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HomeMy WebLinkAboutLot Certifications - 01/25/2017 (4)Date: 1/24/2017 Subdivision: TRAIL HEAD Address: 3251 GREEN LAKE DRIVE Permit Application #: Fort Collins, CO Larimer County Parcel #: Lot: 9 Block: 17 Larimer County Reception #: - (on development agreement) [,(print) TIMOTHY JAMES HALOPOFF '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 attached as-built survey dated 01/23/2017 (must be within 60 days of date of certification) 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 25% (4:1). 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 not directed toward neighboring properties. 12/15 No Yes t'$4 No Yes 'r314 No T)4 Yes No Yes 14 No Yes TT14 No Yes '\ No Yes -( No Yes 1'51'4 Page 1 9. A smooth transition (no grade break) is provided to all adjacent properties. No Yes 10. The grading of this lot does not adversely affect neighboring properties or City No Yes iH infrastructure. 11. Landscaping has been completed prior to survey. If not, please indicate who will be No 77v4 Yes responsible for completing landscaping: Zipr F,2.o.Jr J øt..& J&et 12. Final site cleanup has been completed. No Yes T1H 13. I personally visited the site as part of the certification process, and in my professional No Yes T)4 opinion, the as-built survey is an accurate representation of the site conditions. 14. Based on this information, I certify that (check one): LI The elevations and drainage patterns of the lot/site are in substantial conformance with the City approved drainage and grading plan for the property (information attached). The elevations and drainage patterns of the lot/site as measured are in general conformance with the City approved drainage plan with exceptions (information attached). In my professional judgment the elevations and grading of the lot/site as constructed are functionally adequate and equivalent to the specifically approved drainage plan, and will affect stormwater drainage on and off the lot/site in a manner consistent with the approved drainage plan. Name: TIMOTHY JAMES HALOPOFF Email: thalopoff©jrengineering.com Phone: 303-267-6230 :0 37953 . Address: 2900 S. COLLEGE AVE, SUITE 3D Company: JR ENGINEERING ONAL FORT COLLINS, CO 80525 PE Stamp Sign and date NOTE: A complete certification must be submitted at least two weeks prior to a request for a Certificate of Occupancy for the lot/site, including, but not limited to, drawings of the lot/site showing the approved design and as-built surveyed elevations of all structures, drainage and grading features, written information/explanation of discrepancies, and other information necessary to confirm the above certification to: Email (preferred) WaterUtilitiesEng@fcgov.com Mailing Address Fort Collins Utilities AUN: Water Utilities Engineering 281 North College Avenue Fort Collins, CO 80521 Questions? 970-221-6700 Cit" of Fort Collins 12/15 Page 2 () J-R ENGINEERING A Subsidiary of Westrian 7200 S. Alton Way, Suite 0400. Centennia CO 80112 303-740-9393 • Fax 303-721-9019. www.jreroineering.com JOB NUMBER 39145.38 CLIENT TRITON COMMUNITIES SUBDIVISION TRAILHEAD FILING—BLOCK 17 LOT- DATE 01/24/17DRAWN BY_ 9 n\I DRAINAGE CERTIFICATE L=742'38" 300.00' TRACT Q / L=40.37' C- - w/ ALK -------- 4 ----------------- 76.7- I I II I I A H 76.5 II 77.0 COVERED 782 W- WELL 78.5 PORCH LEGEND = ROOF DRAIN W-WELL = WINDOW WELL N 246'37"W 100.00' LOT 8 77.6 HP 1'rV1 A 4~ r iI 770 I CHASE °_ A 'ol A/C PAD ONE STORY - STONE AND STUCCO 3251 GREEN 77.9 LAKE DRIVE HP LOT 9 4,676 SF TOF=79.O TOS= 78.3 78. 2 ASry 75.9 75.9 - 6'47 R=4OO.00' L=53.15' S2005' 50" E 7200 South Alton Way, Suite C400 Centennial, CO 80112 303-740-9393 x Fax 303-921-7320 3930 Sinton Road, Suite 219 Colorado Springs, CO 80907 719-593-2593 x Fax 303-921-7320 X 2900 South College Avenue, Suite 3D Fort Collins, CO 80525 970-491-9888 x Fax 303-921-7320 MEMORANDUM To: City of Fort Collins, Bldg Dept. From: Tim Halopoff, PE Date: 1-24-2017 Subject: 3251 Green Lake Drive, Lot 9, Blk 17 – Drainage Certificate Supplement Certification of Lot Grading - Supplement Item: 3. Not all elevations are within 0.2’ of the approved grading plans, but the drainage intent has been met without impacts to adjoining properties. 11. It is industry standard to certify the grades prior to landscape installation. The landscaping was not complete at time of survey. A Westrian Company 100.00' LOT 10 ii .r CONC. 5 ,qy DRIVE ---- EDGEO 75.6J 20 10 0 2C ORIGINAL SCALE: 1" = 20' THE PROPERTY DESCRIBED AS: LOT 9, BLOCK 17, TRAIL HEAD, CITY OF FORT COLLINS, COUNTY OF LARIMER, STATE OF COLORADO; (PER CLIENT) ALSO KNOWN AS 3251 GREEN LAKE DRIVE. DRAINAGECERTIFICATE I HEREBY CERTIFY THE ELEVATIONS AND DRAINAGE PATTERNS SHOWN WERE DEVELOPED FROM SURVEYING THE PROPERTY ON JANUARY 23.2017 AND ACCURATELY DEPICT THE ELEVATIONS EXISTING DURING THE SURVEY. THE ELEVATIONS MAY CHANGE SUBSEQUENT TO THE SURVEY DUE TO SUBSIDENCE, UPHEAVAL, EROSION, ACTS OF MAN OR OTHER FACTORS. THEREFORE, THIS CERTIFICATE MAY NOT ACCURATELY DEPICT THE ELEVATIONS AND DRAINAGE PATTERN AFTER THE DATE OF SURVEY. THE UNDERSIGNED, A REGISTERED PROFESSIONAL ENGINEER/SURVEYOR, CERTIFY I HAVE INSPECTED THE SURVEY DATA AND HAVE CONCLUDED THE LOT WILL DRAIN ADEQUATELY IN CONFORMANCE WITH THE OVERALL SUBDIVISION DRAINAGE PLAN AND INDIVIDUAL LOT GRADING PLAN. BY: TIMOTHY JAMES HALOPOFF, PROFESSIONAL ENGINEER COLORADO P.E. NO. 37953 FOR AND ON BEHALF OF JR ENGINEERING, LLC . 37953 Q. - :' •. s. .