HomeMy WebLinkAboutSite Certifications - 11/09/1998STEWART$,ASSOCIATES
Consulting Engineers and Surveyors
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November 5, 1998
Mr. Basil Hamdan
Storm Water Utility
City of Fort Collins
P.O. Box 580
Fort Collins, CO 80522-0580
Dear Basil,
RE: Advantage Rental Center - 4848 S. College Ave.
Owner - Ron Rockvam
Builder - Randy King Construction
On November 3, 1998, we checked the "As Built" building, curbs, pavement and drainage
facilities at the site.
The pavement was found to be not in conformance with the approved plan. The vee drain has
not been constructed in the driveway so that site runoff is not directed to the detention pond but
runs off the south edge of the pavement. Also, the inlet grate in the detention pond is constructed
0.86 feet too high, and therefore there is not enough detention volume in the pond.
After discussions, it was decided to build an earthen berm along the south side of the asphalt
drive to direct the runoff to the detention pond and to extend this earthen berm around the asphalt
ponding area to a height necessary to provide the required volume in the pond.
The berm has been constructed and we have surveyed the "As Built" elevations of its top.
These elevations are shown in red on the attached print, along with "As Built" elevations of the
building floors, curbs and pavement.
The new high water line elevation of the detention pond, with the raised berm is 4997.75.
This provides the necessary volume and is more than one foot below the lowest floor elevation of
4999.0.
A calculation of the revised detention pond volume is included.
Please call if you have questions.
Sincerely,*' �`' °`°••"'t
*! 4502
�e 7 •
Phillip I. Robinson, P.E. &ArAers H. Stewart i o Co.
meh and Associates, Inc. °'.,F','� ;>
103 S. Meldrum Street
P.O. Box 429
Ft. Collins, CO 80522
970/482-9331
Fax 970/482-9382
STEWART&ASSOCIATES
Consulting Engineers and Surveyors
103 S. MELDRUM, FORT COLLINS, CO 80521
PH. 482-9331 FAX 482-9382
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