HomeMy WebLinkAboutLot Certifications - 01/12/2021 (4)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
1/12/2021 Mountain's Edge
2411 Crown View Drive B2002795, B2002796, B2002797, B2002798, B2002799
Fort Collins, CO 80526 9721358001, 9721358002, 9721358003, 9721358004, 9721358005
1-5 12 20180053810
Stephanie Thomas
1/12/2021
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A very limited area of the building along the SW corner has a 4.5" of exposed foundation.
There is sufficient grade away from the building in this area. This causes no engineering
concern.
The swale along the south side of the building has a 1.2% grade, this
is sufficient as it is only draining 2 lots.
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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
TNT Landscaping
4
Stephanie Thomas
stephanie@northernengineering.com
970-568-5412
Northern Engineering
301 N. Howes Street Unit 100
Fort Collins, CO 80521
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1/12/2021
January 12, 2021
Mr. Dan Mogen
City of Fort Collins Utilities
281 N. College Avenue
Fort Collins, CO 80521
RE: Mountain’s Edge – Block 12 - Certification of Lot Grading
Dear Mr. Mogen,
Please find the attached Certification of Lot Grading for Block 12, Mountain’s Edge (Address:
2411 Crown View Drive).
This letter is provided to document the deviations from the approved grading plans.
The following items are deviations from the approved grading plans:
1. The top of foundation was poured 0.23’ higher than the design. The finished floor was
expected to be the same as the top of foundation due to the hung joists. Instead the
finished floor was laid 0.28’ higher than the top of foundation. Due to these changes
during construction the finished floor is 0.51’ higher than designed.
2. The garage pads were designed to be 8” below the top of foundation. It was expected that
there would be steps from the garage into the units. At construction these pads were
poured to be ADA accessible into the unit. As such, these pads were poured higher than
planned. The driveway was adjusted to match the garage pad and the top of curb. Due
to the increase in finished floor, the driveway grades are substantially different from the
design. The designed driveways had a maximum grade of 9.2%. The as-built driveways
have a maximum grade of 18% for the Lot 5 and a 17% grade for Lot 4. This is above the
recommended 14% per FHA. This does cause engineering concern as it is unclear whether
low clearance vehicles will have trouble getting into the garage. This issue has been raised
with the builder. The builder has determined that there is no cause for concern.
3. The swale on the south side of the building has an average grade of 1.2%. This is sufficient
per the Fort Collins lot grading checklist.
Disregarding the driveway grades, the grading and drainage improvements around the building
meet the intention of the original plans and design.
Page 2
Please do not hesitate to contact me at 970.568.5412 or stephanie@northernengineering.com.
Sincerely,
Northern Engineering Services, Inc.
Stephanie Thomas
Project Manager
Page 3
Attachments:
As-Built Elevations for Drainage Certificate – Lots 1-5, Block 12, Mountain’s Edge
Approved Mountains Edge Grading Plans