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Home My WebLink AboutSite Certifications - 06/26/2020 June 19, 2020 Wes Lamarque City of Fort Collins 700 Wood Street Fort Collins, CO 80522 RE: Permit: B1905428 – Bucking Horse Filing Two – Major Amendment Fort Collins, Colorado Dear Mr. Lamarque: This Overall Site and Drainage Certification Letter is provided to verify as-constructed conditions for Bucking Horse Filing Two – Major Amendment. Washburn Land Surveying completed survey work June 10, 2020, to verify general compliance with the Final Utility Plans for Bucking Horse Filing Two - Major Amendment dated June 6, 2019, by Northern Engineering. Included in this drainage certification submittal are the following: Appendix A - City of Fort Collins Overall Site and Drainage Certification Form. Appendix B - City of Fort Collins During Construction Inspection Checklist and photographs provided by contractor. Appendix C - As-constructed Rain Garden worksheet. Appendix D - As-constructed record drawings for Grading and Rain Garden Cross-Sections Sheets. Appendix E – FEMA Elevation Certificate We have concluded, based on the attached information and personal site inspection, that the drainage features for the project site have been constructed in substantial compliance with the above referenced Final Utility Plans, with the following exceptions: · Item II.A: No major drainage channels exist on site. · Item III.A.2: There exists a small section of drainage swale on the west side of the building flatter than 2% slope. Due to the small area draining to swale, the Northern Engineering anticipates no issues with drainage. · Item II.A.6: No major drainage channels exist on site and no analysis was done. · Item III.A: Only private storm drainage pipes were constructed on this project. · Item III.B.3: Northern Engineering did not observe construction. Northern Engineering was unable to verify the joint types or construction methods used for the storm drain pipes. · Item IV.A and IV.A.2: Pan on the west side of the parking lot has a small depression of approximately 0.07’ just north of the existing inlet. Due to the small impacted area and limited expected ponding it is not thought that this will be an issue. The contractor has been advised that this deficiency may result in shorter life span and potentially require additional maintenance, no mitigation is needed as it does not affect the overall drainage of the site. · Item XIII.B: Rain gardens were designed to be retrofitted into existing areas containing area inlets from the original Bucking Horse Filing Two – Tract C design parking lot. During construction, slight discrepancies were discovered between the original topo of the existing parking lot and during construction elevations. Actual area to construct was also limited by City required lighting and trees. This resulted in ~50 cubic feet deficiency from the initial design required volume to be treated in the rain gardens (see attached as-built Rain Garden worksheet). However, this will not be a problem as the rain gardens will still have the capacity to treat well over the City required 50% of the new impervious area (~11,100 sf). Contractor has also observed rain gardens efficiently functioning during several high intensity rainfalls in the past few weeks. · Item XIII.D: A missing clean out cover was noted on site visit. Contractor has stated that the item is on back-order and will be installed when delivered. · Item XV: Inlet protection was still in place during site visit. Please feel free to contact me with any questions you may have. Northern Engineering Services, Inc. Benjamin Ruch, PE Project Engineer Appendix A Overall Site and Drainage Certification Form Appendix B During Construction Inspection Checklist 1/19 Page 1 of 2 DURING CONSTRUCTION INSPECTION CHECKLIST To be completed by Construction Superintendent This checklist is to be completed during construction and included with the Overall Site and Drainage Certification. • Use “Yes” for items completed as described. • Use “N/A” for items that are not applicable to the site being certified. • If any blanks are “No,” attach an explanation referencing the item number below. Project Name: Sunshine House at Bucking Horse Date: 6/2/20 Building Permit Numbers: B1905428 I. Compaction A. All berms and embankments meet the compaction requirements as specified in the project geotechnical report or comply with the City’s standard, which is “soils should be compacted within a moisture content range of 2% below to 2% above optimum moisture content and compacted to 95% of the Maximum Standard Proctor Density (ASTM D698).” Compaction requires verification during construction. Provide testing log from contractor/engineer. II. Storm Drain Pipe Installation Requirements A. The pipe trenches have been compacted in accordance with Section 02225-3.07.A.1. of the Fort Collins Development Construction Standards for Water, Wastewater, Stormwater (e.g., the trenches in the roadways are to be 95% of maximum density and all other areas are to be at 90%, both in accordance with ASTM D698). III. Energy Dissipation and Erosion Protection - FCSCM Chapter 9, Section 7.0 A. Riprap 1. The riprap bedding is a granular bedding of the gradation and thickness indicated on the approved construction plans. 2. A filter fabric was installed instead of granular bedding and is the material shown on the approved construction plans or was an approved equal. Provide documentation for an approved equal. 3. The riprap is the gradation shown on the approved construction plans with a D50 of . 4. The riprap thickness is as shown on the approved construction plans and extends to the horizontal limits shown. 5. The riprap is buried to the depth indicated on the approved construction plans. (A minimum of 6 inches of soil is required.) B. Permanent Erosion Control Fabric - FCSCM Vol.1, Ch.7 1. All fabric was installed per manufacturer’s specifications. 1/19 Page 2 of 2 IV. Other Permanent BMPs A. All cut-off walls have been installed in accordance with the approved construction plans. (Cut-off walls are required for irrigation ditch crossings of storm drain pipes.) V. Extended Detention Basins A. Installation of this facility was verified via inspection by a City-Stormwater Inspector at the point of installation of the water quality control box(es). Provide date of inspection and name of inspector: Included certification sheet(s): Please check the appropriate box(es) for the Low Impact Development (LID) facilities found on this site and complete the corresponding certification sheets. ☐ Permeable Interlocking Concrete Pavers ☒ Bioretention Cells (Rain Gardens) ☐ Sand Filters ☐ Vegetated Buffers ☐ Underground Infiltration ☐ Other LID – For certification of Dry Wells, Tree Filters, Constructed Wetland Channels & Ponds, etc., contact City Staff to determine requirements to exhibit the LID facility has been constructed and functions as intended per the approved drainage report. *Please provide photographic documentation of the installation of all stages of all LID facilities. **Please contact the City Stormwater Inspector at stormwaterinspection@fcgov.com to discuss inspection requirements for each LID facility and request inspections. ***All facilities being certified must be “clean” – free of sediment & construction debris – prior to certification or acceptance of the facility. Completed by: Name: Mike Campana Title: Project Manager Email: mdcampana@gmail.com Phone: 970-690-3391 Company: Bellisimo, Inc Address: 3702 Manhattan Ave Fort Collins, CO 1/19 Page 1 of 2 Permeable Interlocking Concrete Pavers Item/Activity Yes No N/A Submittal Requirements Submitted?/Response Stormwater Inspection Pre-construction meeting was held with City-Stormwater Inspector to discuss installation, inspection, checklist, and protection from sedimentation ☐ ☐ ☐ Record date, inspector name, meeting location (i.e. DCP, initial erosion control inspection, etc.) Sub-surface inspection(s): Installation of this facility was verified via inspection by a City-Stormwater Inspector at the point of installation of the outlet, underdrain, geomembrane layer, and sub-base courses (per design in Final Plan Documents) ☐ ☐ ☐ Record date(s) of inspection and inspector’s name Surface inspection(s): Installation of this facility was verified via inspection by a City-Stormwater Inspector at the point of installation of the pavers and joint fill material ☐ ☐ ☐ Record date(s) of inspection and inspector’s name Excavation Heavy equipment did not encroach into the excavated area (prevents over-compaction) ☐ ☐ ☐ Bottom of cell was “ripped” after excavation ☐ ☐ ☐ Provide photographs before and after “ripping” Bottom surface of cell is flat and level ☐ ☐ ☐ Provide photograph Impermeable Liner Impermeable liner meets design specifications ☐ ☐ ☐ Provide specifications of delivered material Impermeable liner is attached to concrete perimeter wall ☐ ☐ ☐ Provide photograph Impermeable liner is buried with no exposure ☐ ☐ ☐ Any penetrations of the impermeable liner have been sealed and checked for water-tightness ☐ ☐ ☐ Provide photograph (if necessary) Edge Restraint and Concrete Cut-Off Wall The required edge restraint meets design specifications ☐ ☐ ☐ Provide specification of installation Concrete cut-off wall meets design specifications for: ☐ ☐ ☐ Provide specification of installation - Dimensions ☐ ☐ ☐ - Reinforcement ☐ ☐ ☐ - Footings ☐ ☐ ☐ Underdrain System Underdrain pipe meets design specifications ☐ ☐ ☐ Provide photograph At least one cleanout is provided per underdrain lateral ☐ ☐ ☐ Provide photograph 1/19 Page 2 of 2 Cleanout pipe is solid (not perforated/slotted) ☐ ☐ ☐ Provide photograph Cleanout covers are installed and watertight ☐ ☐ ☐ Provide photograph Verify the underdrain is NOT wrapped in geotextile fabric ☐ ☐ ☐ Provide photograph Verify there is no orifice plate on the underdrain outfall ☐ ☐ ☐ Provide photograph Underdrain integrity tested after backfilling using TV and/or water test ☐ ☐ ☐ Provide documentation of test results Aggregate Sub-base Course(e.g., #2/4): - Has 90% fractured faces - Is thoroughly washed (virtually free of fine sediment) - Is installed to the required design depth ☐ ☐ ☐ Provide load ticket, photographs, and record depth installed Basecourse (e.g., #57): - Has 90% fractured faces - Is thoroughly washed (virtually free of fine sediment) - Is installed to the required design depth ☐ ☐ ☐ Provide load ticket, photographs, and record depth installed Leveling Course / Joint Fill (e.g., crushed #89): - Has 90% fractured faces - Is thoroughly washed (virtually free of fine sediment) - Is dry screened - Is installed to the required design depth and to the top of the paver joints ☐ ☐ ☐ Provide load ticket, photographs, and record depth installed Aggregate materials are installed and compacted according to manufacturer’s and/or design specifications ☐ ☐ ☐ Provide photographs and documentation of compaction Protection During Construction PICP area is protected from construction site sediment, including runoff from the upstream catchment and construction equipment traffic ☐ ☐ ☐ Specify how the area was covered and/or otherwise protected to prevent construction runoff from entering the pavement Close Out Cracked/broken paver units have been removed and replaced ☐ ☐ ☐ Paver height offsets are no more than 1/4” between adjacent units & surface contains no deformations (depressions/settlement) exceeding 1/2" ☐ ☐ ☐ Upstream catchment is stabilized prior to diverting runoff into PICP system ☐ ☐ ☐ 1/19 Page 1 of 3 Bioretention Cells (Rain Gardens) Item/Activity Yes No N/A Submittal Requirements Submitted?/Response Stormwater Inspection Pre-construction meeting was held with City-Stormwater Inspector to discuss installation, inspection, checklist, and protection from sedimentation ☒ ☐ ☐ Record date, inspector name, meeting location (i.e. DCP, initial erosion control inspection, etc.) Chandler, Wes, Bellisimo, Martin and Sons met onsite 5/22/20 Underdrain and basecourse inspection(s): Installation of this facility was verified via inspection by a City-Stormwater Inspector at the point of installation of the outlet, underdrain, geomembrane layer, and base course (per design in Final Plan Documents) ☒ ☐ ☐ Record date(s) of inspection and inspector’s name 5/29/20, Chandler Pea gravel and BSM inspection(s): Installation of this facility was verified via inspection by a City-Stormwater Inspector at the point of installation of the pea gravel and bioretention sand media ☒ ☐ ☐ Record date(s) of inspection and inspector’s name Pea Gravel 5/29/20, Chandler and BSM 6/2/20 Chandler Excavation Heavy equipment did not encroach into the excavated area (prevents over-compaction) ☒ ☐ ☐ Bottom of cell was “ripped” after excavation ☒ ☐ ☐ Provide photographs before and after “ripping” Bottom surface of cell is flat and level ☒ ☐ ☐ Provide photograph Excavated area is protected/surrounded by sediment/runoff control measures during construction ☐ ☐ ☒ Provide photograph Intake Upstream catchment drains to inlet/bioretention cell per plan and flows are fully captured ☒ ☐ ☐ Forebay Forebay is installed according to design specifications ☐ ☐ ☒ Provide photograph There is a minimum 3” drop at the forebay entrance ☐ ☐ ☒ Provide photograph Forebay will drain fully and not hold standing water ☐ ☐ ☒ Outlet Structure/Overflow Emergency overflow elevation is confirmed ☒ ☐ ☐ Measure and record distance from overflow to top of media filter; provide photograph 12” Overflow inlet elevation is set above bioretention media per plan ☒ ☐ ☐ Provide photograph 12” 1/19 Page 2 of 3 Overflow inlet invert elevation is at least 3 inches below containment wall/berm (to direct overflow into inlet) ☒ ☐ ☐ Measure and record distance between inlet and top of containment wall/berm; provide photograph See as-Built shots Overflow path and check dams, if used, are armored to protect from erosion and maintain elevations ☐ ☐ ☒ Provide photograph Impermeable Liner Impermeable liner meets design specifications ☐ ☐ ☒ Provide specifications of delivered material Per discussions and email with Wes and Norhtern the liner was not installed or needed. Impermeable liner is appropriately anchored ☐ ☐ ☒ Provide photograph Impermeable liner is buried with no exposure ☐ ☐ ☒ Any penetrations of the impermeable liner have been sealed and checked for water-tightness ☐ ☐ ☒ Provide photograph (if necessary) Underdrain System Underdrain pipe meets design specifications ☒ ☐ ☐ Provide photograph At least one cleanout is provided per underdrain lateral ☒ ☐ ☐ Provide photograph Cleanout pipe is solid (not perforated/slotted) ☒ ☐ ☐ Provide photograph Cleanout covers are installed and watertight ☒ ☐ ☐ Provide photograph Verify the underdrain is NOT wrapped in geotextile fabric ☒ ☐ ☐ Provide photograph Verify there is no orifice plate on the underdrain outfall ☒ ☐ ☒ Provide photograph Underdrain integrity tested after backfilling using TV and/or water test ☐ ☒ ☐ Provide documentation of test results Filter Media and Aggregate Reservoir aggregate layer (ASTM #57 or #67): - meets design specifications - is installed to the required design depth ☒ ☐ ☐ Provide load ticket, photographs, and record depth installed 8” Diaphragm aggregate layer (“Pea Gravel” with gradation ASTM #8, #89, or #9): - meets design specifications - is installed to the required design depth ☒ ☐ ☐ Provide load ticket, photographs, and record depth installed 4” Bioretention Sand Media (BSM) composition: - meets design specifications - is installed to the required design depth ☒ ☐ ☐ Provide load ticket, photographs, and record depth installed 18” BSM was “machine mixed” by supplier prior to delivery ☒ ☐ ☐ Provide load ticket BSM is installed flat and level ☒ ☐ ☐ Provide photograph Other Structural Components Containment wall/berm is continuous and level ☒ ☐ ☐ 1/19 Page 3 of 3 Landscaping Verify final landscaping is free of sod ☒ ☐ ☒ If sod is used, it must be shown to be “sand-grown” No sod per plan Final landscaping (non-floatable mulch) is flat and level ☒ ☐ ☐ Provide photograph Rock cobble at perimeter on slopes only not in the BSM Vegetation is planted according to landscape design specifications and final landscaping plan ☒ ☐ ☐ Provide photograph Verify that weed barrier is NOT installed ☒ ☐ ☐ Only on side slope under rock cobble Temporary irrigation installed ☐ ☐ ☒ If N/A, then verify that permanent irrigation is installed to establish/maintain vegetation Close Out Upstream catchment stabilized prior to diverting runoff into bioretention cell ☐ ☐ ☒ 1/19 Page 1 of 1 Vegetated Buffers Item/Activity Yes No N/A Submittal Requirements Submitted?/Response Construction Buffer area was sectioned off to eliminate site disturbance and compaction during construction ☐ ☐ ☒ Provide photograph(s) Level spreader has been installed per plan (if applicable) ☐ ☐ ☒ Provide photograph Soils in the buffer area have been amended ☐ ☐ ☒ Record soil amendment certification with Environmental & Regulatory Affairs Vegetation is planted according to landscape design specifications and final landscaping plan ☐ ☐ ☒ Provide photograph 1/19 Page 1 of 3 Sand Filters Item/Activity Yes No N/A Submittal Requirements Submitted?/Response Stormwater Inspection Pre-construction meeting was held with City-Stormwater Inspector to discuss installation, inspection, checklist, and protection from sedimentation ☐ ☐ ☐ Record date, inspector name, meeting location (i.e. DCP, initial erosion control inspection, etc.) Underdrain and basecourse inspection(s): Installation of this facility was verified via inspection by a City-Stormwater Inspector at the point of installation of the outlet, underdrain, geomembrane layer, and base course (per design in Final Plan Documents) ☐ ☐ ☐ Record date(s) of inspection and inspector’s name Pea gravel and filter media inspection(s): Installation of this facility was verified via inspection by a City-Stormwater Inspector at the point of installation of the pea gravel and filter media ☐ ☐ ☐ Record date(s) of inspection and inspector’s name Excavation Heavy equipment did not encroach into the excavated area (prevents over-compaction) ☐ ☐ ☐ Bottom of cell was “ripped” after excavation ☐ ☐ ☐ Provide photographs before and after “ripping” Bottom surface of cell is flat and level ☐ ☐ ☐ Provide photograph Excavated area is protected/surrounded by sediment/runoff control measures during construction ☐ ☐ ☐ Provide photograph Intake Upstream catchment drains to inlet/sand filter per plan and flows are fully captured ☐ ☐ ☐ Forebay (If Applicable) Forebay is installed according to design specifications ☐ ☐ ☐ Provide photograph There is a minimum 3” drop at the forebay entrance ☐ ☐ ☐ Provide photograph Forebay will drain fully and not hold standing water ☐ ☐ ☐ Outlet Structure/Overflow Overflow inlet elevation is set above sand filter media per plan (typically 1 to 3 feet) ☐ ☐ ☐ Provide photograph Overflow inlet invert elevation is at least 3 inches below containment wall/berm (to direct overflow into inlet) ☐ ☐ ☐ Measure and record distance between inlet and top of containment wall/berm; provide photograph 1/19 Page 2 of 3 Overflow path and check dams, if used, are armored to protect from erosion and maintain elevations ☐ ☐ ☐ Provide photograph Impermeable Liner (If Applicable) Impermeable liner meets design specifications ☐ ☐ ☐ Provide specifications of delivered material Impermeable liner is appropriately anchored to the perimeter wall ☐ ☐ ☐ Provide photograph Impermeable liner is buried with no exposure ☐ ☐ ☐ Any penetrations of the impermeable liner have been sealed and checked for water-tightness ☐ ☐ ☐ Provide photograph (if necessary) Underdrain System Underdrain pipe meets design specifications ☐ ☐ ☐ Provide photograph At least one cleanout is provided per underdrain lateral ☐ ☐ ☐ Provide photograph Cleanout pipe is solid (not perforated/slotted) ☐ ☐ ☐ Provide photograph Cleanout covers are installed and watertight ☐ ☐ ☐ Provide photograph Verify the underdrain is NOT wrapped in geotextile fabric ☐ ☐ ☐ Provide photograph Verify there is no orifice plate on the underdrain outfall ☐ ☐ ☐ Provide photograph Underdrain integrity tested after backfilling using TV and/or water test ☐ ☐ ☐ Provide documentation of test results Filter Media Filter media composition (e.g. ASTM C 33 Sand): - meets design specifications - is installed to the required design depth ☐ ☐ ☐ Provide load ticket, photographs, and record depth installed Pea gravel layer: - meets design specifications - is installed to the required design depth ☐ ☐ ☐ Provide load ticket, photographs, and record depth installed Filter Media is installed flat and level ☐ ☐ ☐ Other Structural Components Containment wall/berm is continuous and level ☐ ☐ ☐ Landscaping Verify final landscaping is free of sod ☐ ☐ ☐ If sod is used, it must be shown to be “sand-grown” Final landscaping (non-floatable mulch) is flat and level ☐ ☐ ☐ Provide photograph Vegetation is planted according to landscape design specifications and final landscaping plan ☐ ☐ ☐ Provide photograph Verify that weed barrier is NOT installed ☐ ☐ ☐ 1/19 Page 3 of 3 Temporary irrigation installed ☐ ☐ ☐ If N/A, then verify that permanent irrigation is installed to establish/maintain vegetation Close Out Upstream catchment stabilized prior to diverting runoff into sand filter cell ☐ ☐ ☐ 1/19 Page 1 of 2 Underground Infiltration Item/Activity Yes No N/A Submittal Requirements Submitted?/Response Stormwater Inspection Manufacturer’s representative pre-construction meeting: A pre-construction meeting was completed with the manufacturer’s representative and installers ☐ ☐ ☐ Record date and who was present at the meeting Pre-construction meeting was held with City-Stormwater Inspector to discuss installation, inspection, checklist, and protection from sedimentation ☐ ☐ ☐ Record date, inspector name, meeting location (i.e. DCP, initial erosion control inspection, etc.) Inspection(s): Installation of this facility was verified via inspection by a City-Stormwater Inspector at the point at which the chambers had been laid/prior to backfilling. Correct fabric placement was confirmed. ☐ ☐ ☐ Record date(s) of inspection and inspector’s name Excavation Heavy equipment did not travel across underground cell area during excavation (prevents over-compaction) ☐ ☐ ☐ Bottom of cell was “ripped” after excavation ☐ ☐ ☐ Provide photographs before and after “ripping” Bottom of cell is flat and level, or graded per approved grading plans ☐ ☐ ☐ Provide photograph Non-woven fabric is installed per manufacturer’s specifications and was not damaged during construction (around system) ☐ ☐ ☐ Provide photograph Woven fabric is installed per manufacturer’s specifications and was not damaged during construction (beneath chambers) ☐ ☐ ☐ Provide photograph Excavated area is protected/surrounded by sediment/runoff control BMPs during construction ☐ ☐ ☐ Provide photograph Impermeable Liner Impermeable liner meets design specifications ☐ ☐ ☐ Provide specifications of delivered material Impermeable liner is not exposed ☐ ☐ ☐ Any penetrations of the impermeable liner have been sealed and checked for water-tightness. ☐ ☐ ☐ Provide photograph (if necessary) Aggregate Foundation and embedment materials are installed and compacted according to design and manufacturer’s specifications ☐ ☐ ☐ Provide load ticket and photograph(s) Underdrain System 1/19 Page 2 of 2 Underdrain pipe meets design specifications ☐ ☐ ☐ Provide photograph At least one cleanout is provided per underdrain lateral ☐ ☐ ☐ Provide photograph Cleanout pipe is solid (not perforated/slotted) ☐ ☐ ☐ Provide photograph Cleanout covers are installed and watertight ☐ ☐ ☐ Provide photograph Verify the underdrain is NOT wrapped in geotextile fabric ☐ ☐ ☐ Provide photograph Verify there is no orifice plate on the underdrain outfall ☐ ☐ ☐ Provide photograph Underdrain integrity tested after backfilling using TV and/or water test ☐ ☐ ☐ Provide documentation of test results Manifold system Overflow weir elevation is set at/above water quality storm elevation ☐ ☐ ☐ Record weir elevation on survey Maintenance access is provided for each Isolator Row ☐ ☐ ☐ At least one inspection port has been provided for each Isolator Row (located in middle third of each row) ☐ ☐ ☐ Upstream catchment drains to inlet/intake properly ☐ ☐ ☐ Underground Detention Chambers All chambers were installed per approved Utility Plans and manufacturer’s specifications ☐ ☐ ☐ Photograph Close Out Upstream catchment is stabilized prior to diverting runoff into Underground Detention system ☐ ☐ ☐ All Isolator Rows, chambers, and pipes are cleaned and sediment/debris has been removed ☐ ☐ ☐ B Rain Garden at end of parking lot Dirt Sub-grade: 87.24 Reservoir Agg FG: 87.68 Diaphragm Agg FG: 88.01 T 6" perforated for under drain only clean-out risers are non-perforated T BSM B B B B B B Elevation of dirt sub grade bottom of Rain Garden: 87.24 B A B B A 12" from FG of overflow inlet to top of BSM 30" Profile for: 18" of BSM 4" of Diaphragm aggregate 8" of reservoir aggregate B B B B Typical Non-perforated Clean-out riser B B B B B Top of reservoir aggregate layer 8" Elevation: 87.68 B Top of Diaphragm aggregate @88.01 leaving 18" for BSM B B B B Top of Diaphragm aggregate layer 4" Elevation: 88.01 B Top of BSM FG Larrrrr,r ioutrty Ta> 5i2ltt212() I l 4() AM Sales Recuipt #199251) itore t Tt Uzk lO HAGEMAN EARTH CYCLE 3501 East ProsPect Road Fort Collrns, CO 80525 9/0''/t1 7113 wwlv ha gernanearthcYcle cLrtn Bill To: Marlin & Sons Martltr & Sons 8808 Weld Courlty Rd ''l Be(lloLtd CO 80513 (lashrer CaseY DclCIl[,tlt)rl I Qty F'ttce Lx1 Prtce BSlr/l ilettrrrltorr t'c 14 64 S.-lir OO 511 2 40 T 6SM Reterttrorl F'c 14 14 S35 00 'i4!4 !)0 I Srrl.rtotal $1 007 30 3/%Tax +SaJl27 rssrrrJ .1!ll eetrent (rllelchant agleelrlellt lf credit voucher) Thank yoll for Yout htlsltressl COMF'ANIONS Wl I H I'JAI URE Vehicle MNSOIO - MARTIN & SONS Carrier Trailer I llllll lllll illtt llltt lllll lllll lllll lllll lllll lllll lllll lill llll 16310 Taft Sand & Gravel 1801 North l.aft Hill Road Fort Collins, CO 80521 Ticket 32005635 Dafc DEL/PU Disoatch Scale 512912020 P 1 Time Due Time ln Ttme OC! 1 3:33 Silo # 000 0:00 Customer No Order No 639986 6001 3614 Product oo38 - SSTONE Snippea foAaY Job To Datt 1 LDS (14.14 Ton) 180"14 Ton Ship To Dest lD lnstruct 639986 - MARTIN & SONS EXCAVATING AGG VARIOUS 1 8868 WELD CO ROAD 3 . 2482 MILEHOUSE AVE fi .i,' t- -- a 7 t -.nl ,r;:;,w" / /i,;) io' ufl;e liul/4L vartin tt'tanetta Standard Terms and Conditions apply (copy avai!abie at Site Office) Rain Garden nearest Miles House Ave A Dirt Sub-grade: 87.87 Reservoir Agg FG: 88.42 Diaphragm Agg FG: 88.75 6" perforated for under drain only clean-out risers are non-perforated T BSM T A A A A A A A 12" from FG of overflow inlet to top of BSM 30" Profile for: 18" of BSM 4" of Diaphragm aggregate 8" of reservoir aggregate A Elevation of dirt sub grade bottom of Rain Garden: 87.87 A Elevation of dirt sub grade bottom of Rain Garden: 87.87 A A A A A A A A Typical Non-perforated Clean-out riser A A A A A A A A A Top of reservoir aggregate layer 8" Elevation: 88.42 A A A A Top of Diaphragm aggregate @88.75 leaving 18" for BSM A Top of BSM FG A Larrrrr,r ioutrty Ta> 5i2ltt212() I l 4() AM Sales Recuipt #199251) itore t Tt Uzk lO HAGEMAN EARTH CYCLE 3501 East ProsPect Road Fort Collrns, CO 80525 9/0''/t1 7113 wwlv ha gernanearthcYcle cLrtn Bill To: Marlin & Sons Martltr & Sons 8808 Weld Courlty Rd ''l Be(lloLtd CO 80513 (lashrer CaseY DclCIl[,tlt)rl I Qty F'ttce Lx1 Prtce BSlr/l ilettrrrltorr t'c 14 64 S.-lir OO 511 2 40 T 6SM Reterttrorl F'c 14 14 S35 00 'i4!4 !)0 I Srrl.rtotal $1 007 30 3/%Tax +SaJl27 rssrrrJ .1!ll eetrent (rllelchant agleelrlellt lf credit voucher) Thank yoll for Yout htlsltressl COMF'ANIONS Wl I H I'JAI URE Vehicle MNSOIO - MARTIN & SONS Carrier Trailer I llllll lllll illtt llltt lllll lllll lllll lllll lllll lllll lllll lill llll 16310 Taft Sand & Gravel 1801 North l.aft Hill Road Fort Collins, CO 80521 Ticket 32005635 Dafc DEL/PU Disoatch Scale 512912020 P 1 Time Due Time ln Ttme OC! 1 3:33 Silo # 000 0:00 Customer No Order No 639986 6001 3614 Product oo38 - SSTONE Snippea foAaY Job To Datt 1 LDS (14.14 Ton) 180"14 Ton Ship To Dest lD lnstruct 639986 - MARTIN & SONS EXCAVATING AGG VARIOUS 1 8868 WELD CO ROAD 3 . 2482 MILEHOUSE AVE fi .i,' t- -- a 7 t -.nl ,r;:;,w" / /i,;) io' ufl;e liul/4L vartin tt'tanetta Standard Terms and Conditions apply (copy avai!abie at Site Office) Appendix C As-Constructed Rain Garden Work Sheet Sheet 1 of 2 Designer: Company: Date: Project: Location: 1. Basin Storage Volume A) Effective Imperviousness of Tributary Area, Ia Ia =100.0 % (100% if all paved and roofed areas upstream of rain garden) B) Tributary Area's Imperviousness Ratio (i = Ia/100)i = 1.000 C) Water Quality Capture Volume (WQCV) for a 12-hour Drain Time WQCV = 0.40 watershed inches (WQCV= 0.8 * (0.91* i3 - 1.19 * i2 + 0.78 * i) D) Contributing Watershed Area (including rain garden area) Area = 17,014 sq ft E) Water Quality Capture Volume (WQCV) Design Volume VWQCV =567 cu ft Vol = (WQCV / 12) * Area F) For Watersheds Outside of the Denver Region, Depth of d6 = in Average Runoff Producing Storm G) For Watersheds Outside of the Denver Region, VWQCV OTHER =cu ft Water Quality Capture Volume (WQCV) Design Volume H) User Input of Water Quality Capture Volume (WQCV) Design Volume VWQCV USER =cu ft (Only if a different WQCV Design Volume is desired) 2. Basin Geometry A) WQCV Depth (12-inch maximum)DWQCV =12 in B) Rain Garden Side Slopes (Z = 4 min., horiz. dist per unit vertical) Z = 4.00 ft / ft (Use "0" if rain garden has vertical walls) C) Mimimum Flat Surface Area AMin =340 sq ft D) Actual Flat Surface Area AActual =363 sq ft E) Area at Design Depth (Top Surface Area)ATop =670 sq ft F) Rain Garden Total Volume VT=517 cu ft TOTAL VOLUME < DESIGN VOLUME (VT= ((ATop + AActual) / 2) * Depth) 3. Growing Media 4. Underdrain System A) Are underdrains provided? B) Underdrain system orifice diameter for 12 hour drain time i) Distance From Lowest Elevation of the Storage y =ft Volume to the Center of the Orifice ii) Volume to Drain in 12 Hours Vol12 =N/A cu ft iii) Orifice Diameter, 3/8" Minimum DO =N/A in Design Procedure Form: Rain Garden (RG) B. Ruch Northern Engineering June 17, 2020 Bucking Horse Sunshine House (Bucking Horse Filing 2 Major Amendment) Fort Collins, CO UD-BMP (Version 3.06, November 2016) Choose One Choose One 18" Rain Garden Growing Media Other (Explain): YES NO AB_UD-BMP_v3.06_RG WQVol.xlsm, RG 6/17/2020, 3:18 PM Sheet 2 of 2 Designer: Company: Date: Project: Location: 5. Impermeable Geomembrane Liner and Geotextile Separator Fabric A) Is an impermeable liner provided due to proximity of structures or groundwater contamination? 6. Inlet / Outlet Control A) Inlet Control 7. Vegetation 8. Irrigation NO SPRINKLER HEADS ON FLAT SURFACE A) Will the rain garden be irrigated? Notes: Design Procedure Form: Rain Garden (RG) B. Ruch Northern Engineering June 17, 2020 Bucking Horse Sunshine House (Bucking Horse Filing 2 Major Amendment) Fort Collins, CO Choose One Choose One Choose One Sheet Flow- No Energy Dissipation Required Concentrated Flow- Energy Dissipation Provided Plantings Seed (Plan for frequent weed control) Sand Grown or Other High Infiltration Sod Choose One YES NO YES NO AB_UD-BMP_v3.06_RG WQVol.xlsm, RG 6/17/2020, 3:18 PM Appendix D Record Drawings FW S UD FDC E E E E F W / / / / / / /////////////////////////////////////////////// UD UD UD DS DS DS DS DS DS DS DS DSDS DS DS DS DS DS CO CO S S W W W W W W W W W W W W W W W W W W W W W W SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS CO COS SS S HY D IR R S X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X MILES HOUSE AVENUE TRACT B FUTURE CITY PARK TRACT C 9' UTILITY EASEMENT EXISTING 5' SIDEWALK 24' EMERGENCY ACCESS EASEMENT 9' UTILITY EASEMENT PROPOSED 4.5' SIDEWALK PR O P O S E D 5 . 5 ' SI D E W A L K EX I S T I N G 5 0 ' F L - F L AD BASIN 4.1 INV. OUT=4888.01 (NW) FG=4892.92 AD BASIN 9 INV.=4889.15 FG=4892.05 AD BASIN 5 INV.=4888.35 FG=4891.97 AD 45° BEND 8 INV.=4888.67 FG=4892.21 AD 45° BEND 6 INV.=4888.54 FG=4892.71 AD BASIN 7 INV.=4888.65 FG=4891.80 EX INLET A3 INV. IN=4885.88 (SW) INV. IN=4887.88 (NW) INV. IN=4887.88 (SE) INV. OUT=4885.88 (NE) EX. GRATE=4890.91 PROP. GRATE=4891.22 EX INLET A1 INV. IN=4885.26 (SW) INV. OUT=4885.26 (NE) GRATE=4890.61 EX INLET A2 INV. IN=4885.37 (SW) INV. IN=4887.35 (SE) INV. IN=4887.35 (NW) INV. OUT=4885.37 (NE) EX. GRATE=4890.40 PROP. GRATE=4890.68 AD TEE 4 INV.=4887.93 FG=4892.54 INSERTA TEE CONNECTION INV. IN=4885.17 (SW) INV. IN=4887.17 (SE) INV. OUT=4885.17 (NE) FG=4891.34 AD 45° BEND 1 INV.=4887.55 FG=4892.98 EX FES A INV. IN=4884.65 (SW) 12 7 . 0 2 L F EX . 3 6 " R C P @ 0 . 4 1 % 30 . 4 7 L F EX . 3 6 " R C P @ 0 . 3 6 % 10 8 . 6 3 L F EX . 3 6 " R C P @ 0 . 4 7 % 68 . 6 4 L F EX . 3 6 " R C P @ 0 . 3 8 % 23.17 LF EX. 36" RCP @ 0.41% 77.66 LF 12" HDPE @ 0.50% 10.11 LF 12" HDPE @ 0.50% 15.64 LF 8" HDPE @ 0.50% 84.20 LF 8" HDPE @ 0.50% 37.53 LF 8" HDPE @ 0.50% 23.13 LF 8" HDPE @ 0.50% 4.11 LF 8" HDPE @ 0.50% 47.75 LF 8" HDPE @ 1.00% 2. 0 % 2. 0 % 2. 0 % 2.0% 2.0% 6:1 4:1 4: 1 4: 1 4:1 4:1 2. 0 % 2.0 % 1. 9 % 25. 0 % 6.7 % 4.3% 0.9% 1.2% 2. 5 % 2.0% WET TAP EXISTING 8"x6" TEE w/ TB & 6" GV (NE) N:15915.78 E:13480.17 15.29 LF 6" PERF. HDPE @ 0.50% RG BASIN 1A INV. OUT=4887.42 (SE) RIM=4890.68 9.47 LF 6" HDPE @ 0.50% RG BASIN 1B INV. OUT=4887.40 (NW) RIM=4890.68 11.68 LF 6" HDPE @ 0.50% RG BASIN 2A INV. OUT=4887.94 (SE) RIM=4891.22 14.37 LF 6" HDPE @ 0.50% RG BASIN 2B INV. OUT=4887.96 (NW) RIM=4891.22 TRACT D NATIVE UPLAND HABITAT AREA/ EXISTING DETENTION POND 215 1.0%1.0% POND 215 100-YR WSEL = 4888.5 5.0% 3.0% 2.0% 2.0% 2. 0 % 2.0% 2.0% 2.0% 24' EMERGENCY ACCESS EASEMENT 2.0% 2.0%2.0%2.0% 2.0% 5. 0 % 5. 0 % 4.0 % 3.5% 2.0% 2.0% 2.0% 17.95 LF 12" HDPE @ 0.50% AD BASIN 2 INV.=4887.64 FG=4891.19 45.34 LF 8" HDPE @ 0.50% AD 45° BEND 3.3 INV.=4888.16 FG=4892.20 AD 45° BEND 3.4 INV.=4888.18 FG=4892.30 42.42 LF 8" HDPE @ 0.50% AD BASIN 3.6 INV.=4888.55 FG=4891.97 43.96 LF 8" HDPE @ 0.50% AD TEE 3.7 INV.=4888.77 FG=4892.82 5.13 LF 8" HDPE @ 2.00% AD BASIN 3.7-1 INV.=4888.88 FG=4891.97 3.69 LF 8" HDPE @ 0.50% AD 90° BEND 3.9 INV.=4888.93 FG=4892.84 AD BASIN 3.10 INV.=4889.01 FG=4891.97 46.93 LF 8" HDPE @ 0.50% AD TEE 3 INV.=4887.69 FG=4892.10 5.00 LF 8" HDPE @ 0.50% 3.99 LF 8" HDPE @ 2.00% 2. 0 % 2. 0 % 21.17 LF 8" HDPE @ 0.50% AD BASIN 3.1 INV.=4887.80 FG=4891.97 10.16 LF 4" HDPE @ 2.00% 36.63 LF 3" PERF. HDPE @ 1.00% AD BASIN 3.1-1 INV.=4888.00 FG=4892.57 AD BASIN 3.1-2 INV.=4890.87 FG=4892.37 AD BASIN 3.2-2 INV.=4890.98 FG=4892.48 17.99 LF 3" PERF. HDPE @ 1.00% AD TEE 3.2 INV.=4888.03 FG=4893.04 26.46 LF 8" HDPE @ 0.50% 21.48 LF 4" HDPE @ 2.00% AD BASIN 3.2-1 INV.=4888.46 FG=4892.52 AD BASIN 3.5-2 INV.=4890.11 FG=4891.61 21.19 LF 3" PERF. HDPE @ 1.00%AD CONTINUE INV.=4889.90 FG=4891.47 13.94 LF 3" PERF. HDPE @ 1.00% AD BASIN 3.5-1 INV.=4889.45 FG=4891.60 52.41 LF 4" HDPE @ 2.00% AD TEE 3.5 INV.=4888.40 FG=4893.00 36.85 LF 4" HDPE @ 2.00%AD BASIN 3.6-1 INV.=4889.29 FG=4891.85 AD BASIN 3.6-2 INV.=4890.52 FG=4892.25 17.32 LF 3" PERF. HDPE @ 1.00% AD BASIN 3.8-2 INV.=4890.40 FG=4891.90 47.27 LF 3" PERF. HDPE @ 1.00% AD BASIN 3.8-1 INV.=4888.29 FG=4891.78 AD TEE 3.8 INV.=4888.79 FG=4892.88 49.69 LF 4" HDPE @ 2.00% 27.78 LF 8" HDPE @ 0.50% 45° BEND w/ TB N:15942.32 E:13509.70 APPROXIMATE LOCATION EXISTING TRANSFORMER EXISTING FLUSH CURB PROPOSED SAWCUT EXISTING 18" VERTICAL CURB & GUTTER EXISTING CONCRETE PARKING LOT PROPOSED TRASH ENCLOSURE PROPOSED 18" OUTFALL VERTICAL CURB & GUTTER PROPOSED FENCE MATCH EXISTING CURB & GUTTER EXISTING ACCESS RAMPS EXISTING DRIVEWAY PROPOSED CONCRETE PAVING PROPOSED CONCRETE PAVING EXISTING 30" VERTICAL CURB & GUTTER PROPOSED 18" OUTFALL VERTICAL CURB & GUTTER CURRENT FEMA MAPPED 500-YR FLOODPLAIN LIMITS EXISTING 15" SANITARY SEWER EXISTING 8" WATER EXISTING FH EXISTING 1.5" IRRIGATION SERVICE EXISTING 4" SANITARY SEWER EXISTING 1" WATER METER & CURB STOP EXISTING SANITARY SERVICE PROPOSED RAIN GARDEN (SEE SHEET C301 DETAIL) EXISTING INLET PROPOSED ELECTRIC PROPOSED ACCESS RAMP PROPOSED 6" FIRE SERVICE PROPOSED CONCRETE DIVIDING WALL EXTENDING TO BOTTOM OF BIOMEDIA PROPOSED ELECTRIC METER PROPOSED CONCRETE DIVIDING WALL EXTENDING TO BOTTOM OF BIOMEDIA PROPOSED RAIN GARDEN (SEE SHEET C301 DETAIL) PROPOSED 1" WATER SERVICE INSTALL CLEANOUT AND EXTEND EXISTING SANITARY SERVICE EXISTING INLET GRATE TO BE RAISED EXISTING INLET GRATE TO BE RAISED PROPOSED UTILITY EASEMENT FW S FFE=93.14 (91.77) (91 . 3 9 ) (91 . 3 9 ) (91 . 3 6 ) (9 1 . 3 8 ) (90.92) (90 . 8 3 ) (90 . 7 6 ) (90 . 9 7 ) (9 0 . 4 9 ) (9 0 . 5 6 ) (9 1 . 0 6 ) (90 . 9 2 ) (91 . 2 9 ) (91 . 7 3 ) (91 . 7 8 ) (90 . 5 3 ) 89.68 89.68 89.68 89.6 8 90 . 2 2 90.22 90.2 2 89.4 1 (88 . 2 9 ) (92 . 5 0 ) (92 . 6 5 ) (92 . 5 8 ) 91.1 6 92.4 8 93.3 7 94.4 9 94.5 3 92.1 5 90. 3 4 91.5 8 91.8 6 91.9 0 91 . 1 6 91.53 91 . 2 3 90.95 90.63 90.9 1 90.72 90.5 4 91.8 6 92.0 7 (91 . 9 3 ) 91.9 5 91.9 7 92.1 9 92.2 4 92.4 4 92.4 4 91.61 92 . 7 2 92 . 7 7 92.4 7 92.5 2 92.99 93.1 4 91.6 4 92.3 5 92.0 8 90.8 4 (87 . 9 6 ) 91.0 1 96.70 93.1 8 91.4 5 (88 . 8 2 ) (88 . 5 8 ) 93.1 4 93.1 4 93.1 4 92.47 93. 1 4 93.04 91.97 92.55 92.7 8 92.47 92.29 93.0 4 92.9 6 92 . 3 3 92.3 6 92.06 92 . 2 8 92.58 92 . 7 6 92.05 91 . 8 0 92 . 3 8 92.90 93.04 91. 0 4 90 . 8 3 91.9 7 93 . 1 4 93 . 1 4 92.12 91.78 89.2 8 90.00 92. 7 5 92 . 7 6 91.1 2 90 . 8 8 90.5 3 92.7 0 92 . 7 2 92.4 4 90.71 90 . 6 2 90.5 2 90.58 90.8 7 92.47 92 . 4 8 92 . 7 1 93.1 4 92.91 92.45 91.9 7 92.56 93.1 4 93.1 4 93.0 0 92.47 91.19 91.8 1 91.10 92 . 3 4 92.10 92. 3 4 92.64 90.44 92.5 8 92.66 92.2 5 93.0 7 92.8 9 92.2 6 93 . 1 4 92. 4 7 93. 0 6 93.06 93.06 93.0 6 93.1 4 93.0 6 92.9 9 92.0 4 91.8 3 91.8692.70 93.1 4 92 . 4 9 93.1 4 93.1 4 91.9 7 92 . 4 7 93.1 4 93.0 6 93.14 92.47 91 . 9 7 92.8 8 93.1 4 93.14 91 . 9 7 92.4 7 92 . 8 5 93 . 1 4 92 . 9 8 93 . 1 4 93.1 4 93. 0 0 92 . 1 7 92 . 4 4 (90.8 6 ) 92.4 7 93.14 93.14 93 . 1 0 92.2 4 90 . 2 2 (91 . 2 2 ) (9 0 . 6 8 ) (9 1 . 3 0 ) 91.7 6 91.69 92. 6 2 90.3 9 90.4 6 90.6 6 91 . 0 2 90.7 6 91 . 3 1 91 . 5 8 91 . 5 8 90.36 91. 5 9 90.32 90. 5 6 91. 4 9 90. 1 5 90. 2 1 91 . 6 0 90.39 92.05 92 . 6 1 93.09 92.80 92.73 92.81 93.0 3 91. 8 9 92.2 0 92 . 4 1 92 . 6 2 92.41 91.71 90.45 91.23 91.69 88.32 88. 9 2 89.67 90.07 89.0 9 93.16 93.97 95.9 5 90.97 91.9 1 91.21 88.15 92.2 8 91.7792.1 9 92.84 92.52 92.40 92. 9 8 92. 3 5 92. 7 8 93.00 93.02 92.97 92 . 5 5 92.96 92.86 92.75 92.32 91 . 9 8 93.03 93.05 92. 1 9 93.05 92.5 7 92.52 92 . 3 4 92.21 92.45 92.4 3 92.3 2 92 . 6 6 94.52 94.76 92.35 92.6 4 92.63 92 . 9 0 92.9893. 0 6 92.4 6 92.00 92. 8 2 92.57 92.85 92.60 92. 8 2 92.82 92.7892.63 92.58 91.8 5 92.26 91 . 1 7 91.39 92.35 91.98 90 . 9 5 90.94 91. 1 4 89. 6 5 91. 2 5 90. 6 7 89.76 89.5 7 91 . 0 9 91 . 6 0 90. 1 5 91.14 91.67 91.71 93.11 92.96 92.9 2 93 . 0 8 92 . 8 8 92.9 6 92.9 5 92.83 92.3292.48 92. 2 5 92.4 6 92.92 92 . 6 8 92.8 2 92.66 93.06 92.42 89.72 91.22 91.93 92 . 9 9 92.69 92.95 92. 6 4 93.0 4 92. 5 7 92. 9 4 92.72 92.98 92. 6 4 92. 2 2 92 . 0 1 92 . 0 7 92 . 2 5 92 . 1 4 91 . 1 2 91 . 2 5 91 . 1 1 90 . 8 0 90 . 8 9 90 . 8 5 90. 9 5 91.3 2 91 . 4 8 91.37 91 . 5 2 91.0 8 91.1 8 90 . 8 7 91 . 0 1 AD R I M - 3 . 5 5 I N V 91.9 8 89.74 88.67 88.64 88.83 89.60 92.13 92.62 92.64 91.18 90.01 91.21 91 . 3 6 91 . 0 4 92 . 2 8 91 . 8 7 Sheet BU C K I N G H O R S E F I L I N G T W O E N G I N E E R N G I E H T R O N R N FO R T C O L L I N S : 3 0 1 N o r t h H o w e s S t r e e t , S u i t e 1 0 0 , 8 0 5 2 1 GR E E L E Y : 8 2 0 8 t h S t r e e t , 8 0 6 3 1 97 0 . 2 2 1 . 4 1 5 8 no r t h e r n e n g i n e e r i n g . c o m of 10 C300 GR A D I N G & U T I L I T Y P L A N 5 NORTH ( IN FEET ) 1 inch = ft. Feet02020 20 40 60 NOTES: 1.THE SIZE, TYPE AND LOCATION OF ALL KNOWN UNDERGROUND UTILITIES ARE APPROXIMATE WHEN SHOWN ON THESE DRAWINGS. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO VERIFY THE EXISTENCE OF ALL UNDERGROUND UTILITIES IN THE AREA OF THE WORK. BEFORE COMMENCING NEW CONSTRUCTION, THE CONTRACTOR SHALL BE RESPONSIBLE FOR LOCATING ALL UNDERGROUND UTILITIES AND SHALL BE RESPONSIBLE FOR ALL UNKNOWN UNDERGROUND UTILITIES. 2.ALL WATER FITTINGS AND VALVES ARE ONLY GRAPHICALLY REPRESENTED AND ARE NOT TO SCALE. 3.UTILITY SERVICES ARE SHOWN IN A SCHEMATIC FASHION ONLY. EXACT LOCATIONS SHALL BE PER THE REQUIREMENTS OF THE RESPECTIVE UTILITY PROVIDERS, AND ARE SUBJECT TO CHANGE IN THE FIELD. 4.REFER TO THE PLAT FOR LOT AREAS, TRACT SIZES, EASEMENTS, LOT DIMENSIONS, UTILITY EASEMENTS, OTHER EASEMENTS, AND OTHER SURVEY INFORMATION. 5.LIMITS OF STREET CUT ARE APPROXIMATE. FINAL LIMITS ARE TO BE DETERMINED IN THE FIELD BY THE CITY ENGINEERING INSPECTOR. ALL REPAIRS TO BE IN ACCORDANCE WITH CITY STREET REPAIR STANDARDS. 6.ANY DAMAGED CURB, GUTTER AND SIDEWALK EXISTING PRIOR TO CONSTRUCTION, AS WELL AS STREETS, SIDEWALKS, CURBS AND GUTTERS, DESTROYED, DAMAGED OR REMOVED DUE TO CONSTRUCTION OF THIS PROJECT, SHALL BE REPLACED OR RESTORED TO CITY OR FORT COLLINS STANDARDS AT THE DEVELOPER'S EXPENSE PRIOR TO THE ACCEPTANCE OF COMPLETED IMPROVEMENTS AND/OR PRIOR TO THE ISSUANCE OF CERTIFICATE OF OCCUPANCY. 7.PIPE LENGTHS ARE CALCULATED FROM THE CENTER OF MANHOLES AND INLET BOX STRUCTURES. SPECIFIED LENGTH OF PIPE INCLUDES THE LAYING LENGTH OF FLARED END SECTIONS. 8.CONTRACTOR SHALL BE RESPONSIBLE FOR ANY NECESSARY FIELD LOCATES AND POTHOLING OF SUBSURFACE UTILITIES. ENGINEER AND CITY SHALL BE NOTIFIED OF ANY POTENTIAL CONFLICTS. 9.CONTRACTOR SHALL COORDINATE ANY NECESSARY TELEPHONE, CABLE, FIBER, GAS, AND ELECTRIC LOWERINGS (OR RE-ROUTING) WITH THE RESPECTIVE UTILITY PROVIDERS. 10.CONTRACTOR TO COORDINATE FINAL LOCATION OF ALL GAS AND ELECTRIC METERS WITH ARCHITECT AND UTILITY PROVIDERS. 11.ALL NEW AREA DRAIN INFRASTRUCTURE IS TO BE PRIVATELY OWNED AND MAINTAINED. 12.THE SIZE, TYPE AND LOCATION OF ALL KNOWN UNDERGROUND UTILITIES ARE APPROXIMATE WHEN SHOWN ON THESE DRAWINGS. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO VERIFY THE EXISTENCE OF ALL UNDERGROUND UTILITIES IN THE AREA OF THE WORK. BEFORE COMMENCING NEW CONSTRUCTION, THE CONTRACTOR SHALL BE RESPONSIBLE FOR LOCATING ALL UNDERGROUND UTILITIES AND SHALL BE RESPONSIBLE FOR FOR ALL UNKNOWN UNDERGROUND UTILITIES. 13.REFER TO THE PLAT FOR LOT AREAS, TRACT SIZES, EASEMENTS, LOT DIMENSIONS, UTILITY EASEMENTS, OTHER EASEMENTS, AND OTHER SURVEY INFORMATION. 14.ALL CURB SPOTS SHOWN ARE FLOWLINE ELEVATIONS. ALL OTHER SPOTS ARE FINISHED GRADE ELEVATIONS. 15.ALL PROJECT DATA IS ON THE CITY OF FORT COLLINS VERTICAL DATUM NAVD88. SEE COVER SHEET FOR BENCHMARK REFERENCES. 16.THE CONTRACTOR IS RESPONSIBLE FOR FIELD LOCATING AND VERIFYING ELEVATIONS OF ALL CURBS AND GUTTERS AT THE POINTS OF CONNECTION SHOWN ON THE PLANS PRIOR TO INSTALLING ANY OF THE NEW IMPROVEMENTS. IF A CONFLICT EXISTS AND/OR A DESIGN MODIFICATION IS REQUIRED, THE CONTRACTOR SHALL COORDINATE WITH THE ENGINEER TO MODIFY THE DESIGN. 17.ADD 4800-FT TO PROPOSED CONTOURS, SPOT ELEVATIONS, AND FFE LABELS, WHERE TRUNCATED. 18.SOME EXISTING INFORMATION SHOWN ON THESE PLANS IS BASED ON DESIGN INFORMATION FOR BUCKING HORSE FILING TWO. CONTRACTOR TO VERIFY ALL RELEVANT EXISTING DATA PRIOR TO CONSTRUCTION AND SHALL NOTIFY ENGINEER OF ANY DISCREPANCIES. 19.THE LOWEST FLOOR AND ALL HVAC, ELECTRICAL, AND MECHANICAL SHALL BE ELEVATED TO 4893.0 FEET (NAVD 88) OR HIGHER. A FEMA ELEVATION CERTIFICATE SHALL BE SUBMITTED AND APPROVED PRIOR TO ISSUANCE OF THE CERTIFICATE OF OCCUPANCY. EXISTING WATER MAIN LEGEND: W EXISTING STORM SEWER EXISTING SANITARY SEWER SS PROPOSED CURB & GUTTER EXISTING FIRE HYDRANT EASEMENT LINE PROPERTY BOUNDARY EXISTING LOTLINE PROPOSED STORM SEWER EEXISTING ELECTRIC CALL 2 BUSINESS DAYS IN ADVANCE BEFORE YOU DIG, GRADE, OR EXCAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES. CALL UTILITY NOTIFICATION CENTER OF COLORADO Know what'sbelow. before you dig.Call R PROPOSED CONTOUR EXISTING CONTOUR PROPOSED SPOT ELEVATION 33.43 PROPOSED SLOPES 2.0% (47.45 ) EXISTING SPOT ELEVATION PROPOSED FIRE SERVICE F PROPOSED SWALE EXISTING LIGHTING PROPOSED LIGHTING UDPROPOSED UNDERDRAIN MINIMUM FINISHED FLOOR ELEVATION (FFE) = B (FFE VARIES, SEE PLAN) MINIMUM MECH./ELEC. EQUIPMENT ELEVATION = A MECH. / ELEC. EQUIPMENT DETAIL NTS SLAB-ON-GRADE BUCKING HORSE FILING TWO - SUNSHINE HOUSE ELEV. DESIGNATION PROJECT ELEV. (NAVD 88) 100-YR FLOOD ELEVATION 4888.33 FT 500-YR FLOOD ELEVATION 4888.69 FT A 4893.00 FT B 4893.00 FT PROPOSED WATER SERVICE W PROPOSED SANITARY SERVICE S INLET SCHEDULE ID DIA (IN)GRATE STRUCTURE TYPE AD BASIN 2 12 DOMED BASIN AD BASIN 3.1 12 DOMED BASIN AD BASIN 3.1-1 8 SOLID BASIN AD BASIN 3.1-2 8 SOLID INLINE AD BASIN 3.2-1 8 SOLID BASIN AD BASIN 3.2-2 8 SOLID INLINE AD BASIN 3.5-1 8 SOLID BASIN AD BASIN 3.5-2 8 SOLID INLINE AD BASIN 3.6 12 DOMED BASIN AD BASIN 3.6-1 8 SOLID BASIN AD BASIN 3.6-2 8 SOLID INLINE AD BASIN 3.7-1 8 DOMED INLINE AD BASIN 3.8-1 8 SOLID BASIN AD BASIN 3.8-2 8 SOLID INLINE AD BASIN 3.10 8 DOMED INLINE AD BASIN 4.1 8 DOMED INLINE AD BASIN 5 8 DOMED TEE w/ RISER PIPE AD BASIN 7 8 DOMED TEE w/ RISER PIPE AD BASIN 9 8 DOMED INLINE RG BASIN 1A 6 DOMED INLINE RG BASIN 1B 6 DOMED INLINE RG BASIN 2A 6 DOMED INLINE RG BASIN 2B 6 DOMED INLINE INLET SCHEDULE THE S E R E C O R D D R A W I N G S , P R O D U C E D B Y N O R T H E R N E N G I N E E R I N G SER V I C E S , I N C . , A R E B A S E D I N W H O L E , O R I N P A R T , U P O N I N F O R M A T I O N PRO V I D E D B Y O T H E R S . N O R T H E R N E N G I N E E R I N G S E R V I C E S , I N C . A S S U M E S NO L I A B I L I T Y F O R T H E A C C U R A C Y O R C O M P L E T E N E S S O F T H I S I N F O R M A T I O N . REC O R D D R A W I N G 1 UT I L I T Y R E C O R D D R A W I N G BR R 02 / 0 3 / 2 0 02.03.20 RECORD INFO.ONLY(SEE NOTE) 2 GR A D I N G & D R A I N A G E R E C O R D D R A W I N G BR R 06 / 1 7 / 2 0 RG BASIN 2B INV. OUT=4887.96 (NW) GRATE=4891.22 RG BASIN 2A INV. OUT=4887.94 (SE) GRATE=4891.22 EX INLET A3 INV. IN=4885.88 (SW) INV. IN=4887.88 (NW) INV. IN=4887.88 (SE) INV. OUT=4885.88 (NE) EX. GRATE=4890.91 PROP. GRATE=4891.22 RG BASIN 1A INV. OUT=4887.42 (SE) GRATE=4890.68 RG BASIN 1B INV. OUT=4887.40 (NW) GRATE=4890.68 EX INLET A2 INV. IN=4885.37 (SW) INV. IN=4887.35 (SE) INV. IN=4887.35 (NW) INV. OUT=4885.37 (NE) EX. GRATE=4890.40 PROP. GRATE=4890.68 10 8 . 6 3 L F 36 " R C P @ 0 . 4 7 % 9.47 LF 6" PERF. HDPE @ 0.50% 15.29 LF 6" PERF. HDPE @ 0.50% 11.68 LF 6" PERF. HDPE @ 0.50% 14.37 LF 6" PERF. HDPE @ 0.50% (91.4 3 ) (9 1 . 3 8 ) (91.3 6 ) (91.42) (91 . 2 2 ) (9 0 . 7 6 ) (90.94) (9 0 . 7 6 ) (9 0 . 8 2 ) (90.92) (9 0 . 6 8 ) (9 1 . 3 0 ) RAISE EXISTING INLET GRATE SEE RAIN GARDEN NOTES RAISE EXISTING INLET GRATE SEE RAIN GARDEN NOTES 89 . 6 8 89 . 6 8 89.68 89.6 8 90.22 90.2 2 90. 2 2 90.22 EXISTING STORM DRAIN 2 2 1 1 UD UD 91.49 90. 1 5 90 . 2 1 91 . 5 7 91. 6 0 91. 5 9 91 . 6 5 90.5 6 90 . 3 6 91.58 89. 6 5 90. 0 4 90. 9 4 90.9 5 89. 7 6 89. 5 7 91. 0 9 91. 1 4 91. 1 4 91. 6 4 90.3 9 89.7 2 4880 4885 4890 4895 4900 4905 4880 4885 4890 4895 4900 4905 9+75 10+00 10+50 RG B A S I N 1 A ST A 1 0 + 0 0 . 0 0 GR A T E E L 4 8 9 0 . 6 8 IN V . O U T 4 8 8 7 . 4 2 ( S E ) 15.29 LF 6" PERF. HDPE @ 0.50% 9.47 LF 6" PERF. HDPE @ 0.50% EX I N L E T A 2 ST A 1 0 + 1 5 . 2 9 EX . G R A T E E L 4 8 9 0 . 4 ± PR O P . G R A T E . E L 4 8 9 0 . 6 8 IN V . I N 4 8 8 5 . 3 7 ( S W ) IN V . I N 4 8 8 7 . 3 5 ( S E ) IN V . I N 4 8 8 7 . 3 5 ( N W ) IN V . O U T 4 8 8 5 . 3 7 ( N E ) EXISTING GROUND PROPOSED GROUND SEE RAIN GARDEN NOTES RG B A S I N 1 B ST A 1 0 + 2 4 . 7 6 GR A T E E L 4 8 9 0 . 6 8 IN V . O U T 4 8 8 7 . 4 0 ( N W ) PROPOSED CONCRETE DIVIDING WALL EXTEND WALL TO BOTTOM OF BIOMEDIA RAIN GARDEN BIO-MEDIA SEE DETAIL 4880 4885 4890 4895 4900 4905 4880 4885 4890 4895 4900 4905 9+75 10+00 10+50 RG B A S I N 2 A ST A 1 0 + 0 0 . 0 0 GR A T E E L 4 8 9 1 . 2 2 IN V . O U T 4 8 8 7 . 9 4 ( S E ) 11.68 LF 6" PERF. HDPE @ 0.50%14.37 LF 6" PERF. HDPE @ 0.50% EX I N L E T A 3 ST A 1 0 + 1 1 . 6 8 EX . G R A T E E L 4 8 9 0 . 9 ± PR O P . G R A T E . E L 4 8 9 1 . 2 2 IN V . I N 4 8 8 5 . 8 8 ( S W ) IN V . I N 4 8 8 7 . 8 8 ( N W ) IN V . I N 4 8 8 7 . 8 8 ( S E ) IN V . O U T 4 8 8 5 . 8 8 ( N E ) PROPOSED GROUND EXISTING GROUND SEE RAIN GARDEN NOTES RG B A S I N 2 B ST A 1 0 + 2 6 . 0 6 GR A T E E L 4 8 9 1 . 2 2 IN V . O U T 4 8 8 7 . 9 6 ( N W ) PROPOSED CONCRETE DIVIDING WALL EXTEND WALL TO BOTTOM OF BIOMEDIA RAIN GARDEN BIO-MEDIA SEE DETAIL PROFILE SCALE: SECTION 1-1 RAIN GARDEN NOTES: EXISTING INLETS DO NOT PROVIDE REQUIRED 12" PONDING. EXISTING INLETS SHALL BE RAISED TO PROVIDE REQUIRED WATER QUALITY VOLUME. C301 RA I N G A R D E N C R O S S - S E C T I O N S 6 NORTH ( IN FEET ) 1 inch = ft. Feet01010 10 20 30 NOTES: LEGEND: EXISTING STORM SEWER PROPOSED CURB & GUTTER EASEMENT LINE CALL 2 BUSINESS DAYS IN ADVANCE BEFORE YOU DIG, GRADE, OR EXCAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES. CALL UTILITY NOTIFICATION CENTER OF COLORADO Know what'sbelow. before you dig.Call R PROPOSED CONTOUR EXISTING CONTOUR PROPOSED SPOT ELEVATION 33.43 PROPOSED SLOPES 2.0% (47.45 ) EXISTING SPOT ELEVATION PROPOSED LIGHTING UDPROPOSED UNDERDRAIN PROFILE SCALE: SECTION 2-2 PROPOSED RAIN GARDEN 1.THE SIZE, TYPE AND LOCATION OF ALL KNOWN UNDERGROUND UTILITIES ARE APPROXIMATE WHEN SHOWN ON THESE DRAWINGS. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO VERIFY THE EXISTENCE OF ALL UNDERGROUND UTILITIES IN THE AREA OF THE WORK. BEFORE COMMENCING NEW CONSTRUCTION, THE CONTRACTOR SHALL BE RESPONSIBLE FOR LOCATING ALL UNDERGROUND UTILITIES AND SHALL BE RESPONSIBLE FOR FOR ALL UNKNOWN UNDERGROUND UTILITIES. 2.REFER TO THE PLAT FOR LOT AREAS, TRACT SIZES, EASEMENTS, LOT DIMENSIONS, UTILITY EASEMENTS, OTHER EASEMENTS, AND OTHER SURVEY INFORMATION. 3.PIPE LENGTHS ARE CALCULATED FROM THE CENTER OF BASINS AND FITTINGS. 4.CONTRACTOR SHALL BE RESPONSIBLE FOR ANY NECESSARY FIELD LOCATES AND POTHOLING OF SUBSURFACE UTILITIES. ENGINEER AND CITY SHALL BE NOTIFIED OF ANY POTENTIAL CONFLICTS. 5.CONTRACTOR SHALL COORDINATE ANY NECESSARY TELEPHONE, CABLE AND ELECTRIC LOWERINGS (OR RE-ROUTING) WITH THE RESPECTIVE UTILITY PROVIDERS TO FACILITATE THE INSTALLATION OF THE PROPOSED UNDERDRAINS AND RAIN GARDEN SOIL SECTIONS. 6.ALL CURB SPOTS SHOWN ARE FLOWLINE ELEVATIONS. ALL OTHER SPOTS ARE FINISHED GRADE ELEVATIONS. 7.REFER TO RAIN GARDEN DETAIL FOR ADDITIONAL INFORMATION. 8.REFER TO LANDSCAPE PLANS FOR ADDITIONAL INFORMATION. Sheet BU C K I N G H O R S E F I L I N G T W O E N G I N E E R N G I E H T R O N R N FO R T C O L L I N S : 3 0 1 N o r t h H o w e s S t r e e t , S u i t e 1 0 0 , 8 0 5 2 1 GR E E L E Y : 8 2 0 8 t h S t r e e t , 8 0 6 3 1 97 0 . 2 2 1 . 4 1 5 8 no r t h e r n e n g i n e e r i n g . c o m of 10 THE S E R E C O R D D R A W I N G S , P R O D U C E D B Y N O R T H E R N E N G I N E E R I N G SER V I C E S , I N C . , A R E B A S E D I N W H O L E , O R I N P A R T , U P O N I N F O R M A T I O N PRO V I D E D B Y O T H E R S . N O R T H E R N E N G I N E E R I N G S E R V I C E S , I N C . A S S U M E S NO L I A B I L I T Y F O R T H E A C C U R A C Y O R C O M P L E T E N E S S O F T H I S I N F O R M A T I O N . REC O R D D R A W I N G 06.17.20 RECORD INFO.ONLY(SEE NOTE) 1 GR A D I N G & D R A I N A G E R E C O R D D R A W I N G BR R 06 / 1 7 / 2 0 Appendix E FEMA Elevation Certificate