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Home My WebLink AboutLot Certifications - 12/22/2020 (5)2/14/17 Page 1 CERTIFICATION OF LOT GRADING Pursuant to Fort Collins City Code § 26-544 & City Land Use Code § 3.3.2 (e) Date: Address: Lot: Block: Subdivision: Permit Application #: Larimer County Parcel #: Larimer County Reception #: (on development agreement) I, (print) , a Colorado registered professional engineer, verify that construction of all stormwater facilities and grading is complete and hereby submit this certification. Please answer the following questions by initialing the appropriate response. For each question initialed “No,” attach an explanation detailing how this will affect stormwater drainage for this lot and any adjacent lots. 1.Certification includes attached Stormwater-approved grading plan. (NOTE: City’s Building Department does not approve grading plans). 2.Certification includes the attached as-built survey dated (must be within 60 days of the date the certification is submitted) accurately and truthfully depicting elevations for: Top of foundation/finished floor Finished grade on each side of the structure Quarter points along each lot line (not more than 50 feet apart) Break points/high points Swales Berms Retaining walls Air conditioning pads Window wells Any other appurtenance(s) within an easement 3.All elevations are within a 0.2 foot tolerance of the approved grading plan. 4.The top of foundation is at least 6 inches above the highest grade surrounding the structure. 5.There is a minimum grade of 5% away from the structure within the first 5 to 10 feet adjacent to the residence. 6.All slopes meet or exceed the minimum requirement of 2% (1% is acceptable on single family lots when the swale is draining the runoff from only two adjoining properties) and are not steeper than 33% (3:1). 7.All flow lines of stormwater drainage swales are a minimum of 6 inches below the elevation of ground adjacent to the structure and will direct drainage as shown on the Stormwater-approved grading plan. 8.All downspout locations and discharge directions are shown on the as-built survey. Runoff is directed into an appropriate drainage system or lot line swale, and it is not directed onto neighboring properties. No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes December 22, 2020 East Ridge Fourth Filing 2720 Barnstormer Street B2002711, B2002712, 2002713, B2002714, B2002715, B2002716, Fort Collins, Colorado 8708168001, 870816802, 8708168003, 8708168004, 8708168005, 8708168006 1,2,3,4,5,6 Phase 8a 20170085863, 20200012736 Herman Feissner 12.07.2020 HF HF HF HF Variations from 0.2 foot tolerance exist, see attached CoLG Exhibit. HF As-built survey data is shown highlighted in BLUE on the attached Plot Plan. HF Downspout locations were observed and photographed during my site visit on December 16, 2020. The as-built condition is adequate. Refer to the ILC for the downspout locations. Air Conditioning (AC) pads were observed and photographed during my site visit on December 16, 2020. The AC pads (and downspout locations) are shown on the Improvement Location Certificate (ILC). HF HF Checked By: Project No: Drawn By: Date: 5265 Ronald Reagan Blvd., Suite 210 Johnstown, CO 80534 970.800.3300 •GallowayUS.com 2720 BARNSTORMER ST LOTS 1-6, EAST RIDGE FOURTH FILING CLIENT: HARTFORD HOMES LLC. CERTIFICATION OF LOT GRADING HFH0000019.10 WH HHF 12/08/20 SCALE: 1"=20' 0 10 20 SCALE: 1"=30' 0 15 30 4920 4925 4930 4935 4940 4945 4950 4955 4960 4920 4925 4930 4935 4940 4945 4950 4955 4960 STA=10+54.17 (STORM A) STA=20+00.00 STORM A1 SDMH A1 6'Ø FLAT TOP MH RIM=4949.31 INV IN (30" E)=4943.19 INV IN (30" W)=4943.19 INV OUT (36" S)=4942.69 DEPTH=6.62 STA=20+33.54 INLET A1.1 NYLOPLAST DRAIN BASIN W/ 30" DOME GRATE RIM=4948.11 INV IN (24" W)=4943.86 INV OUT (30" E)=4943.36 DEPTH=4.75 33.54 LF - 30'' RCP @ 0.50% 107.18 LF -24''RCP @ 0.50% STA=21+40.72 INLET A1.2 NYLOPLAST DRAIN BASIN W/ 2' X 3' STEEL BAR GRATE RIM=4948.54 INV IN (24" W)=4944.39 INV OUT (24" E)=4944.39 DEPTH=4.14 166.86 LF - 24'' RCP @ 0.30% STA=23+07.58 INLET A1.3 NYLOPLAST DRAIN BASIN W/ 24" DOME GRATE RIM=4949.36 INV OUT (24" E)=4944.89 DEPTH=6.67 7.2' STA=21+92.10 INV=4935.55 SANITARY CROSSING PROPOSED GRADE EXISTING GROUND 100 yr HGL HGL HGL HGL HGL HGL 8''SS 8''SS 8''SS 8''SS8''SS8''SS8''SS UE UE UE MMMM 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 18''SS 18''SS 18''SS 18''SS 8''W 18''SS 18''SS 18''SS PRIVATE DRIVE C PRIVATE DRIVE B BARNSTORMER STREET 23+07.58 20+0021+0022+0023+00 INLET A1.2 STA=21+40.72 NYLOPLAST DRAIN BASIN W/ 2' X 3' STEEL BAR GRATE N:19672.1033 E:10981.1819 INLET A1.3 STA=23+07.58 NYLOPLAST DRAIN BASIN W/ 24" DOME GRATE N:19673.0313 E:10814.3243 INLET A1.1 STA=20+33.54 NYLOPLAST DRAIN BASIN W/ 30" DOME GRATE N:19671.5071 E:11088.3630 30'' RCP 33.54 LF @ 0.50% 24'' RCP 107.18 LF @ 0.50% 24'' RCP 166.86 LF @ 0.30% SANITARY LINE 2.3 SEE SHEET SS01 STORM DRAIN A SEE SHEET SD01 SDMH A1 STA=20+00.00 STORM A1 STA=10+54.17 (STORM A) 6'Ø FLAT TOP MH N:19671.3206 E:11121.9043 52 52 51 49 52 52 52 52 49 52 52 52 51 51 49 51 52 DateCity Engineer Date Date Date Date Stormwater Utility Parks & Recreation Traffic Engineer Date APPROVED: CHECKED BY: CHECKED BY: CHECKED BY: CHECKED BY: CHECKED BY: Water & Wastewater Utility City of Fort Collins, Colorado UTILITY PLAN APPROVAL Environmental Planner ROTATION: 90° STA: SCALE: H: 1"=V: 1"= toSTORM DRAIN A1 20+00.00 23+07.58 50 5 CAUTION - NOTICE TO CONTRACTOR 1. ALL UTILITY LOCATIONS SHOWN ARE BASED ON MAPS PROVIDED BY THE APPROPRIATE UTILITY COMPANY AND FIELD SURFACE EVIDENCE AT THE TIME OF SURVEY AND IS TO BE CONSIDERED AN APPROXIMATE LOCATION ONLY. IT IS THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY THE FIELD LOCATION OF ALL UTILITIES, PUBLIC OR PRIVATE, WHETHER SHOWN ON THE PLANS OR NOT, PRIOR TO CONSTRUCTION. REPORT ANY DISCREPANCIES TO THE ENGINEEER PRIOR TO CONSTRUCTION. 2. WHERE A PROPOSED UTILITY CROSSES AN EXISTING UTILITY, IT IS THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY THE HORIZONTAL AND VERTICAL LOCATION OF SUCH EXISTING UTILITY, EITHER THROUGH POTHOLING OR ALTERNATIVE METHOD. REPORT INFORMATION TO THE ENGINEER PRIOR TO CONSTRUCTION. GENERAL MANAGER REVIEWED BY: DATE: UTILITY PLAN REVIEW BOXELDER SANITATION DISTRICT REVIEW DOES NOT CONSTITUTE "APPROVAL" OF PLANS. PLAN ENGINEER IS RESPONSIBLE FOR ACCURACY AND COMPLETENESS. PROPOSED RIGHT-OF-WAY EXISTING WATER MAIN PROPOSED WATER MAIN PROPOSED STORM SEWER LEGEND: NOTES: T T T EXISTING STORM SEWER EXISTING GAS EXISTING TELEPHONE PROPOSED SEWER SERVICE EXISTING SANITARY SEWER PROPOSED STORM INLET PROPOSED CURB & GUTTER PROPOSED SANITARY SEWER PROPOSED FIRE HYDRANT PROPOSED LOTLINE EASEMENT LINE PROPERTY BOUNDARY E E EPROPOSED ELECTRIC PROPOSED RESIDETIAL SERVICE 1. ALL SANITARY SEWER LINE CONSTRUCTION SHALL CONFORM TO THE LATEST BOXELDER SANITATION DISTRICT “STANDARDS AND SPECIFICATIONS FOR SANITARY SEWER PIPELINE CONSTRUCTION AND IMPROVEMENTS.” 2. ALL SEWER SERVICES SHALL BE MINIMUM 4 INCH DIAMETER CONSTRUCTED AT A SLOPE OF 2% FROM THE BUILDING TO THE SEWER MAIN, UNLESS OTHERWISE SPECIFIED AND APPROVED BY THE DISTRICT. 3. ALL 6 INCH DIAMETER SEWER SERVICES SHALL BE CONSTRUCTED AT A SLOPE OF 1% FROM THE BUILDING TO THE SEWER MAIN. 4. WHEN GROUNDWATER IS ENCOUNTERED CLAY CUT OFF WALLS SHALL BE INSTALLED ON THE UPSTREAM SIDE OF ALL MANHOLES, IN THE MID SECTION OF EACH MAIN LINE RUN AT INTERVALS NOT TO EXCEED 300 FEET, OR AS REQUIRED BY THE DISTRICT. SEE DETAIL SHEETS FOR CLAY CUT OFF WALL DETAIL. 5. FIELD VERIFY INVERT ELEVATION OF SANITARY SEWER AND BASEMENT FINISHED FLOOR ELEVATION FOR GRAVITY FLOW PRIOR TO CONSTRUCTING FOUNDATIONS. 6. THE CONTRACTOR SHALL SCHEDULE A PRE CONSTRUCTION MEETING WITH BOXELDER SANITATION DISTRICT A MINIMUM OF ONE WEEK BEFORE CONSTRUCTION TO COORDINATE SCHEDULES AND CLARIFY ANY ADDITIONAL DISTRICT REQUIREMENTS. CONTACT NUMBER IS 970-498-0604. 7. CONTRACTOR SHALL NOTIFY THE DISTRICT'S INSPECTOR FORTY EIGHT HOURS PRIOR TO START OF CONSTRUCTION. 8. CONTRACTOR SHALL BE RESPONSIBLE FOR COORDINATING FIELD LOCATES AND ELEVATIONS OF ALL EXISTING UTILITIES PRIOR TO ANY CONSTRUCTION. 9. ALL CONSTRUCTION SHALL BE INSPECTED BY DISTRICT INSPECTOR PRIOR TO BACKFILL. 10. FOR OFF SITE SEWER LINE MANHOLES: MANHOLE RIMS SHALL BE SET FLUSH WITH THE SURFACE WHEN WITHIN AN ALL WEATHER ACCESS ROADWAY, RIMS SHALL BE SET 6 INCHES ABOVE GRADE IF THEY ARE NOT WITHIN AN ALL WEATHER ACCESS ROADWAY. 11. SEE SHEET EX01 & EX02 FOR EXISTING BOUNDARY CORNER COORDINATES. 12. PRIOR TO ON-SITE CONSTRUCTION, SURVEYOR SHALL CONFIRM ELEVATION OF EXISTING MANHOLE SHOWN ON PLANS PREPARED BY FARNSWORTH GROUP TITLED "EAST RIDGE OFFSITE SANITARY SEWER" PREPARED FOR BOXELDER SANITATION DISTRICT. MANHOLE CSi0155 IS LOCATED NEAR THE NORTH FRONTAGE ROAD OF COLORADOS TATE HIGHWAY 14. MANHOLE CSI0155 IS AT STATION 1+00 AND HAS A RIM ELEVATION OF 4925.98, INV OUT(S) OF 4913.93, INV IN (N) OF 4914.28 AND AN INV IN (W) OF 4914.28. IF SURVEY IS FOUND NOT TO MATCH WITH SITE SURVEY DATUM AND DESIGN, GALLOWAY IS TO BE NOTIFIED AND DISCREPANCY RESOLVED. 13. JM EAGLE PVC SDR 35 8" GASKETED PLUG OR APPROVED EQUAL. 14. MARK THE LOCATION OF EACH BRANCH WITH A TWO INCH BY FOUR INCH (2” X 4”) WOODEN MARKER EXTENDING FROM THE BRANCH VERTICALLY TO WITHIN ONE FOOT (1') OF THE GROUND SURFACE. A - ANCHOR MARKERS AND MAINTAIN IN A VERTICAL POSITION DURING BACKFILLING. B - RECORD LOCATION OF EACH MARKER ON THE DRAWINGS. C - PAINT GREEN. 15. STORM LINES A, A1, B1, AND B1 ARE PRIVATE LINES UP STREAM OF STORM DARIN MANHOLE A1 AND STORM DRAIN MANHOLE B1. GAS S 8''W 8''SS 8''SS 8''W M M PROPOSED MANHOLE 5265 Ronald Reagan Blvd., Suite 210 Johnstown, CO 80534 970.800.3300 O www.gallowayUS.com C 2017. Galloway & Company, Inc. All Rights Reserved Date: Drawn By: Project No: Checked By: H:\Hartford Homes\CO, Timnath - HFHLV0001.02_Timberline & Vine Multi-Family\CADD\4-As Built\HFHLV1.02_SD01-SD042_AB.dwg - Herman Feissner - 12/21/2020 HFH000013.20 01.22.20 Init.#Issue / DescriptionDate EAST RIDGE FOUR TH FILING MOSAIC TOWN HOMES FORT COLLINS, CO THESE PLANS ARE AN INSTRUMENT OF SERVICE AND ARE THE PROPERTY OF GALLOWAY, AND MAY NOT BE DUPLICATED, DISCLOSED, OR REPRODUCED WITHOUT THE WRITTEN CONSENT OF GALLOWAY. COPYRIGHTS AND INFRINGEMENTS WILL BE ENFORCED AND PROSECUTED. COPYRIGHT EAST RIDGE HOLDINGS 4801 Goodman Rd. Timnath, CO 80547 970.674.1109 H:\Lomas Partners\CO, Johnstown - LOMLV0001.01 - Thompson Crossing II\CADD\engineers\James\Prelog CO.jpg 01.22.20 SD02 JEP JPD ( IN FEET ) 1 inch = ft. 0 Feet5050 50 100 150 KEYMAP TIMBERLINE ROAD SD01 SD04 SD03SD02 1 2020/07/17 MINOR AMENDMENT - LOT LINE DBC 167.93 0.39% 08.13.2020 RECORD DRAWINGSAB DBC 107.04 0.54% 167.93 0.39% STORM MANHOLE 107.04 0.54% 32.42 0.46% 32.42 0.46% OBSERVED BEE-HIVE GRATE DURING 20201216 SITE VISIT OBSERVED BEE-HIVE GRATE DURING 20201216 SITE VISIT