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HomeMy WebLinkAboutLot Certifications - 03/26/2015 (4)Utilities electric. stormwater. wastewater. water C ort Collins Too Wood PO Box 580 r Fort Collins.. CO 80522 970-221.6700 970.221.0619619 fax . 970.224.6003 TDD u61Xes@hgovcom . fcgovcom/utilities CERTIFICATION OF LOT GRADING Pursuant to City Code § 26-544 and City Land Use Code § 3.3.2 (e) Date: 3/26/15 Permit Application No, B1403324 Co ftlfosedUR 3�zm�2as Address: 4608 Chokecherry Trail Units 1 & 2 Lot: 'I Block:1 Subdivision: Harmony Ridge P.U.D. (,(Print) James A. Bruntz , a Colorado registered professional engineer, verify that the above referenced property in the City of Fort Collins, Colorado, has been inspected by me or an appropriately qualified professional under my direct supervision, and verify that construction of all stormwater facilities and grading is complete, and that the elevations and drainage patterns shown on the attached drawing(s) which were developed from a survey performed on (Date): /1 / 5 , accurately and truly depict the elevations and drainage patterns as they existed on the date of the survey. Based on this information, I certify that (check one): ❑ The elevations and drainage patterns of the IoUsite are in substantial conformance with the City approved drainage and grading plan for the property (information attached). SEE NOTE. fQ 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 IoUsite as constructed are functionally adequate and equivalent to the specifically approved drainage plan, and will affect stormwater drainage on and off the loVsite in a manner consistent with the approv 'age plan. SEE NOTE. A ND0 (1�Fy By: C//LJ.w �j A. JS �" Engineer, TST, Inc. CceOlting Engineers 760 Whalers Way, Bldg. C. Suite 200 2 43753J. Fort Collins. CO 80525 S'.......... ibruntz(atstinc.com / (970) 226-0557 NOTE: A COMPLETE certification must be submitted at least two weeks prior to a request for a Certificate of Occupancy for the lotisite, including but not limited to drawings of the loVsite showing the approved design and as -built surveyed elevations of all structures, drainage and grading features (e.g. swales, retaining walls, lot corners), written irdornationlexplanation of discrepancies, and other information necessary to confirm the above certification to: Fort Collins Utilities 700 Wood Street Fort Collins, CO 80521 (970) 221.6700 Rev 9/3/2014 Submit Two Weeks Prior To Requesting A Certification Of Occupancy For The Property TST, INC. CONSULTING ENGINEERS March 26. 2015 4608 Chokecherry Trail, Units I & 2 Items of Note: Survey provided by Washburn Land Surveying, LLC on March 10, 2015. o City of Fort Collins Benchmark for survey datum is Benchmark 18-94, NAVD 88 — Elevation 5119.79. The survey held southeast comer point of 5131.2 as labeled in the site grading plan. The elevation of the held point using Benchmark 18-94 is 5134.12 for an elevation difference of 2.92 feet. The north edge of the driveway slopes toward the garage at a 0.8% slope. Upon visual inspection, a slight pan is formed into the driveway which slopes in a southwesterly direction away from the building. Runoff in the swale north of the building as well as runoff from the roof drain flow as depicted away from the garage and toward the street at approximately 2.9%. Existing grading does not meet the typical 5% in the first 10' away from the foundation, nor is there 2% minimum throughout the lot. However, there is positive drainage away from the structure. It should be noted that areas of minimal slope may cause landscape oversaturation and wet areas. The south side of the building between units 4608 and 4612 was noted to have locations where the Swale leveled out and drainage could be directed toward the lower building to the south. In the southwest comer area, the Swale between the units was cut lower to create a more defined Swale and prevent drainage from concentrating toward the lower building. Drainage will be directed away from the building in the Swale, where it will outfall to the west. • The downspout pipe was uncovered to reveal the pipe was buried with no daylight. Therefore the pipe was extended further from the buildings where it will terminate in a bubbler system. • Pictures documenting the swale and downspout alterations are attached. 760 Whalers Way Bldg C, Suite 200 Fort Collins, CO 80525 970.226.0557 main 303.595.9103 metro 970.226.0204 fax ideas@tstinc.com w Astinc.com 0 Swale and downspout pipe at southwest comer of 4608 Chokecherry Trail. Between buildings 4608 (left) and 4612 (right). 0 ,f 4 l Swale and downspout pipe at southwest corner of 4608 Chokecherry Trail. Between buildings 4608 (left) and 4612 (right). 0 ! zmew 2 z,eWmmo a zo mm mg)§ + \o /8 ' SXwm®z/mDn : aOZMOW 2 Z f } ,\§7)ƒ£\)<! g \ ' ) 18522222§ !@222Diq`� , % �' { W� a®o12&Z0 0 ©��m_<x;� §)§/<2kmm§\ , . 7 a ■ . : `///}\ i 0 LL §§)Z&& � C) — }.Lv mom, � A.§ Of , !; ° , §§/§ § \e% )0.oc 2 ■ , : 0- � } \ \ D 9 SOLID UKS ARE NEVI CONTO I I , -'B,UE SAGEOR 2w WyO o w 3 z1N z Coo O Z O � v OfO a LL :5 ON S-2