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Home My WebLink AboutWINDSONG AT ROCK CREEK - FDP - FDP160010 - PLANS - UTILITY PLANSA Westrian Company UTILITY PLANS FOR WINDSONG AT ROCK CREEK A PARCEL OF LAND LOCATED IN SECTION 4 TOWNSHIP 6 NORTH, RANGE 68 WEST OF THE 6TH P.M. CITY OF FORT COLLINS, COUNTY OF LARIMER, STATE OF COLORADO APRIL 2016 DELICH ASSOCIATES JR ENGINEERING, LLC JR ENGINEERING, LLC LENITY ARCHITECTURE DESIGN STRUCTURES SITE LENITY ARCHITECTURE ENGINEER'S STATEMENT City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date All changes, addendums, additions, deletions and modifications to these drawings must be approved, in writing, by the Fort Collins-Loveland Water District and the South Fort Collins Sanitation District. Mr. Terry Farrill, P.E., District Engineer Date Mr. Michael D. DiTullio, Manager Date FORT COLLINS - LOVELAND WATER DISTRICT SOUTH FORT COLLINS SANITATION DISTRICT City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date WATER MAIN PROFILE STA 7+50.00 TO 14+50.00 Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Know what's City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date WINDSONG AT ROCK CREEK IMPERVIOUS AREA TREATMENT PLAN City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date New Impervious Area 90,342 sq. ft. Required Minimum Impervious Area to be Treated 45,171 sq. ft. (=50% of new impervious area) Area of Paver Section #1 7,322 sq. ft. Run-on area for Paver Section #1 (1.0:1) 8,534 sq. ft. Area of Sand Filter Pond C 7,234 sq. ft. Impervious Area Treated by LID Treatment Method #2- Sand Filter Pond C (8.0:1) 58,174 sq. ft. Area of Sand Filter Pond B 5,813 sq. ft. Impervious Area Treated by LID Treatment Method #3- Sand Filter Pond B (3.0:1) 17,402 sq. ft. Total Impervious Area Treated 84,110 sq. ft. Actual % of New Impervious Area Treated 93.1% New Pavement Area 33,178 sq. ft. Required Minimum Area of Porous Pavement (=25% of new pavement area) 8,295 sq. ft. Area of Paver Section #1 7,322 sq. ft. Total Porous Pavement Area 7,322 sq. ft. Actual % of Porous Pavement Provided 22.1% 50% On-Site Treatment by LID Requirement Porous Pavement Requirement City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Tributary Area Percent tc Q 2 Sub-basin (acres) Impervious C2 (min) (cfs) EX1 2.99 2% 0.10 23.3 0.4 EX2 0.17 2% 0.10 14.2 0.0 EX3 0.19 2% 0.10 6.8 0.0 OF1 2.30 2% 0.10 23.7 0.3 Existing BASIN SUMMARY TABLE City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Tributary Area Percent tc Q5 Q100 Sub-basin (acres) Impervious C2 C100 (min) (cfs) (cfs) A1 0.39 65% 0.66 0.83 5.0 0.7 3.1 A2 0.50 71% 0.72 0.90 5.5 1.0 4.2 A3 0.11 67% 0.75 0.93 5.0 0.2 1.0 A4 0.18 59% 0.64 0.80 5.0 0.3 1.4 A5 0.24 90% 0.95 1.00 5.0 0.6 2.3 A6 0.24 90% 0.95 1.00 5.0 0.6 2.3 A7 0.10 90% 0.95 1.00 5.0 0.3 1.0 A8 0.19 7% 0.12 0.15 5.0 0.1 0.3 A9 0.09 73% 0.77 0.96 5.0 0.2 0.8 A10 0.02 39% 0.42 0.53 5.0 0.0 0.1 A11 0.12 84% 0.85 1.00 5.0 0.3 1.1 A12 0.29 47% 0.49 0.61 5.0 0.4 1.7 B1 0.04 14% 0.19 0.23 5.0 0.0 0.1 B2 0.21 13% 0.18 0.22 7.2 0.1 0.4 B3 0.08 65% 0.70 0.88 5.0 0.2 0.7 B4 0.14 75% 0.78 0.97 5.0 0.3 1.4 B5 0.02 20% 0.24 0.30 7.2 0.0 0.1 C1 0.06 25% 0.30 0.37 5.0 0.0 0.2 C2 0.13 26% 0.31 0.39 5.3 0.1 0.5 C3 0.10 33% 0.38 0.48 5.0 0.1 0.4 C4 0.09 22% 0.27 0.33 5.0 0.1 0.3 C5 0.05 80% 0.82 1.00 5.0 0.1 0.4 C6 0.20 94% 0.92 1.00 5.0 0.5 1.9 BASIN SUMMARY TABLE Top of Pond Volume WS Release Volume WS WS Release Elevation (acres) (ft) (cfs) (acres) (ft) (ft) (cfs) (ft) Pond A 0.452 - 0.45 4920.55 0.5 - - 4920.55 21.7 4921.55 Pond B 0.205 0.023 0.205 4920.55 4.5 0.023 4918.47 - - 4921.00 Pond C - 0.078 - - 14.3 0.078 4919.02 - - 4920.00 Total 0.657 0.101 - - - - - - - - Detention Pond Summary Table Storage Volume Required (acre-ft) WQCV Required (acre-ft) 100-yr Emergency Overflow Pond WQCV DETENTION POND B DETENTION POND A POND C City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Pond A Pond B Pond C Elev. A (Pond Inv.) 4915.00 4917.58 4916.50 Elev. B ( WQCU Elev) 4917.01 4918.47 4919.02 Elev. C 4918.01 4919.47 4920.02 Spill Elev. 4920.55 N/A N/A D wq N/A 0.89' 2.52' Ls 3.92' 3.92' 3.92' Ws 3.92' 3.92' 3.92' Wo 1.0' 1.0' 1.0' Pond Outlet Structure Table City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date City of Fort Collins, Colorado UTILITY PLAN APPROVAL CityDate Engineer WaterDate & Wastewater Utility StormwaterDate Utility ParksDate & Recreation TrafficDate Engineer Date EnvironmentalDate Planner Date Minimum 30-mil HDPE Impervious Membrane 2" Bedding Layer of Crushed #8 Rock Minimum 4" Layer of #57 Base Minimum 12" Layer of #2 Rock Sub-Base Interlocking Concrete Edge Restraint Pavers 1 8" Hand-Tight Joints Perforated PVC Pipe Sub-drain 2" min. (Optional Depending on Underlying Soil Conditions) Undisturbed Soil Swale Topsoil Interlocking Concrete Pavers Cross Section A Westrian Company WINDSONG AT ROCK CREEK LOCATED IN THE NORTHWEST QUARTER OF SECTION 4, TOWNSHIP 6 NORTH, RANGE 68 WEST OF THE 6TH P.M., CITY OF FORT COLLINS, COUNTY OF LARIMER, STATE OF COLORADO SITE 34176 A Westrian Company WINDSONG AT ROCK CREEK LOCATED IN THE NORTHWEST QUARTER OF SECTION 4, TOWNSHIP 6 NORTH, RANGE 68 WEST OF THE 6TH P.M., CITY OF FORT COLLINS, COUNTY OF LARIMER, STATE OF COLORADO