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Home My WebLink AboutLot Certifications - 03/10/2017 (2)5/26/16 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 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 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 March 10, 2017 Manhattan Townhomes 2nd 3830 Manhattan Avenue - Units G1 thru G5 B1602680 ; B1602681 ; B1602682 B1602683 ; B1602684 Fort Collins, CO 80526 97351-65-032; 97351-65-033; 97351-65-034 97351-65-035; 97351-65-036 32, 33, 34, 35, 36 Building G 20150072782 Nicholas W. Haws 02.23.17 NWH NWH NWH NWH NWH NWH NWH NWH (SEE NOTES ON ATTACHED AS-BUILT SURVEY) (NOTE SPECIAL FOUNDATION DETAIL) 5/26/16 Page 2 9. A smooth transition with no vertical offset (step) in grade is provided at the lot line 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): □ 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: 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 Builder / Contractor NWH NWH NWH NWH NWH 4 Nicholas W. Haws nick@northernengineering.com 970.568.5414 Northern Engineering 301 N. Howes Street, Suite 100 Fort Collins, CO 80525 03.10.17 UNIT G5 UNIT G4 UNIT G3 UNIT G2 UNIT G1 ELEVATIONS ARE OUTSIDE OF 0.2-FT TOLERANCE, BUT DRAINAGE REMAINS ACCEPTABLE. NOTE SPECIAL FOUNDATION DETAIL. SEE ATTACHED PAGES FOR ADDITIONAL INFORMATION. RETAINING WALL DEEMED UNNECESSARY 1 Nick Haws To:Dan Mogen Subject:manhattan grade vs stone See comments below from the project architect pertaining to finished grade relative to stone veneer. Any potential problems would be purely cosmetic and would not compromise waterproofing or structural integrity. The architect indicates not to worry. This is in part due to the special foundation detailing which extends concrete stem wall above the interior finished floor elevation. For aesthetic reasons, the exterior stone veneer was extended downward to the finished grade (or slightly below). See photographs below the architect’s message. Nick Haws, PE, LEED AP Vice President NORTHERN ENGINEERING 301 N. Howes Street, Suite 100 | Fort Collins, Colorado 80521 O: 970.221.4158 ext. 5414 | D: 970.568.5414 | M: 970.690.0927 nick@northernengineering.com | www.northernengineering.com From: Jon Rentfrow [mailto:jon@rentfrowdesign.com] Sent: Wednesday, October 12, 2016 3:55 PM Cc: Russell Baker <j.russell.baker@outlook.com> Subject: manhattan grade vs stone Russell, There is always a concern that too much soil/ multch will get wet and freeze, possibly creating some issues. The stone is applied as such that it is not acting as your water barrier to wall. I think the worse thing that could happen would be for the stone to pop off from water freezing behind or in the grout. In the end, I wouldn’t worry about it. My opinion… Jon R. Rentfrow Rentfrow Design, LLC 970-412-3400 jon@rentfrowdesign.com www.RentfrowDesign.com 3