HomeMy WebLinkAboutLot Certifications - 11/19/2021 (4)
Date: 2021-11-17
Address: 2000 E Horsetooth Road
Fort Collins, CO 80525
Subdivision: Platte River Power Authority Headquarters 2nd Filing
Permit Application #: B2000129
Larimer County Parcel #: 8730461901
Lot: 1 Block: 1 Larimer County Reception #: 20180040298
(on development agreement)
I, (print) Kevin Brazelton , 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).
No Yes
2. Certification includes the attached as-built survey dated 11/12/2021 (must be within 60 No Yes
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 Grading/Stormwater Certification Accepted
Quarter points along each lot line (not more than 50 feet apart) (Certificate of Occupancy Released)
Break points/high points
Swales
Berms
Retaining walls
Air conditioning pads
Window wells
Any other appurtenance(s) within an easement
Accepted by: Stephen Agenbroad
Date: 11/19/2021
□ Escrow was held for CO and is now released
3. All elevations are within a 0.2 foot tolerance of the approved grading plan.
(Minor deviations only as shown on the attached record drawing. No negative impacts are anticipated due to deviations. UCDG-KRB) 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
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)
□
□
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:
No Yes
No Yes
No Yes
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
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: Kevin Brazelton
Email: Kevin.Brazelton@unitedcivil.com
Phone: 970.530.4044
Company: United Civil Design Group LLC
Address: 19 Old Town Square #238
Fort Collins, CO 80524
PE Stamp
Sign and date
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
2/14/17 Page 2
11.17.21
49
5
7
.
9
4
4951.77
4954.63
SS CO
4953.12
4953.12
4952.47
4952.52
4952.56
4951.92
4955.03 RIM = 4956.77 4953.38 4952.46 4952.08
4955.86
4956.50
4955.47
4955.99
4956.18
4954.53
4955.49
4955.19
4954.79
4954.81
4953.70
4950.14
4949.66
4949.55
4953.32
4949.62
4953.32
4949.55
4953.62
4953.99
4955.23
4952.21
4956.95 4956.99
4957.20
4956.58
SS CO
FG = 4956.77
4957.04
4956.01
4955.05
4954.96
4950.46
4950.39
4950.42
STM FES
INV.= 4948.97
4949.68
4949.60
4955.47
4957.40
SS DBL CO
North RIM = 4957.90
South RIM =4957.90
4957.85
4957.49
4957.52
4955.63
10" Drain Basin
RIM = 4956.34
4950.62
4955.83
G
FFE - 4957.94 FFE - 4957.98
STM DBL CO
West RIM = 4957.56
East RIM =4957.42
W INV.= 4953.33
S INV. = 4953.01
E INV. = 4951.47
4955.02
Headwall
INV.= 4951.16
4949.49
4955.78
4957.95
FFE - 4958.03
STM Roof Drain
RIM - 4957.94
4957.98
STM CO
RIM - 4956.72
STM DBL CO
West RIM = 4957.77
East RIM = 4957.66
FFE - 4958.03
4955.75
4955.85
4950.98
4950.76
STM FES
INV.= 4949.69
4950.61
4950.05
4950.02
4950.01
4955.57
4956.70 4956.68
4956.63
4956.58
4956.58
4956.50
4955.78
4955.68
4954.96
4955.23
4950.66
4955.51
4954.49
4954.75
4955.93
4955.39
4957.01
4957.10
4957.14
4957.25
4956.94
4957.17
General Notes:
1. The Lineal Unit Of Measure For This Survey Is U.S. Survey Feet.
2. All Information Provided Pertains To The Platte River Power Authority Energy Engagement Center Project.
Geodetics:
1. Project Datum: NAVD 88
2. Vertical Control: City Of Fort Collins 17-92 - 300 Feet Of The Southwest Corner of East
Drake Road And Timberline Road, In The Top Of An Irrigation Structure. Elevation =
4938.70.
3. Basis Of Bearings: Assuming The South Line Of The Southeast Quarter Of Section 30, T.
7N., R.68W., As Bearing South 89°53'04" West Being A Grid Bearing Of The Colorado
State Plane Coordinate System, North Zone, North American Datum 1983-2011, A
Distance Of 2653.20 Feet With All Other Bearings Contained Herein Relative Thereto.
Location:
Platte River Power Authority Headquarters, Lot 1 Of Platte River
Power Authority Headquarter P.U.D. And A Portion Of Lot 2,
Collindale Industrial Park, Situate In The Southeast Quarter Of
Section 30, Township 7 North, Range 68 West Of The 6th Principal
Meridian, City of Fort Collins, County Of Larimer, State Of
Colorado.
0 20 40
Feet
BIM & Survey Department
Platte River Power Authority - Energy
Engagement Center
2000 East Horsetooth Road, Fort Collins, CO 80525
Platte River Power Authority
Energy Engagement Center
As-Built Drawing
Project Number:
Date: 12 NOV 2021
Designed By: SLF
Reviewed By: PSS
V-001
Scale: 1" = 20'-0"
UNITED CIVIL
Design Group LLC
Civil Engineering &
Consulting
1501 Academy Ct.
Ste. 203
Fort Collins, CO 80524
(970) 530-4044
www.unitedcivil.com
C4.43
75
U16014
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KEYMAP
LEGEND
EXISTING EASEMENT PROPOSED 6" WATER
EXISTING PROPOSED 8" WATER RIGHT-OF-WAY LINE
EXISTING LOT LINE PROPOSED WATER SERVICE
EXISTING WATER PROPOSED FIRE SERVICE
EXISTING SANITARY PROPOSED 8" SANITARY
EXISTING STORM SEWER PROPOSED SANITARY SERVICE
EXISTING GAS PROPOSED STORM SEWER
EXISTING ELECTRIC LIMITS OF DISTURBANCE
EXISTING TELECOM FIRE HYDRANT
EXISTING FIBER OPTIC
WATER LINE BENDS
THRUST BLOCK
GATE VALVE
6 STORM DRAIN MH
STORM DRAIN INLET
FLARED END SECTION
NOTES
1. EXISTING UNDERGROUND AND OVERHEAD PUBLIC AND PRIVATE UTILITIES AS SHOWN ARE INDICATED
ACCORDING TO THE BEST INFORMATION AVAILABLE TO THE ENGINEER. THE ENGINEER DOES NOT GUARANTEE
THE ACCURACY OF SUCH INFORMATION. EXISTING UTILITY MAINS AND SERVICES MAY NOT BE STRAIGHT LINES
OR AS INDICATED ON THESE DRAWINGS. THE CONTRACTOR SHALL BE RESPONSIBLE TO CALL ALL UTILITY
COMPANIES (PUBLIC AND PRIVATE) PRIOR TO ANY CONSTRUCTION TO VERIFY EXACT UTILITY LOCATIONS.
2. THE CONTRACTOR SHALL PROTECT ALL EXISTING FEATURES THAT ARE NOT TO BE REMOVED ADJACENT TO THE
CONSTRUCTION AREA INCLUDING, BUT NOT LIMITED TO, PAVEMENT, PRIVATE FENCES, ABOVE GROUND OR
UNDERGROUND UTILITIES, STRUCTURES, AND UNDERGROUND FOUNDATIONS. THE CONTRACTOR SHALL BE
RESPONSIBLE FOR ANY DAMAGE THAT SHOULD OCCUR TO ANY ON-SITE, OFF-SITE, PUBLIC OR PRIVATE FACILITY
OR FEATURE AS A RESULT OF THE CONSTRUCTION PROCESS FOR THIS PROJECT.
3. THE EXISTING HEADQUARTERS, ENGINEERING/OPERATIONS (E/O), AND COMMUNICATIONS BUILDINGS SHALL
REMAIN FULLY OPERATIONAL UNTIL SUCH TIME THAT PLATTE RIVER POWER AUTHORITY NOTIFIES THE
CONTRACTOR THAT THE EXISTING BUILDINGS (AND SUPPORTING UTILITIES) MAY BE DEMOLISHED.
4. ALL STORM SEWER CONSTRUCTION SHALL BE PER CITY OF FORT COLLINS STANDARD CONSTRUCTION
SPECIFICATIONS, LATEST EDITION.
5. ALL PIPE LENGTHS ARE FROM CENTER TO CENTER OF ADJACENT STRUCTURES UNLESS OTHERWISE NOTED.
6. ROOF DRAINS SHOWN AS POLYPROPYLENE (PP) SHALL BE HP STORM SEWER BY ADS OR APPROVED EQUAL.
WATER TIGHT JOINTS ARE TO BE USED ON ALL STORM DRAINAGE PIPE.
7. MAINTAIN 10' HORIZONTAL AND 18" VERTICAL MINIMUM SEPARATION BETWEEN ALL SANITARY SEWER & WATER
MAINS & SERVICES. SHOULD THE WATER LINE CROSS UNDER EITHER STORM DRAIN OR SANITARY SEWER, THE
STORM OR SANITARY SHALL BE CONCRETE ENCASED FOR 10' ON EITHER SIDE OF THE CROSSING.
8. THE PLUMBING CONTRACTOR SHALL TERMINATE THE ROOF DRAIN LATERALS 5.0-FEET OUTSIDE OF BUILDING.
EXACT LOCATIONS (HORIZONTAL AND VERTICAL) OF THE ROOF DRAIN CONNECTIONS TO DOWNSPOUT OR
BUILDING ROOF LEADER CONNECTIONS SHALL BE COORDINATED WITH THE ARCHITECTURAL DRAWINGS.
CLEANOUTS SHALL BE PLACED AT THE CONNECTION OF EACH ROOF DRAIN LATERAL TO BUILDING ROOF
LEADERS.
9. REFER TO THE ARCHITECTURAL DRAWINGS FOR DETAILS REGARDING THE CONNECTIONS FROM DOWNSPOUTS
TO UNDERGROUND ROOF DRAIN PIPING.
10. CONNECTIONS OF PROPOSED HDPE STORM SEWER TO BUILDING ROOF LEADERS OF DISSIMILAR SIZES AND/OR
MATERIALS SHALL BE MADE USING APPROPRIATE REDUCERS AND/OR COUPLINGS.
11. ROOF DRAINS LATERALS TO BE CONNECTED DIRECTLY TO PROPOSED PP STORM SEWER SHALL BE CONNECTED
USING MANUFACTURED TEES.
12. CLEANOUTS LOCATED WITHIN ALL PAVED AREAS SHALL BE TRAFFIC RATED.
APPROVED:
CHECKED BY:
CHECKED BY:
CHECKED BY:
CHECKED BY:
0 #' ##' ##' CHECKED BY:
SCALE: 1" = ##'
G
1.35%
5'x5' TYPE L RIPRAP PAD
PHASE 1 ROOF DRAIN SYSTEM
APPROVED:
CHECKED BY:
CHECKED BY:
CHECKED BY:
CHECKED BY:
CHECKED BY:
EXISTING 10'
UTILITY ESMT.
UNITED CIVIL
Design Group LLC
COMMUNICATIONS
BUILDING
FFE=4954.50 (EXISTING)
PHASE 1 OUTLET
STRUCTURE
PHASE 1 CONCRETE PAN
ACCESS EASEMENT
WIDTH VARIES
KEYMAP
LEGEND
Civil Engineering &
Consulting
1501 Academy Ct.
Ste. 203
Fort Collins, CO 80524
(970) 530-4044
www.unitedcivil.com
LIMITS OF DISTURBANCE
EXISTING PROPERTY LINE
EXISTING R.O.W LINE
DRAINAGE EASEMENT
EXISTING EASEMENT
1 EXISTING STRIPING
REGRADE POND ADJACENT TO FENCE
CONNECT TO PHASE 1
CONCRETE PAN
CONNECT TO EXISTING
CURB, GUTTER & SIDEWALK
EXISTING FENCE
EXISTING CHAIN LINK FENCE
PROPOSED SECURITY FENCE
TRANSITION OVER 10' FROM 42" ROLLOVER EXISTING CURB & GUTTER
CURB & GUTTER TO STANDARD 30" VERTICAL
CURB & GUTTER PROPOSED CURB & GUTTER 6
INFLOW CURB & GUTTER
T CURB & GUTTER TRANSITION
GRADING DETAIL "A" (SEE SHEET C5.22)
6 PROPOSED STORM
42" ROLLOVER CURB & GUTTER
(SEE DETAILS)
5124
5124
PROPOSED FLOWLINE
PROPOSED 1' CONTOUR
EXISTING 1' CONTOUR
APPROXIMATE PHASE 2
GRADING LIMITS
(SEE NOTE 8)
CONNECT TO EXISTING
CURB, GUTTER & SIDEWALK GRADE BREAK
STORM SEWER
STORM INLET
HQ BUILDING
FFE=4958.00
12" CURB HEAD
BUILDING ADDITION
FFE=4958.00
PROPOSED 2'
CONCRETE PAN
PROPOSED SPOT ELEVATION
FFE=FINISHED FLOOR ELEV
FG=FINISHED GRADE
HP=HIGH POINT
LP=LOW POINT
SG=SUBGRADE
TBC= TOP BACK OF CURB
TOW=TOP OF WALL
EXISTING GRADE
PROPOSED SLOPE
PHASE 1 ROOF DRAIN NOTES
GRADING DETAIL "B" (SEE SHEET C5.22)
PROPOSED POND
PERMANENT WATER SURFACE = 4955.00
TOP OF BANK = 4956.50
TOP OF CONCRETE EDGE = 4956.00
BOTTOM OF POND = 4943.00
PROPOSED STORM SEWER
PHASE 1 POND
EMERGENCY OVERFLOW
SPILLWAY ELEV = 4955.5
PHASE 1 POND OUTLET
20' DRAINAGE ESMT.
PHASE 1 STORM SEWER
MEMORIAL GARDEN
(SEE LANDSCAPE PLANS)
EXISTING BIOSWALE
R.O.W.
WIDTH VARIES
EXISTING CURB CUT
1. EXISTING UNDERGROUND AND OVERHEAD PUBLIC AND PRIVATE UTILITIES AS SHOWN ARE INDICATED
ACCORDING TO THE BEST INFORMATION AVAILABLE TO THE ENGINEER. THE ENGINEER DOES NOT GUARANTEE
THE ACCURACY OF SUCH INFORMATION. EXISTING UTILITY MAINS AND SERVICES MAY NOT BE STRAIGHT LINES
OR AS INDICATED ON THESE DRAWINGS. THE CONTRACTOR SHALL BE RESPONSIBLE TO CALL ALL UTILITY
COMPANIES (PUBLIC AND PRIVATE) PRIOR TO ANY CONSTRUCTION TO VERIFY EXACT UTILITY LOCATIONS.
2. THE EXISTING HEADQUARTERS, ENGINEERING/OPERATIONS (E/O), AND COMMUNICATIONS BUILDINGS SHALL
REMAIN FULLY OPERATIONAL UNTIL SUCH TIME THAT PLATTE RIVER POWER AUTHORITY NOTIFIES THE
CONTRACTOR THAT THE EXISTING BUILDINGS (AND SUPPORTING UTILITIES) MAY BE DEMOLISHED.
3. SPOT ELEVATIONS SHOWN ARE TO FLOWLINE OR EDGE OF WALK UNLESS OTHERWISE NOTED.
4. ALL DISTURBED AREAS NOT PAVED SHALL BE REVEGETATED PER THE LANDSCAPE PLANS.
5. NOTE THAT THE FINISHED FLOOR ELEVATIONS AS SHOWN ON THIS DRAWING CORRESPONDS TO ELEVATION
100'-0" AS SHOWN ON THE ARCHITECTURAL PLANS. FOR FLEET PARKING GARAGE A ARCHITECTURAL ELEVATION
OF 100'-0" IS REFERENCED TO THE SOUTH END OF THE BUILDING. REFER TO NOTE 8. FOR FLEET PARKING
GARAGE B ARCHITECTURAL ELEVATION OF 100'-0" MATCHES THE FINISHED FLOOR OF THE MAINTENANCE SHOP.
6. THE FINISHED FLOOR ELEVATIONS SHOWN ARE THE MINIMUM ELEVATIONS REQUIRED FOR PROTECTION FROM
THE 100-YEAR STORM.
7. CONTRACTOR SHALL NOTE THAT OVEREXCAVATION IS REQUIRED UNDER BUILDING PADS. CONTRACTOR SHALL
REFER TO THE GEOTECHNICAL REPORT PROVIDED BY TERRACON CONSULTANTS FOR MORE INFORMATION.
8. VERTICAL STEPS OF THE FLEET PARKING GARAGE 'A' SHALL BE LOCATED AT BUILDING COLUMNS. COORDINATE
THE CENTER OF THE BUILDING COLUMNS WITH THE ARCHITECTURAL PLANS.
9. REFER TO CONSTRUCTION DETAILS SHOWN ON SHEET C7.39 FOR ADDITIONAL INFORMATION REGARDING POND
GRADING AND LINER.
EXISTING CURB CUT
107.5' RIGHT-OF-WAY 50' RIGHT-OF-WAY
APPROXIMATE EXISTING
IRRIGATION PIPE
10' ACCESS EASEMENT
EAST HORSETOOTH ROAD
SOUTHEAST CORNER
S30, T.7N., R68W C5.20
75
0 15' 30' 60'
SCALE: 1" = 30'
U16014
THESE RECORD DRAWINGS, PRODUCED BY UNITED CIVIL DESIGN
GROUP LLC, ARE BASED ON FIELD INFORMATION GATHERED BY
OTHERS. UNITED CIVIL DESIGN GROUP LLC, ASSUMES NO LIABILITY
FOR THE ACCURACY OR COMPLETENESS OF THIS INFORMATION.
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APPROVED:
CHECKED BY:
CHECKED BY:
CHECKED BY:
CHECKED BY:
CHECKED BY:
UNITED CIVIL
Design Group LLC
Civil Engineering &
Consulting
1501 Academy Ct.
Ste. 203
Fort Collins, CO 80524
(970) 530-4044
www.unitedcivil.com
C5.22
75
U16014
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EXISTING CURB & GUTTER LEGEND
EXISTING R.O.W LINE
EXISTING EASEMENT
EXISTING STRIPING
EXISTING FENCE
1' CURB CHANNEL EXISTING CHAIN LINK FENCE
PROPOSED SECURITY FENCE
PROPOSED CURB & GUTTER
5124 PROPOSED 1' CONTOUR
5124 EXISTING 1' CONTOUR
GRADE BREAK
STORM SEWER
STORM INLET
EXISTING GRADE
PROPOSED SLOPE
6
EXISTING DRAIN BASIN TO REMAIN 3. SPOT ELEVATIONS SHOWN ARE TO FLOWLINE OR EDGE OF WALK UNLESS OTHERWISE NOTED.
(3) 4" RISERS
PHASE 1 ROOF DRAIN GARAGE B ARCHITECTURAL ELEVATION OF 100'-0" MATCHES THE FINISHED FLOOR OF THE MAINTENANCE SHOP.
0 5' 10' 20'
SCALE: 1" = 10'