HomeMy WebLinkAboutLot Certifications - 08/16/2001AMMS
ASSOCIIA7ES
August 16, 2001
Ms. Lisa Dunn
Larimer County Engineering
218 W. Mountain Avenue -
Fort Collins, Colorado 80521
Re: Drainage Certification for Lot 22, Block 7, Fossil Lake PUD, First Filing
Dear Lisa,
We recently performed an as -built survey for the above -referenced lot (3288 Twin Heron Court)
to verify whether its grading met the approved grading and drainage plan. Spot elevations were
checked at pertinent locations and compared to the grading plan. The enclosed drawing shows
these as -built elevations.
In general, the lot and building meet the requirements of the grading and drainage plan and
there is positive drainage away from the building on all sides. The final grade adjacent to the
garage is 4904.6; the garage floor elevation is 4905.00. The final grade around the remainder
of the house ranges from 4903.8 to 4906.1;. which is sufficiently below the first floor elevation of
4907.43.
The grading for the lot provides for positive drainage away from the house: the west side of the
house drains south toward Twin Heron Court; the front of the house drains either to Twin Heron
Court (and then to a sidewalk culvert) or directly to the drainage channel that flows northeast
along the southeastern property line; the backyard drains east toward the drainage channel. It
appears that there are no irregularities in the grading of the drainage channel (no humps or low
spots).
It is our recommendation that the CO for Lot 22, Block 7 be released since the Builder graded
the lot to meet design drainage patterns. If you have any questions, please call.
Sincerely,
Owen Ayres & Associates, Inc.
Christo er L. Doherty, P.E.
Project Engineer
CLD:sp
Enclosure
Owen Ayres & Associates. Inc.
Engineers/Scientists/Surveyors
3665 JFK Parkway, Building 2, Suite 200, P.O. Box 270460, Fort Collins, CO 80527 DUNN8LT.DOC
(970) 223-5556, Denver Metro (303) 572-1806, FAX (970) 223-5578 32-0267.01
Printed on recycled paper
4903.
4902.8
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Lot 22, Block 7, Fossil Lake PUD, First Filing
3288 Twin Heron Court
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