HomeMy WebLinkAboutSite Certifications - 02/06/1996,-~~ Fort Collins Denver Colorado Springs
P.O. Box 2127 Eighteenth Street Atrium P.O . Box 182
2290 E. Prospect 1621 18th Street, Suite 250 Colorado Springs, CO
Ft . Coll ins, CO 80522 Denver , CO 80202 80901-0182
(970) 493-8747 (303) 296-0383 (719) 633-47 13
Archistruction 'M (970) 493-5869 FAX (303) 296-0382 FAX (719) 633 -9508 FAX
, / ----r TRANSMITTAL LETTER c) {A_ (.9 tt , -C ,V
January 25, 1996 RcJetnt' J:) 'f /,0 ....,,_ ~C/J<;_
(fr( _J070 ~ u~. --= TO: Mr. Basil Hamdan
City of Fort Collins Stormwater Utility
235 Mathews Street
Fort Collins, CO 80524
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JOB: Advanced Energy, 2400 Midpoint Drive, Permit No. 952386
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1 COPY(IES) OF: Drainage Certification together with red-line print of Drainage and
Erosion Control Plan
REMARKS: Please release for Certificate of Occupancy
THE NEENAN COMPANY
~ James R. Hayes
Project Manager
xc : file
January 24, 1996
Mr . Basil Hamdan
Stormwater Utility
23 5 Mathews Street
li3 PARK ENGINEERING
~ CONSULTANTS
Fort Collins, Colorado 80522
RE: ADVANCED ENERGY DRAINAGE CERTIFICATION
Dear Basil :
Enclosed is a completed Drainage Certification Form and a red-lined print of the Drainage
and Erosion Control Plan for the referenced facility .
We have completed an as-built survey and inspection of this project and fine that it has
been completed in substantial compliance with the approved Plans prepared by us .
If you have any questions, please call .
cc : Jim Hayes, Neenan Company
file 10734X01.doc
1240 Main Street Longmont, CO 80501 (303) 651-6626 FAX (303) 651-0331
JA N-24-96 WE~· 13:58
OAAINAGE (:.1:!,;.l:('1'1.J:o'J.CA'l'ION FORM
Please fill out all applicable items in this certification form
for sin,gle family, m11lti'-family and commerci.il properties.
Write "OK" for items checked or actual number checked in field .
Use 11 N/A" for items that are not applicable to the property that
is being certified.
A, Drainage facilities certification
l. Pond Certification
-volume verification
a. topographic records and volume
b. cross-sections and spot elevations
-positive fall to pan
-side slopes
-invert elevation
-spillway elevation
-placement and size of riprap
-side slopes
-grading
-oritice plate installation and size
-compaction of berm
-structural integrity of pond
2. Swales
-location (are they within easement)
-dimensions and cross-section verification
-longitudinal slopes and side slopes
-spot elevations
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OK.
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P. 02
JAN-24-96 WED 13:58
4.
-permanent erosion control measures
(drop Pt~uctures, riprnp, Ate .... )
-tie-in to pipes, pan,s, curbs, etc ... .
-weir 8i7.P-(Alevations, size, opening, etc ... )
av~il~bl~ frQ9bo~rd
-landscaping infringement on swales
-size and type
-slopes (as-built and comparison to minimum
0.4%' slope}
-pipe capacity calculations if slopes are
significantly altered
-inccallacion and backfill m~ccri~l
-cover
-Rn~~RAmAnt ~n~ ol .earance from other utility
lines close by
-joints
Concrete Pan Channels
-size
-slope
-super elevation
-cross-section
-thickness
-elevations
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P. 03
JAN-24-96 WED 13:59 P. 04
5. Inlets
-size and type OI.(
-size of opening (or name of standard used) OK...
-grate elevation Oit-
-invert elevation c,l(
-box size 06(
-size
-type
-grade
-e levation
-cross-sectional depth
-tie-in to curb and gutter
7. Culverts
-size
-type
-invert elevation
-headwalls
8. Underdrains
-size lf)_4
-type '(
-cover t,
-backfill
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-geotextiles I(
1AN-24-96 WED 13:59
-cleanouts
9. Curb cuts
-size
-tie in to swale, pipe, etc ....
B. Certification of Grad~ Elevations Adjacent to
Drainage Facilities:
-minimum opening elevations
-top of foundation elevations
-compai·i.,on to 100 yeai.· WOOL'.,
(Freeboard requirements and floodplain issues)
C. Certification of Erosion Cont~ol Measures:
1. Permanent Measures~
-Permanent vegetation (6 11 bare spots and weeds
under control)
---riprap
-riprap bedding
-drop sections
-sediment basins/water quality ponds
-netting mats/blankets
-mulching
P. 05
~JAN-24-96 WED 14:oo
2. Temporary Measures:
-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
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This certification is signed and stamped and by signing this
form the engineer(s) attests that to the best of his 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
relcace of any Stormwater Vtility holds on Building Permits
and/or Certificates of Occupancy.
F . Signature and Stamp by a Colorado
Engineer.
P. 06