HomeMy WebLinkAboutLot Certifications - 10/27/20171218 W. ASH, STE. A, WINDSOR, COLORADO 80550
TEL. 970.674.3300
October 25, 2017
Mr. Wes Lamarque
City of Fort Collins Utilities
700 Wood Street
Fort Collins, CO 80522
Re: Feeder Supply (359 Linden Street)
Certification of Lot Grading
Dear Wes,
Interwest Consulting Group was the design engineer for the Feeder Supply project which
is located at 359 Linden Street. The project consisted of an addition to the existing
building, patio installation and exterior grading, utility and storm drainage improvements.
The contractor, Dohn Construction, Inc., provided Interwest with an as built survey of the
lot, and requested that we provide a Certification for Lot Grading. Please accept this
letter and attachments as the Certification of Lot Grading for Feeder Supply (359 Linden
Street). Erika Schneider of Interwest Consulting visited the site on October 25, 2017 and
verified visually the surveyed items. The Certificate of Lot Grading form is attached.
The following items are checked “no” on the form and require additional explanation:
3.0.2 Foot of Tolerance – The southwest corner of the lot has a couple elevations
where the tolerance is greater than 0.2 foot. However, this area has fall/drainage
away from the building and to the pan.
4.Top of Foundation – Based on the finished floor of the structure, the ground is
lower than the building in all locations. There are areas of hard scape that are right
up to the siding, but with the commercial nature of the building, this is unavoidable.
5.Minimum Grade Away from Structure – There is fall/drainage away from the
building, but not 5% in all locations.
6.2% Drainage – The southwest corner of the lot was graded to drain in a pan that
directs flow northwest to the existing pan in the private alleyway on the west. The
pan appears to be at approximately 0.8%, but has positive drainage and is lower than
the finished floor of the building. The entire alley is concrete.
7.Swales –Not Applicable…there are no swales on this project.
11.Landscaping – Landscaping operations were underway when the site visit was
completed on 10-25-17. The duration to complete the landscaping is unknown.
12.Final Cleanup - The site still requires final cleanup. It is assumed this will take
place as the landscaping is installed.
Accepted
10/27/2017 WL
My assessment is that the items constructed are in general conformance with the
approved design. I have attached the as-built survey of the site. I have also attached the
as-built drawings of the Utility Plan and the Grading Plan as well as the Certification of
Lot Grading Form. We appreciate your time and consideration in reviewing this
certification. If you have any questions or need additional information please feel free to
call at any time (970) 460-8471.
Sincerely,
Michael Oberlander, P.E., LEED AP
Colorado Professional Engineer 34288
2/14/17 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 33% (3:1).
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
3621 Muskrat Creek Drive
Fort Collins, CO 80528
970-232-9645
www.WashburnSurveying.com
Sheet 1 of 5 Project #: 2016-0036 Date: October 25, 2017 Scale: 1"=10' Drawn: ABS
0'10' 20' 30'
SURVEYOR'S STATEMENT
I, CHAD R. WASHBURN, A PROFESSIONAL LAND SURVEYOR, IN THE STATE OF
COLORADO, HEREBY STATE THAT THIS LAND SURVEY PLAT WAS PREPARED BY ME
OR UNDER MY DIRECT SUPERVISION AND IS BASED MY KNOWLEDGE, INFORMATION
AND BELIEF. THIS SURVEY WAS PERFORMED IN ACCORDANCE WITH APPLICABLE
STANDARDS OF PRACTICE AND IS NOT A GUARANTY OR WARRANTY, EITHER
EXPRESSED OR IMPLIED.
CHAD R. WASHBURN, PROFESSIONAL LAND SURVEYOR
COLORADO PLS 37963
FOR AND ON BEHALF OF
WASHBURN LAND SURVEYING, LLC.
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City of Fort Collins, Colorado
UTILITY PLAN APPROVAL
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Traffic Engineer
Stormwater Utility
Water & Wastewater Utility
City Engineer
CHECKED BY:
APPROVED:
Environmental Planner
CHECKED BY:
CHECKED BY:
CHECKED BY:
CHECKED BY:
Date
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NOTE:
SANITARY / STORM CLEANOUT DETAIL
PLAN VIEW
GEOMEMBRANE LINER/CONCRETE CONNECTION DETAIL
PLANTER UNDERDRAIN SECTION
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By
ADS INLET
WITH GRATE
8" PVC
CORED TO
BACK OF EX
INLET
RECORD DRAWING
DATE:10-25-17
RECORDED DATA PER
SURVEY DATA FROM
WASHBURN LAND
SURVEYING (10-25-27)
AND SITE VISIT (10-25-17)
RECORD DRAWING
DATE:10-25-17
RECORDED DATA PER
SURVEY DATA FROM
WASHBURN LAND
SURVEYING (10-25-17)
AND SITE VISIT (10-25-17)