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Home My WebLink AboutLot Certifications - 10/28/2016 (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 October 28, 2016 Manhattan Townhomes 2nd 3800 Manhattan Avenue - Units A1 thru A7 B1508758 ; B1508759 ; B1508760 B1508761 ; B1508762 ; B1508763 ; B1508764 Fort Collins, CO 80526 97351-65-001; 97351-65-002; 97351-65-003 97351-65-004; 97351-65-005; 97351-65-006 97351-65-007 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 NWH NWH NWH NWH NWH NWH ✔ Nicholas W. Haws nick@northernengineering.com 970.568.5414 Northern Engineering 301 N. Howes Street, Suite 100 Fort Collins, CO 80525 10.28.16 (SEE NOTES ON ATTACHED AS-BUILT SURVEY REGARDING TRAIL) (THE LOTS BEING CERTIFIED ARE CLEAND, BUT OTHER PORTIONS OF THE SITE REMAIN ACTIVE) (SEE NOTES ON ATTACHED AS-BUILT SURVEY) 2 1 3 THESE TWO GARAGES ARE LOWER THAN THE APPROVED CIVIL PLANS. HOWEVER, DRAINAGE AWAY FROM THE GARAGES REMAINS SUFFICIENT. TRAIL TO BE ADDRESSED WITH OVERALL SITE DRAINAGE CERTIFICATION. 2 1 3 THE LANDSCAPE AREAS NEAR THE FRONT PORCHES OF LOTS 1-4 HAVE SLOPES RANGING FROM 2-4%. THIS IS CONSISTENT WITH THE APPROVED GRADING PLANS. AS THE ORIGINAL DESIGN ENGINEER AND ENGINEER OF RECORD, THESE SLOPES ARE NOT EXPECTED TO BE PROBLEMATIC SO LONG AS DOWNSPOUT EXTENSIONS ARE MAINTAINED IN A MANNER EQUIVALENT TO WHAT IS CURRENTLY PROVIDED. 2 1 1 1 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 2 3 1, 2, 3, 4, 5, 6, 7 Building A 20150072782 Nicholas W. Haws 10.27.16 NWH NWH NWH NWH NWH NWH N/A NWH (SEE NOTES ON ATTACHED AS-BUILT SURVEY) YES YES N/A YES N/A N/A N/A NO N/A N/A (SEE ATTACHED MEMO AND PHOTOGRAPHS) (SEE NOTES ON ATTACHED AS-BUILT SURVEY) (RECOMMEND COBBLE SPLASH PADS, OR SIMILAR, AT DOWNSPOUT TERMINATIONS TO MINIMIZE WASHOUT OF WOOD MULCH AND POTENTIAL EROSION)