HomeMy WebLinkAboutLot Certifications - 12/17/2020 (3)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
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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
105'-0" P.L.
45
'
-
0
"
P
.L
.
105'-0" P.L.
45
'
-
0
"
P
.L
.
N
= setback line
9'
-
0
"
12'-0"
3'-0" x 6'-8"
1'-11"
4'
-
4
"
20'-0"
6'
-
0
"
3'-0" x 6'-8"
35'-0"
7'
-
6
"
12
'
-
0
"
x
1
1
'
-
0
"
O
H
D
7'
-
6
"
Carp
ort
Gara
ge
12
'
-
0
"
Mike and Elsa Keys Residence
Grade Survey, As-Built
521 Maple St
Fort Collins CO 80521
970-222-7335
6'-0"
Key
New lower slope approach from street
New lowered section of sidewalk
New 1/12 slope sidewalk
New standard concrete
New stamped concrete
Existing sidewalk unaltered
7'-8"
Scale: 1/8"=1'-0"
13
'
-
0
"
Ma
p
l
e
St
c
u
r
b
/
g
u
t
t
e
r
13'-4"
14'-0"
3'
-
6
"
22'-8"
15'-0"
5'
-
0
"
Curbing
20'-0"
100.0'
finished
floor
level
4'
-
0
"
Ramp down to patio level
Ridge
Ri
d
g
e
Linden
Tree
9'-6"
Hi
s
t
o
r
i
c
al
g
r
a
d
e
t
o
a
ll
e
y
3'-6" (Open)
3'
-
7
"
(
O
pe
n
)
3'-6" (Open)
3'
-
7
"
(
O
pe
n
)
DECK
42
"
W
3R
x
1
2.
0
0
"
T
Up
16
'
-
0
"
12
'
-
0
"
13
'
-
0
"
4'-0"
15
'-
0
"
4'
-
3
"
36
'
-
3
"
Garage/carport mono-pour concrete
Ramp down
to patio
Planter area
Austian Pine on
berm 8" high
99.0'
Foundation
Top
28'-0"28'-0"28'-0"
98.1'
Swale
bott.
98.8'98.5'
Swale
bott.
98.3'
Swale
bott.
97.9'
Swale
bott.
97.8'
Swale
bott.
98.1'
96.8'
96.2'
96.0'
Incorrectly recorded
on "Proposed" plan
96.1'
97.2'
Swale
Bott.
97.5'
Sidewalk
Edge
Pr
v
c
y
Fe
n
c
e
w
/
w
o
od
r
e
t
a
i
n
i
n
g
98.6'
N.side
of fence
98.2'
Swale
bott.
27'-9"27'-9"27'-9"27'-4"
98.1'
Swale
bott.
97.9'
Swale
bott.
97.7'
Swale
bott.
98.9'
Floor and
Found. top
98.9'
Floor and
Found. top
98.5'
98.5'
98.4'
98.7'
Patio
before
step
98.7'
Patio
before
step
99.3'
Porch
at
step
Berm w/wood retaining
98.9'
Survey Date: 11-1-2020
97.4'
98.4'
98.6'
98.7'
Co
v
e
r
e
d
P
o
r
c
h
(
s
t
am
p
e
d
c
o
n
c
.
)
Surveyor: Mike Keys
Keys Properties and Construction
Signed:______________________
DRAINAGE MEMO REPORT
Job No. KEYM1-14457-A1
Date signed: December 1, 2016
This is a verified password
secured signature
Mike Keys
521 Maple St.
Ft. Collins, Colorado 80521
Re: Drainage at your garage at the above address, Ft. Collins
Dear Mr. Keys:
I reviewed the grading plans for the subject project. The
runoff will leave the lot via swales on the east and west sides,
and flow north out to the Maple St. curb and gutter. There will
be no adverse impacts to adjacent properties.
Thank you for retaining us to perform this structural
evaluation service. Please feel free to contact our office if you
have any further questions.
Very truly yours,
MARK BENJAMIN, PE, MSCE, SECB, CPHC
Certified in the practice of structural engineering
Certified Passive House Consultant
Copies: (1) verified password secured document. If submitting to
a building department, provide CJDE with an email contact so that
we may send it directly per most building department’s request.
Attachments: one
N
= setback line
Mike and Elsa Keys Residence
Grade Plan, Proposed
521 Maple St
Fort Collins CO 80521
970-222-7335
Key
New lower slope approach from street (~118 sf)
New lowered section of sidewalk (~48 sf)
New 1/12 slope sidewalk (~104 sf)
New standard concrete (~770 sf)
New stamped concrete (~490 sf)
Existing sidewalk unaltered
Scale: 1/8"=1'-0"
Curbing as necessary
98.8' (49")
98.8' (49")
100.0' (34.5")
finished
floor
level
(55") before
6-13/16" step risers (2)
12" width tread (1)
Ramp down to patio level
97.4' (65")
97.8' (60")
97.9' (59")
Ridge
Linden
Tree
98.1' (57.5")
98.7' (50")
98.3' (55")
98.2' (56")
97.8' (60")
96.1' (81")
95.7' (86")
96.6' (75.5")
98.8' (49")98.2' (56.5")
97.9' (59")
98.3'
98.1' (56.5")
98.8' (49")
Swale formed in conc.
Garage/carport mono-pour concrete (765 sf)
Ramp up to Carport
Planter area (~50 sf)
98.3' (55")
All new concrete incl. garage & carport 2295 sf
Minus existing removed, replaced
(old garage,walks/drive respectively) - 486 sf
Plus footprint additions to house + 395 sf
Total Impervious added to lot and R.O.W. ~2204 sf
95.9'(83.5")