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Home My WebLink AboutLot Certifications - 04/14/2016 (3)/15 Page 1 CERTIFICATION OF LOT GRADING Pursuant to 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 attached as-built survey dated (must be within 60 days of date of certification) accurately and truthfully depicting elevations for: z Top of foundation/finished floor z Finished grade on each side of the structure z Quarter points along each lot line (not more than 50 feet apart) z Break points/high points z Swales z Berms z Retaining walls z Air conditioning pads z Window wells z 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. No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes SMS SMS SMS SMS SMS SMS SMS SMS runoff to be directed toward the designed side yard swales located on the property lines. unprotected neighboring properties. It is acceptable for /15 Page 2 9. A smooth transition (no grade break) is provided to all adjacent properties. 10. The grading of this lot does not adversely affect neighboring properties or City infrastructure. 11. Landscaping has been completed prior to survey. If not, please indicate who will be responsible for completing landscaping: 12. Final site cleanup has been completed. 13. I personally visited the site as part of the certification process, and in my professional opinion, the as-built survey is an accurate representation of the site conditions. . No Yes No Yes No Yes No Yes No Yes 14. Based on this information, I certify that (check one): Ƒ 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). Ƒ 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: Email: Phone: Company: Address: 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 ATTN: Water Utilities Engineering 281 North College Avenue Fort Collins, CO 80521 Questions? 970-221-6700 PE Stamp Sign and date SMS SMS SMS SMS SMS 4-14-2016 Metco, the builder's landscaping contractor Steven M. Strickling sstrickling@civas-eng.com (720) 240-5882 CIVAS Engineering, LLC 10056 Brisbane Lane Littleton, CO 80130 ✔ 10056 Brisbane Lane Littleton Colorado 80130 tel 720-240-5882 fax 720-223-6092 www.civas-eng.com April 14, 2016 FORT COLLINS UTILITIES 700 Wood Street Fort Collins, Colorado 80521 Re: Lot 1, Block 11, Kechter Crossing Planned Land Division Certification of Lot Grading The elevations for Lot 1, Block 11, Kechter Crossing Planned Land Division deviate from the elevations shown on the City approved Final Grading Plan for Kechter Crossing Planned Land Division. The top of foundation elevation is approximately 0.3 feet lower than that shown on the Final Grading Plan. The front property corner elevations are approximately 0.3 feet to 0.4 feet lower than those shown on the Final Grading Plan. The rear property corner elevations are approximately 0.4 feet to 0.6 feet lower than those shown on the Final Grading Plan and the rear yard swale high point elevation is approximately 0.7 feet lower than that shown on the Final Grading Plan. However, the elevations and slopes for Lot 1, Block 11, Kechter Crossing Planned Land Division are in conformance with the City of Fort Collins lot grading criteria and the drainage patterns are in general conformance with the City approved Final Grading Plan for Kechter Crossing Planned Land Division. Therefore, it is our professional opinion that these elevation deviations will still allow for stormwater drainage to generally be consistent with the City approved Final Grading Plan. The elevation of the rear yard swale high point elevation shown on the Final Grading Plan is approximately 0.8 feet higher than the rear property line elevations shown on the Final Grading Plan. In order to maintain the Type A lot drainage, as shown on the Final Grading Plan, a berm is required in a portion of the rear yard to provide adequate slope from the rear yard to the rear yard swale. This is not indicated on the Final Grading Plan. However, it was required to be constructed. It is our professional opinion that this is not significant and will still allow for stormwater drainage to generally be consistent with the City approved Final Grading Plan. An earth drainage swale is indicated in Common Area A, Kechter Crossing Planned Land Division, as shown on the Final Grading Plan – 30 Scale (sheet 21 of 55), in order to convey runoff from the side yard and portions of the rear yard of Lots 1 and 8, Block 11 and Lot 1, Block 12, Kechter Crossing Planned Land Division and from the rear yards of Lots 5, 6, 7 and 8, Block 12, Kechter Crossing Planned Land Division to a public storm sewer system in Crossview Drive. At the time the Grading Certification for Lot 1, Block 11 was prepared, it appears that the earth drainage swale on the south side of Lot 1, Block 11 (the north side of Lots 7 and 8, Block 12) was not constructed properly and drainage is not being adequately conveyed to the west to the earthen drainage swale that was constructed properly. We have spoken with Meritage Homes about this issue and understand that they are working with the developer of Kechter Crossing to get this issue resolved. It is our professional opinion that the impact of the inadequate conveyance of drainage that currently exists in Common Area A will be limited to localized shallow ponding of water within Common Area A and will not impact Lot 1, Block 11, Kechter Crossing Planned Land Development. 2 of 2 Lot 1, Block 11 Grading Letter 4-14-16.docx Our lot grading certification was limited to a review of surface drainage and did not include a specific review of the groundwater elevation and the required 3’ separation from the basement floor. We have assumed that this review was performed by others during the structural design to ensure that the required separation was met. Sincerely, CIVAS Engineering, LLC. 4−14−2016 Steven M. Strickling, P.E. & TOF=4943.64 #5733 T:\Projects\KECHTER CROSSING\KECHTER CROSSING PLANNING LAND DIVISION.dwg, 4/4/2016 3:55:41 PM, KPollack DRAINAGE SWALE FL 40.40 (ASSUMED) DRAINAGE SWALE FL 41.15 (ASSUMED NO ELEVATIONS OR GRADES ARE SHOWN FOR THE DRAINAGE SWALE. BASED ON THE CONTOURS, IT IS ASSUMED THAT IT IS INTENDED TO SLOPE AT 1% DRAINAGE SWALE DRAINAGE SWALE DRAINAGE SWALE FL 40.00 This unofficial copy was downloaded on Jan-14-2013 from the City of Fort Collins Public Records Website: http:/citydocs.fcgov.com For additional information or an official copy, please contact Engineering Office 281 North College Fort Collins, CO 80521 USA April 14, 2016 Kechter Crossing Planned Land Subdivision 5733 Tilden Street Fort Collins, CO 80528 B1503353 86082-18-001 1 11 20120065100 Steven M. Strickling 3-22-16