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Home My WebLink AboutLot Certifications - 11/06/2006 (4)Nov •03 06 06:54p P-2 Citv of Fort Coll3PS Mies CERTIFICATION OF LOT GRADING Pursuant to City Code § 26-544 and STORMWATER City Land use Code § 3.2.2 (e) RECEIVED NOV 0 12006 (,(Print)' 1�WlT� a Colorado registered professional engineer, have personally inspected the above referenced property in the City of Fort Collins, Colorado, and verify thatconstruction of all stomrwater f dities and grading then: is complete, and that the elevations and drainage patterns shown on the attached drawing(s) which were developed from a survey performed on (Date)j&6erAi CY m1 6 , 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 lot are in substantial conformance with the City approved drainage and grading plan or revised grading plan for the property (information attached). SEE NOTE XThe elevations and drainage patterns of the lot as measured are in general conformance with the City approved drainage plan or revised grading plan with exceptions (information attached). In my professional judgment the elevations and grading of the lot as constructed is functionally . adequate and wpl allow for stormwater drainage consistent with the approved drainage plan. SEE NOTE .(SX4a(,W ELMY ) n By: of signing party) 1 ding drawinge of the Iotlsite shoring the approved design or A COIIAPLETF suenditad including lout not Ilmited fn revised desigdarid asb!_QIs`Sarveyed etevatons of all struotures•and drainage and grading features (e g. swates, retaining vraiis, lot corners), vjrftn irrtbii t axplaretion of discrepancies, etc. to: Fort Colons lJ Wes (970) 221-67W 7W Wood Street Fort coilirmCO 80521 At Least Two Weeks Prior To Requesting A Certificate Of occupancy For 'ihe Property Nov •03 06 06:55p p.3 November 3, 2006 Mr. Jay Barber City of Fort Collins 700 Wood Street Storm Water Utility Fort Collins, CO 80521 RE: 1115 Town Center, Lot 28, Hearthfire PUD, 2nd Filing CDS Project No. 9435.59 STORMWATER RECEIVED Nov o , 2a Dear Jay, We have been asked to provide a grading oertification for 1115 Town Center in Hearthfire PUD, 2"d Filing. We have found the lot grading to sufficiently drain away from the on -site house. However, the rear lot drainage is limited by existing grades at the lot comers, as well as an existing berm on the rear lot line. After examining the surveyed elevations, we have determined that the berm is low enough to allow water to overtop without entering the house. We understand that an underdrain was designed for this low point by the berm to facilitate drainage of the lots by Shear Engineering. After consulting Shear Engineering, we have determined that the placement of a small drain inlet in the underdrain would be an acceptable solution to drain the backyard of this site. We have discussed our recommendation with JW Enterprises, the home builder, and it is our understanding that they will be installing a drain inlet soon. This drain inlet should be placed halfway between the north and south lot lines within the flowline over the underdrain. It is important for the homeowners to understand that the inlet should be kept free of debris. We have relayed this to JW Enterprises. If you have any questions, please do not hesitate to call me. Respectfully, FOR AND ON BEHALF OF Y!CDENGINEERING CORPORATION SL Schaff, P.E. 165 2nd Street S. W. • Loveland, CO 80537 • (970) 667-8010 • Fax: (970) 667-8024 Nov•03 06 06:55p p.4 GRADING STORMWATER CERTIFICATION RECEIVED 4. `- :.,, . T° c NOV 0 3 2006 LOT 28 1115 TOWN CENTER DR F'�'rF HEARTHFIRE PUD— 2ND FILING FT. COLLINS, CO 2. 4. J /Y_YJiI 30 0 30 SCALE 1 e=30' x® INDICATES GROUND SHOT PER COS ENGINEERING I, Michael J DeDedaer, a duly registered Professional Land Surveyor in the State of Colorado do hereby state that the elevations shown on this Grading Certifi a the irect result of field shots taken November 3, 2006 by me or by personnel under my supervision, arp re resent field conditions on the date of the survey. NOTCE: ocaawnl�based on o ratioany low, o , you MUST commence any legal Michael J DeDedcer PLS 6 years after you *at disovowed such �e �In no For and on behalf of ALA' event. may any action based upon any defeet in this the CDS Engineering Corp. date of the cwtirteationcwnmwmd shotm than from SCALE: f• = 3o' Engineering JOHN `TNO- 9435.59 DATE: 11-03-06 Corporation DRAwutc Na 9435 L28 Wi4i.Z FIELD BOOK: N/A 165 2nd ST W REVISION NO. DRAWN: TMD CHECKED: M,lp LovEL 970c 6oRA 010 80538 ENTERPRISES SHEET t OF 1 Nov-03 06 06:55p P.5 41 V 40' .4r 95 3 94 N WATPI WAIII, ro Nov •03 06 06:55p p.6 DRAINAGE CERTIFICATION FORM Please fill out all applicable items in this certification form for single family, multi -family and commercial properties. Write "OK" for items checked or actual number checked in field. Use "N/An for items that are not applicable to the property that is being certified. A. Drainage facilities certification WA 1. ' Pond Certification -volume verification a.topographic records and volume b.cross-sections and spot elevations -positive fall to pan -side slopes -invert elevation . -spillway elevation -placement and size of riprap -side slopes -grading . -orifice plate installation and size- -compaction of berm -structural integrity of pond WA 2. Swales -location (are they within easement) -dimensions and cross-section verification -longitudinal slopes and side slopes -spot elevations STORMWATER RECEIVED NOV 0 3 2006 Nov.03 06 06:55p p.7 -permanent erosion control measures (drop structures, riprap, etc....) -tie-in to pipes, pans, curbs, etc.... -weir size (elevations, size, opening, etc.) -available freeboard -landscaping infringement on swales 3. Pipes -size and type -slopes (as -built and comparison to minimum 0.4% slope) -pipe capacity calculations if slopes are significantly altered -invert elevations -installation and backfill material -cover -encasement and clearance from other utility lines close by -joints 4. Concrete Pan Channels STORIVIWATER =size RECEIVED -slope NOV 0 3 2006 -super elevation -cross .section -thickness -elevations fW5. Inlets -size and type Nov•03 06 06:56p p.8 -size of opening (or name of standard used) -grate elevation invert elevation -box size �A6. cross pans -size -type -grade -elevation -cross-sectional depth -tie-in to curb and gutter 47. Culverts -size -type- -invert elevation -headwalls j*8. Underdrains •sizi -type -cover backfill -geotextiles -cleanouts 9. Curb cuts -size ST0RMWATc7.rj RECEIVED NOV 0 3 2006 -tie in to swale, pipe, etc... B. Certification of Grade Elevations Adjacent to Dn=age Facilities: Hov•03 06 06:56p p.9 -minimum opening elevations -top of foundation elevations -comparison to 100 year WSEI's (Freeboard requirements and floodplain issues) C. Certification of Erosion Control tenures: Nps1. Permanent Measures: -Permanent vegetation (6" bare spots and weeds under control) -riprap -riprap bedding -drop sections s MWATER sediment basins/water quality ponds RECEIVED -netting mats/blankets NOV O 3 2006 -mulching VA2. Temporary Measures: -mulching -inlet .filter installation -check bale dams -seeding and temporary vegetation -silt fence D. Site Cleanup After Construction .construction clean up '"�- smoothing of ruts -reseeding E. Statement of Compliance This certification is signed and stamped and by signing this form the engineer(s) attests that they have inspected Nov.03 06 06:56p p.10 the site and to the best of their knowledge the as -built conditions of the drainage facilities are as described in the above form and in the redlired plans enclosed. Failure to properly disclose all known information could result in the rejection of this certification and prevent the release of any Stormwater Utility holds on Building Permits and/or Certificates.of Occupancy. P. Signatnre and Stamp by a Colorado Registered Professional Engineer. STORMWATER RECEIVED NOV O 3 �00�