HomeMy WebLinkAboutLot Certifications - 01/04/2021 (2)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
January 4, 2021 East Ridge Third Filing
402 Skyraider Way B2008254, B2008257, B2008256, B2008255, B2008253
Fort Collins, Colorado 8708165011, 8708165012, 8708165013, 8708165014, 8708165015
11, 12, 13, 14 and 15 Phase 1C | Block 2 20170085863, 20190031459
Herman Feissner
12.28.2020
HF
HF
HF
HF
Variations from 0.2 foot tolerance exist, see attached Plot Plan.
HF
As-built survey data is shown highlighted in BLUE on the attached Plot Plan.
HF
Downspout locations were observed and photographed during my site visit on December 28, 2020.
The as-built condition is adequate. Refer to the ILC for the downspout locations.
Air Conditioning (AC) pads were observed and photographed during my site visit on December 28, 2020.
The AC pads (and downspout locations) are shown on the Improvement Location Certificate (ILC).
HF
HF
SCALE: 1"=20'
0 10 20
Checked By:
Project No:
Drawn By:
Date:
5265 Ronald Reagan Blvd., Suite 210
Johnstown, CO 80534
970.800.3300 •GallowayUS.com
402 SKYRAIDER WAY, FORT COLLINS, CO
LOTS 11-15, BLOCK 2, EAST RIDGE THIRD FILING
CLIENT: HARTFORD HOMES
CERTIFICATION OF LOT GRADING
WBH
HCF
12/28/20
SCALE: 1"=30'
0 15 30
HFH000019.10
WH
RCR
03/31/20
402 Skyraider Way
402 Skyraider Way
4920
4925
4930
4935
4940
4945
4950
4955
4920
4925
4930
4935
4940
4945
4950
4955
69+0070+0071+0072+0073+0074+0075+0076+0077+0078+0079+0080+0080+50
23.71 LF -
18'' ADS
@ 0.50%
STA=77+15.01
INLET
C11
NYLOPLAST
15"
INLINE
DRAIN
W/
15"
PEDESTRIAN
GRATE
INLET
RIM=4946.51
INV
IN
(18"
N)=4937.87
INV
OUT
(18"
S)=4937.67
DEPTH=8.84
34.89 LF -
18'' ADS
@ 0.50%
86.24 LF -15''ADS @ 0.50%
STA=78+36.17
INLET
C13
NYLOPLAST
15"
INLINE
DRAIN
W/
15"
PEDESTRIAN
GRATE
INLET
RIM=4945.89
INV
IN
(15"
N)=4938.93
INV
OUT
(15"
S)=4938.73
DEPTH=7.16
28.42 LF -
15'' ADS
@ 0.50%
STA=78+64.55
INLET
C14
NYLOPLAST
15"
INLINE
DRAIN
W/
15"
PEDESTRIAN
GRATE
INLET
RIM=4947.63
INV
IN
(15"
N)=4939.27
INV
OUT
(15"
S)=4939.07
DEPTH=8.56
24.04 LF -
15'' ADS
@ 0.50%
STA=78+88.60
INLET
C15
NYLOPLAST
15"
INLINE
DRAIN
W/
15"
PEDESTRIAN
GRATE
INLET
RIM=4947.50
INV
IN
(15"
N)=4939.59
INV
OUT
(15"
S)=4939.39
DEPTH=8.11
34.89 LF -
15'' ADS
@ 0.50%
STA=70+08.50
EX
INLET
C2
15'
CDOT
TYPE
R
INLET
RIM=4941.33
INV
IN
(36"
N)=4934.01
INV
OUT
(36"
S)=4934.01
DEPTH=7.32
23.83 LF - EXIST. 36'' RCP @ 0.20%
STA=71+31.50
INLET
C3
TRIPLE
NO.
16
INLET
RIM=4943.12
INV
IN
(24"
N)=4934.25
INV
OUT
(36"
S)=4934.25
DEPTH=8.87
47.01 LF -
24'' RCP
@ 0.20%
STA=71+78.51
SDMH
C4
6'Ø
MH
RIM=4944.10
INV
IN
(24"
E)=4934.35
INV
OUT
(24"
S)=4934.35
DEPTH=9.76
67.00 LF -24''RCP @
0.20%
125.65 LF -24''RCP @ 0.40%
STA=90+00.00
(STORM
C6)
STA=74+21.13
STORM
C
SDMH
C6
4'Ø
MH
RIM=4946.04
INV
IN
(18"
W)=4935.68
INV
IN
(18"
N)=4935.68
INV
OUT
(24"
S)=4935.18
DEPTH=10.85
181.75 LF -18''RCP @ 0.40%
STA=100+00.00
(STORM
C7)
STA=76+02.88
STORM
C
SDMH
C7
4'Ø
MH
RIM=4945.78
INV
IN
(18"
N)=4936.60
INV
IN
(15"
S)=4936.85
INV
OUT
(18"
E)=4936.40
DEPTH=9.37
STA=77+49.90
INLET
C12
NYLOPLAST
15"
INLINE
DRAIN
W/
15"
PEDESTRIAN
GRATE
INLET
RIM=4945.30
INV
IN
(15"
N)=4938.30
INV
OUT
(18"
S)=4938.05
DEPTH=7.25
STA=79+23.49
INLET
C16
NYLOPLAST
15"
DRAIN
BASIN
W/
15"
PEDESTRIAN
GRATE
INLET
RIM=4945.89
INV
OUT
(15"
S)=4939.77
DEPTH=6.12
PROPOSED
GRADE
EXISTING
GROUND
STA=76+26.59
INLET
C8
NYLOPLAST
15"
INLINE
DRAIN
W/
15"
PEDESTRIAN
GRATE
INLET
RIM=4945.32
INV
IN
(18"
N)=4936.83
INV
OUT
(18"
S)=4936.72
DEPTH=8.60
37.12 LF -
18'' ADS
@ 0.50%
STA=76+63.71
INLET
C9
NYLOPLAST
15"
INLINE
DRAIN
W/
15"
PEDESTRIAN
GRATE
INLET
RIM=4945.53
INV
IN
(18"
N)=4937.22
INV
OUT
(18"
S)=4937.02
DEPTH=8.51
27.25 LF -
18'' ADS
@ 0.50%
STA=76+90.96
INLET
C10
NYLOPLAST
15"
INLINE
DRAIN
W/
PEDESTRIAN
GRATE
INLET
RIM=4946.63
INV
IN
(18"
N)=4937.55
INV
OUT
(18"
S)=4937.35
DEPTH=9.28
24.04 LF -
18'' ADS
@ 0.50%
100 yr
HGL
4'
49.97 LF -
24'' RCP
@ 0.40%
STA=80+00.00
(STORM
C5A)
STA=72+95.48
STORM
C
SDMH
C5A
4'Ø
MH
RIM=4945.84
INV
IN
(18"
E)=4935.18
INV
IN
(24"
N)=4934.68
INV
OUT
(24"
S)=4934.68
DEPTH=11.16
STA=72+45.51
SDMH
C5
6'Ø
MH
RIM=4945.11
INV
IN
(24"
N)=4934.48
INV
OUT
(24"
W)=4934.48
DEPTH=10.63
99.17 LF -36''RCP @ 0.20%
STA=70+32.33
TIE
TO
EXISTING
C
CONTRACTOR
TO
FIELD
VERIFY
LOCATION
AND
ELEVATION
OF
EXISTING
STORM
DRAIN
STUB
INV
(36")=4934.06
4943.02
47.54
4934.20
4934.17
4943.99
4934.14
4934.19
0.04%
4943.99
4934.54
4934.49
71.22
0.48%
4945.59
4935.35
4934.81
4934.70
50.5
0.32%
4945.52
4935.69
4935.66
4935.22
0.33%124.8
4945.24
4945.28
4945.44
4946.74
4946.46
4945.79
4945.47
4947.36
4945.90
183.4
22.238.527.525.625.723.834.8
4945.58
4938.10
4937.90
89.29 0.44%
4938.67
4938.47
4939.78
4939.03
4938.77
1.32%0.80%0.39%
4937.86
4937.65
31.59
0.13%0.20%1.09%
4937.60
4937.44
0.49%0.54%
4937.14
4936.94
4936.75
4936.75
0.38%
4936.63
4936.83
4936.38
4939.32
4939.22
5265 Ronald Reagan Blvd., Suite 210
Johnstown, CO 80534
970.800.3300 O
www.gallowayUS.com
C 2017. Galloway & Company, Inc. All Rights Reserved
Date:
Drawn By:
Project No:
Checked By:
H:\Hartford
Homes\CO,
Timnath
-
HFHLV0001.02_Timberline
&
Vine
Multi-Family\CADD\4-As
Built\Site\HFHLV1.02_SD03_S_as-built-2.dwg
-
Kyle
Pollock
-
3/20/2019
HFHLV0001.02
11.10.2017
Init.#Issue / DescriptionDate
EAST
RIDGE
THIRD
FILING
MON
TAGE
TOWNH
OMES
FORT
COLLINS,
CO
THESE PLANS ARE AN INSTRUMENT OF
SERVICE AND ARE THE PROPERTY OF
GALLOWAY, AND MAY NOT BE DUPLICATED,
DISCLOSED, OR REPRODUCED WITHOUT
THE WRITTEN CONSENT OF GALLOWAY.
COPYRIGHTS AND INFRINGEMENTS WILL
BE ENFORCED AND PROSECUTED.
COPYRIGHT
EAST RIDGE HOLDINGS
4801 Goodman Rd.
Timnath, CO 80547
970.674.1109
CAUTION - NOTICE TO CONTRACTOR
1. ALL UTILITY LOCATIONS SHOWN ARE BASED ON MAPS
PROVIDED BY THE APPROPRIATE UTILITY COMPANY AND
FIELD SURFACE EVIDENCE AT THE TIME OF SURVEY AND IS TO
BE CONSIDERED AN APPROXIMATE LOCATION ONLY. IT IS THE
CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY THE FIELD
LOCATION OF ALL UTILITIES, PUBLIC OR PRIVATE, WHETHER
SHOWN ON THE PLANS OR NOT, PRIOR TO CONSTRUCTION.
REPORT ANY DISCREPANCIES TO THE ENGINEER PRIOR TO
CONSTRUCTION.
2. WHERE A PROPOSED UTILITY CROSSES AN EXISTING UTILITY,
IT IS THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY
THE HORIZONTAL AND VERTICAL LOCATION OF SUCH
EXISTING UTILITY, EITHER THROUGH POTHOLING OR
ALTERNATIVE METHOD. REPORT INFORMATION TO THE
ENGINEER PRIOR TO CONSTRUCTION.
DateCity Engineer
Date
Date
Date
Date
Stormwater Utility
Parks & Recreation
Traffic Engineer
Date
APPROVED:
CHECKED BY:
CHECKED BY:
CHECKED BY:
CHECKED BY:
CHECKED BY:
Water & Wastewater Utility
City of Fort Collins, Colorado
UTILITY PLAN APPROVAL
Environmental Planner
SD05
JEP
AGM
( IN FEET )
1 inch = ft.
0 Feet5050
50
100 150
KEYMAP
TIMBERLINE
ROAD
ROTATION: 90°
STA:
SCALE: H: 1"=V: 1"=
toPRIVATE
STORM DRAIN C
70+00.00 79+23.49
50 5
PROPOSED RIGHT-OF-WAY
EXISTING WATER MAIN
PROPOSED WATER MAIN
PROPOSED STORM SEWER
LEGEND:
T T T
EXISTING STORM SEWER
EXISTING GAS
EXISTING TELEPHONE
EXISTING SANITARY SEWER
PROPOSED STORM INLET
PROPOSED CURB & GUTTER
PROPOSED SANITARY SEWER
PROPOSED FIRE HYDRANT
PROPOSED LOTLINE
EASEMENT LINE
PROPERTY BOUNDARY
E E EPROPOSED ELECTRIC
GAS
8''W
8''SS
8''SS
8''W
PROPOSED MANHOLE
NOTES:
1. ALL UTILITY LOCATIONS SHOWN ARE BASED ON MAPS PROVIDED BY THE APPROPRIATE UTILITY COMPANY
AND FIELD SURFACE EVIDENCE AT THE TIME OF SURVEY AND IS TO BE CONSIDERED AN APPROXIMATE
LOCATION ONLY. IT IS THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY THE LOCATION OF ALL
UTILITIES, PUBLIC OR PRIVATE, WHETHER SHOWN ON THE PLANS OR NOT, PRIOR TO CONSTRUCTION.
REPORT ANY DISCREPANCIES TO THE ENGINEEER PRIOR TO CONSTRUCTION.
2. JOINTS ON ELLIPTICAL PIPES SHALL BE TONGUE AND GROOVE WITH FLEXIBLE JOINT SEAL COMPOUND PER
THE PIPE MANUFACTURER STANDARDS AND AS APPROVED BY CITY INSPECTOR.
3. PIPE LENGTHS ARE CALCULATED FROM THE CENTER OF MANHOLES AND INLET BOX STRUCTURES. LAYING
LENGTH INCLUDES FLARED END SECTIONS.
4. RCP SHALL BE CLASS III OR GREATER. PIPE MATERIAL, BEDDING, AND INSTALLATION WITHIN PUBLIC
RIGHTS-OF-WAY SHALL BE GOVERNED BY THE CITY OF FORT COLLINS. ALTERNATES (SUCH AS ADS N-12 OR
HP SANITITE) OUTSIDE OF THE R.O.W. SHALL BE APPROVED IN ADVANCE BY THE ENGINEER. ALL JOINTS
SHALL BE 'WATERTIGHT' USING APPROPRIATE GASKETS OR JOINT WRAPS (PER ASTM C443 FOR RCP AND
PER ASTM F477 / D3212 FOR PLASTIC PIPE).
5. ALL STORM MANHOLES LOCATED IN SIDEWALKS AND TRAILS SHALL HAVE PEDESTRIAN RATED LIDS.
6. MANHOLE DIAMETERS SHOWN ARE PER CITY STANDARD DETAIL D-3. CONTRACTOR SHALL VERIFY THAT
MANHOLE DIAMETERS ARE SUFFICIENT FOR INSTALLATION (i.e., WITHIN PRE-CASTER'S TOLERANCES, ETC.).
7. SEE DETAILS FOR RIPRAP PAD SIZING.
8. PROVIDE WATER TIGHT JOINTS PER ASTM C443 AT ALL CIRCULAR STORM PIPE.
9. MANHOLES SHALL BE SHAPED UNLESS OTHERWISE NOTED.
10. SANITARY SEWER INVERTS ARE SHOWN FOR INFORMATION ONLY. SEE SHEETS SS01-SS06 FOR FINAL
ELEVATIONS.
11. WATERLINE INVERTS ARE SHOWN FOR INFORMATION ONLY. THE CONTRACTOR SHALL VERIFY THAT 18"
VERTICAL SEPARATION IS MAINTAINED BETWEEN WATER LINE AND STORM PER ELCO STANDARD DETAILS.
12. SEE EXISTING CONDITIONS SHEETS FOR EXISTING BOUNDARY CORNER COORDINATES.
13. ALL STORM MANHOLE LIDS TO BE ROTATED OUT OF CURB AND GUTTER, CROSSPANS AND SIDEWALKS.
14. MANHOLE RIM ELEVATION ARE TO BE ADJUSTED TO 1
4" BELOW FINISHED GRADE IN PAVED AREAS.
SD05
AB 09/07/18 Record Drawings JEP
INV OUT (24" S)=4912.20 4912.48
REPRESENTS RECORD SURVEY DATA
PROVIDED BY NORTHERN ENGINEERING
DATED: SEPTEMBER 7, 2018
49
4
6
.
0
6
49
4
7
.
4
6
49
4
7
.
6
4
49
4
5
.
9
0
AS-BUILT PER
12/28/2020 SURVEY (TYP.)