HomeMy WebLinkAboutLot Certifications - 12/09/2008City of Fort Collins
Utilities
electric • stormwater e wastewater • water
CERTIFICATION OF LOT GRADING
Pursuant to City Code § 26-544 and
City Land Use Code § 3.2.2 (e)
Date: tKC I l/0
Permit Application No. ��� /p/
Address: 12RA14Y 1 Yj
Lot: 1 Block:
Subdivision: ff12 :9tfl m tints 54bai'tJ1S�iy7
(,(Print) Kevin E. Forbes. P.E. , a Colorado registered professional
engineer, have personally inspected the above referenced property in the City of Fort Collins, Colorado,
and verify that construction of all stormwater facilities and grading there is complete, and that the
elevations and drainage patterns shown on the attached drawing(s) which were developed from a survey
performed on (Date)i(%Loc18' accurately and truly depict the elevations and drainage
patterns as they existed on the date of the survey. Based on this information, I certify that (check one):
XThe elevations and drainage patterns of the lot are in substantial conformance with the City
approved drainage and grading plan or revised grading plan for the property (information
attached). SEE NOTE.
❑ The elevations and drainage patterns of the lot as measured are in general conformance with the
City approved drainage plan or revised grading plan with exceptions (information attached). In my
professional judgment the elevations and grading of the lot as constructed is functionally
adequate and will allow for stormwater drainage consistent with the approved drainage plan.
SEE NOTE.
(signature, PE stamp)
(address of signing party)
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NOTE:
A COMPLETE certification must be submitted, including but not limited to drawings of the loVsite showing the approved design or
revised design and as -built surveyed elevations of all structures and drainage and grading features (e.g. swales, retaining walls, lot
corners), written information/explanation of discrepancies, etc. to:
Fort Collins Utilities (970) 221-6700
700 Wood Street
Fort Collins, CO 80621
At Least Two Weeks Prior To Requesting A Certificate Of Occupancy For The Property
(:!'CN r'CL;A'Tarl �Arz- S4ALCM - 51TC V � l r
DRAINAGE CERTIFICATION FORM
Please fill out all applicable items in this certification
form for single family, multi -family and commercial
properties.
Write "OK" for items checked or actual number checked in
field.
Use "N/An for items that are not applicable to the property
that is being certified.
A. Drainage facilities certification
1. Pond Certification — PAra/oN4 Lar e,::,-roRAGE
-volume verification
a.topographic records and volume
b.cross-sections and spot.elevations
-positive fall to pan
-side slopes NIA
-invert elevation
-spillway elevation
-placement and size of riprap NIA
-side.slopes NIA
-grading ✓
-orifice plate installation and size_ F'RE—�jCISTII`IC
-compaction of berm
-structural integrity of pond ✓
2. Swales — MID SWALC
-location (are they within easement).
-dimensions and cross-section verification
-longitudinal slopes and side slopes
-spot elevations k✓
-permanent erosion control measures (drop structures,
riprap, etc....)
-tie-in to pipes, pans, curbs, etc....
-weir size (elevations, size,. opening, etc.) 91A
-available freeboard ✓
-landscaping infringement on swales ✓
.3. Pipes - JZ�Xl STiN( NF_ •4 CdNsTgw CTION
-size and type
-slopes ('as -built and comparison to minimum 0.0.
slope)
-pipe capacity calculations if slopes are.
significantly altered
-invert elevations
-installation and backfill material
=cover
-encasement and clearance from other utility lines
close by
-joints
4. Concrete Pan Channels N
-size
-slope
.-super elevation
-cross .section
-thickness
-elevations
5. Inlets — �iSTIN� - CNo NE►� G�oNS�2l1C-T1cJN�
-size and type
2
-size of opening (or name of standard used)
-grate elevation
-invert elevation
-box size.
6.. Cross pans
-size
-type
-grade
-elevation
-cross-sectional depth .
-tie-in to curb and gutter
7. Culverts
-size
-type
-invert elevation
-headwalls
8. Underdrains
.size T ,
-type
-cover
-backfill
geotextiles
-cleanouts
9. Curb cuts N/A
-size
-tie in to swale, pipe, etc...
B. Certification of Grade Elevations Adjacent to Drainage
Facilities:
M
-minimum opening elevations /
-top of foundation elevations ✓
-comparison to 100 year WSEL's (Freeboard
requirements and floodplain issues)
C. Certification of Erosion Control Measures:
1. Permanent Measures: ✓
-Permanent vegetation (6" bare spots and weeds under
control)
-riprap
-riprap bedding N 1A
-drop sections WA
-sediment basins/water quality ponds N �A
-netting mats/blankets 1A
-mulching WA
2. Temporary Measures: 1 N E NS 1' 0fy
-mulching
-inlet filter installation
-check bale dams
-seeding and temporary vegetation
-silt fence
D. Site Cleanup After Construction
-construction clean up
-smoothing of ruts
-reseeding
E. Statement of Compliance
This certification.is signed and stamped and.by signing
this form the engineer(s) attests that they have inspected
the site and to the best of their knowledge the as -built
conditions of the drainage facilities are as described in
the above form and in the redlined plans enclosed.
Failure to properly disclose.all known information could
result in the rejection of this certification and prevent
the release of any Stormwater Utility holds on Building
Permits and/or certificates of Occupancy.
F. Signature and Stamp by a Colorado Registered
Professional Engineer.
4-
WEST DRAKE ROAD
E1115f. 100' RMM-OF-WAY
o "w fib' S SMR
U
H
0
LEGEND
SECTON ONE --
RIGNF OF WAY
SITEBOUNOARY/FRO
DUnNG CONFWR—
EASEMEW-------
EXISTING WRS =____
E%IS11NG FENCE —I -
NEW CURB, GUOER h N
SOUTHEAST DETENTIP N POND
VOLUME CALCULATI NS
HWL 0 39.35
DEPTH 0 OUTLET = 1.5�,
VOLUME REQUIRED = 111988 CF
VOLUME PROVIDED = 1568 CF
AS -BUILT GOADING
SCALE 1" = 20'
`V
2m
SCALE - 1'=20'
2272