,e W,pn 0 p v 15 MMun EY IV6, 6 SO D.W)I.icec • E c 6 YY.n Lwc S44 S 1E 4W igc62wM' NY 8PYa1 IS SO TO Ps Lw MAIL 1w4I SVfRGfB smm 1 OJ} CMs mcs 1lIYry VMT b Y O DO La MY 1R41 V Ic A.p1W kgWmBEW Uw> OWN, , c,. ) ) 1 • vWTLOw Cut TOOK INKS I) W AEewPuL OW1CiWWn YP bR fib^ 11 I3 A 6 WNLM fi N WW 6 Y X11RPR1r W.IY}c $N[.415 RIeNc 6 ) • • 1w 9 IE 1nMSL[.wban lcs NxLIwMu1 TO TO ) 12 W9ls COW AGW n AP RWO1dyq.eabWWRW[1Wo wZN POCONO 1P Or 3 s 1s COOK TOO, MNAW%TALY s 6 LM • • 4 s VYe lw coal 5" h •6 1 ) 1 } War LAW Cant IGal 9 To D'wW 6Ta11 W*W# D1¢W DWOWaW • • I • syn Cm SGY 13 OR Cwnqulo Ka EPen ININ GeI 4 S ) ) Ls Coal IW 9 W 4MpsFCY RR IH LtyW AMC In 3 4 ] I IYYIn COOK SOY 43 M MHaTap soaonaPR ( B,WAVAS d 3 2 1 LOO ow I" I R C s1N1,WlRR RVmt BMES IeYN • 10 6 ISYYcnOcIn INS 6 M Ov rAWu11 figs s,WM T 5t ) TWO COMMIT ICY 12 e1 ewrymw 4luW. 2MN I OW EOn ew npyl ) ) 1 LOOK SGY AT ro Ow+3W+n Ere BLWs Oa, MIN6Lw RW gW1n.4 a ) Col :M1I Il w 4 s 4 • wW TOOK sGV fit 9R YY1avn RAcun 4nMWN C RYs11YYR1A sw[n 3 . ) t La cOW I401 13 Rol PM,%% PRINT, o,Wr ft w Turl 1q Ne1en6N in Iw 4 • tod, cON 54 VU 3 YE NRINLAWE • TO • 12 L (CAR l 5 cW TtnwW 1pert•IW WImmm, NMr Cb'1W4 Lo- (oe 14Y 11 Pc M1w,W ERw CeuwW 9.x,M is missile E Il 3 E LAM, !M WEAK E U C "'Rpcn, TImpo Cp TV,Coal :GO 19 CIAR,W 9WO, u,uon Mocov /,n MWne I I I 1 1.00 DON SGY j E U4 LOCOSNa'rtI NpR1, 1V11eFR/AR Low CM 14Y )D 10 D ]0 p ) L ]0C. SHEET - L101 2oi3 TID S,CTIIAJ A 4 1 UT TIA, TAFT pHE PANUFAL HAS'TA Q IS SEARS TOBE WIN A 1. a AS A NATIVE LANK E O ED Q 5 FILL,I Y ED O ED Of LLJ L(j 1 © U TALLMTN'EGRAASSEEOWM '^ SEE WAR FOR Biz V o a 0) . .. _. - .. W1 RESTOREOS RBRI PE B E SEED .—� MIX �SEE COhRFOR 4R -� -�- I. RESTORE DISTURBED AREAS OF u nT AON so muOReWru _ _ _ — _ _ _ _ _ _ _ I O l i CREEKSIDE PARK j I I II, 1 I co FROM o eE MOCEI I BE 6URFA W L E IV,' AR R 20 'M A.F I' i0 I' RESTORE D'SIORBED A a. �L O NT SFFORAFTE SEE COARF(TR NI, AS 1 C I A ANAI,FhIXJNEARYjTYPT -OIEEERSC EE ION NINsslEEl THIFIKULL (51CIA'f) CAL 27 401LET EN BCREEMS .Inrn•lou•nuN EISMAT; TREE- TO BE REMWED — -- F I III" / MEMSkDON TREE WIMCMCE � cENTEAECYmP) M P• M — PUMu TD BE cahREo wrtH ce<CgATIVE ArvEACOPBIEN'gABAANTO mM I-Cu E — DWITH TER ou4lrvMEIN —_ _ PBI•x ox covER I CWEREOANG SECOAEO gMEPMNHG, L MEAIIO}BINEEI [EVE ICJI TEREp ALL 1Y0REEN�EENS EA6rNGTREE.TOEf REUSE PICW•IEICA•140 NOTACHONCECEMEq Mlrls I I 4V{jM�tNJ�4t� I - EEWEO�sP it I J L._ - - RRR._: CAR CATCMER l0 RETAIN C 1 L NNITVBI C ' RFu IN 4TV PLANT A ART / ELr 1yE 'ITT N E110 REMAIN —�TG T IF SLID SUNI4PEA kTI �WE �� 7. TE I D;NII eNDPFANNNos C0NbTRLFTF)N RERur ANY AGEDAREAS TO THE RNAT ITYPI IIIIOIIII .i LIVE TALLRITNEOMSS SEED MM _ .. SEE COVER FOR MIX I y IT PNGPE Mry LWE ' " I 1 MIMKATESAMEE MATTERS UMIIEDFOR401GATIDI THE pLIGWAL CHOICE CENTER POP THAT G TOeE REMOVED WITH FEET PROJECT BTOTAL MMFAM)N TREES ME NAPI BY THE PARRNO WR.AOE RAD CATEE M EXISTING TREE MATTE MCACTED ITY ME PARRNOOOAMGE BVT WAS NOT A 4TGAT10M TREE IN TE CWICE CONVERTED RMCATES A TREE THAT W5 BEEN W ZED IN ENTRIES OF A UOGATION TREE THAT WAR REMOVED WRWG THIS PROJECT FHE ITYP, r I� THE PROTECTION SPECIFICATIONS 'AT EXTEMNTOF OOFFAA PERR100RACH USE 0E ANY PROTECTED DEPTH 6EMTM EE MORE EMAIL BE x0 CREEDIR HAS EVALUATE 0 AMR APPOINTED NO 101 ALL PROTECTED DE ICTED"SE "SENT TREES WALL BE RWED TO THE[m OF FORT COLUDISHOPOSTRYSTAMPAROS. lµl PRO ECTEDTESTMq TREESTO AND WORLD RUCTION ONARIDERS WTTNSUCH "AREAS TOE Of ERECTED SITINOLNNE RO'R'O FEFICMA BMW OF TOM y RED MTN IE AM CLOSERSIX FIT THE ONwIN OF I BE NO[xOREVER E GAMIER THERE iM`EEMOVEFTNEMExT."DOWN DEEM TOi M.M. THE STORAGE DECI FORT of a�vEIMYENT. TETRALUL 09 ME STORAGE AND PSIANT THE CLEARING Of EQ�FWNT OR ROTECTOEOTREECNYENT. WINES SM DAPEAWTSwYEEFASTENEOTO ML III LAWSUIT NARROWLY MINAS CONTAINERS PROTECTED TREES AND SEPARATED FROM C�?N TQNOftLANOO THAN USERS ROADNwNTSOFWATAND PRor�CmEETENNEw AEL EACH TYPE AS SECTORED IF HE DE..h BE, ON TWA NAVY W)FEE;`A PART ARTS VESSELMB OR POP NOON STAKE O$L NE D THE CONSENT "MATTERS OF SUCH AREAS OWN CLEARED UTILITIES IRq ;IN M IN 161 04CHER MALL OF UNDER TO MW *COMMAND EXCAVATORS REN LINE OR ANY ONDERGROONO HALL THE INSTALLATHRI OF ACCOMPLISHED By BURKINA REPOOL SYSTEM OF PROTECTED EEETIW TREES AV A Mi�O DEPTH Of DETANLE 0EEDNEETEESTABLISHED FROM RBMEMTHI OFTTHEE'FREEEGHT AS EE UNDER::RKIAND 6 SCALED FROM w 0 Q Q C7 Z Y a a w C7 w J J O U z U F- J (,)cT PROTECTION I / CONMMCMN BARRIER FENCING PUTS SETS IWO Nw z gg n. Z waF- as 0 r az J w Ir SHEET - L102 I 3Bt3