HomeMy WebLinkAboutLot Certifications - 01/22/2020 (5)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
Accepted 1/22/2020 WL
B1810198
5024
5025
5026
5027
5028
-1
3
.
4
%
-7.4%
-10.9
%
-7.1%-7.5%
-1
0
.
4
%
-6
.
3
%
-11.9%
-3.2%
20.0'
30
.
0
'
25
.
0
0
'
73.1'
56.0'
12
3
.
0
'
63.8'
88
.
9
'
20.0'
90
.
6
'
970.420.0086
706 SOUTH COLLEGE, STE 203
FORT COLLINS, CO 80521
AVI@AVIPC.COM
Jan 21, 2020 - 11:49am
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11
0309
00 20'40'
SCALE 1" = 20'
SITE CERTIFICATION EXHIBIT:
THIS ASBUILT EXHIBIT ILLUSTRATES THE HORIZONTAL AND VERTICAL
INFORMATION OF THE HOUSE FOUNDATION WITH RESPECT TO THE
EXISTING PROPERTY BOUNDARIES. ELEVATION SHOWN IN NGVD29.
THE SURVEY WAS PERFORMED TO VALIDATE THE LOCATION AND
ELEVATION OF THE FOUNDATION, FINISH FLOOR, NO FILL IN THE
FLOODWAY ACCORDING TO THE SURVEY. FOUNDATION SURVEY WAS
COMPLETED IN MAY 2019. FLOODWAY SURVEY WAS COMPLETED DEC
2ND, 2019.
ANY ADDITIONAL DISTURBANCES CAUSED BY SNOW REMOVAL,
MAINTENANCE OF DRIVEWAY, ETC AFTER THIS SURVEY BY OTHERS IS
NOT THE RESPONSIBILITY OF AVI PROFESSIONAL CORPORATION.
LANDSCAPING WAS NOT COMPLETED AT THE TIME OF THE SURVEY AND
NOT ANTICIPATED TO OCCUR IN THE FLOODWAY.
AVI CHECKED AND COMPARED EXISTING ELEVATIONS PROVIDED BY
OTHERS TO THE ASBUILT ELEVATIONS.
SURVEY COMPLETED DECEMBER 16TH, 2019.
ASBUILT LOCATION OF OUTSIDE FOUNDATION
WALLS. SURVEY COMPLETED 5-16-2019.
FINISH FLOOR ELEVATION = 5027.0
(DESIGN ELEVATION = 5026.0)
TOP OF FOUNDATION ELEVATION = 5025.6
(DESIGN ELEVATION = 5025.0)
PROPERTY BOUNDARY (TYPICAL)
SETBACK LINE
FLOODWAY LIMITS
FLOODWAY LIMITS
NEWTON SINGLE FAMILY RESIDENCE
1520 WEST VINE
FF ELEV=5030.2 (NAVD 88)
24"x36"
CERTIFICATE OF LOT GRADING
FOR NEWTON SINGLE FAMILY
RESIDENCE
1520 WEST VINE
FORT COLLINS COLORADO
JANUARY 21ST, 2020
AIR CONDITIONING PAD
DOWNSPOUT LOCATION (TYPICAL)
DISCHARGE DIRECTION
GARAGE
FF ELEV=5028.5
(NAVD 88)
FUTURE
DECK AREA
CONTOUR ELEVATIONS IN NAVD 88
COVERED PORCH AREA
I, THOMAS KENT, A COLORADO REGISTERED PROFESSIONAL
ENGINEER, VERIFY THE GRADING AND DRAINAGE WAS ADEQUATELY
CONSTRUCTED TO MEET THE INTENT OF THE APPROVED DRAINAGE
AND GRADING PLAN AT THE TIME THE SURVEY WAS COMPLETED.
F:
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