HomeMy WebLinkAboutPONDEROSA PARK PUD REPLAT - FINAL - 17-87A - CORRESPONDENCE - DRAINAGE RELATED DOCUMENT1'Eil1lARI' SC�C1A1'E'�
Consulting Engineers a,nd Surveyors
May 13, 1.987
Mr. Robert Smith
Storm Drainage Department
City of Fort Collins
P.O. Box 580
Fort Collins., Colorado 80522
Dear Bob:
This is regarding the storm drainage for the North 1/2 of Ponderosa Park
P.U.D. which is a 3.69 acre residential P.U.D. located on the East side of
Ponderosa Drive approximately 200 feet South of West Mulberry Street. The
original plans were made by Cornell Consulting Company and dated April 27, 1979.
They were approved by the City of Fort Col'iins May 30, 1979. The drainage
calculations are shown on Sheet 4 of 4. A copy of the original calculations
are enclosed.
The P.U.D. is being amended to provide single family detached patio homes
rather than duplexes and..four—plexes. The utilities and the curb and gutter
around the parking lot as well as the asphalt on the entrance road have been
constructed. Therefore none of the improvements are being changed. There are
two detention ponds being provided, one on Tract "E" and one on Tract "I".
The original calculations used a runoff coefficient of 0.5 and the same
was used for the proposed replat. The runoff calculations for the proposed
replat are enclosed.
After the Ponderosa Park P.U.D. was approved, the Skyline Mobile Home Park,
which is adjacent on the East, was enlarged. The mobile home park was filled
which blocked the drainage from Ponderosa Park. Both plans were approved by
the City of Fort Collins. In May 1985, I prepared a plan and profile which
would change the Ponderosa Park P.U.D. detention ponds to allow them to discharge
onto the mobile home park's Street "A" as originally planned. A copy of the
plan is enclosed.
Since the density is being reduced. and the parking area and cu de sac
are not being revised, the storm water runoff is not increased. Therefore the
deten are not bein chap ed." ��:
�yt�• If you have any questions
ve
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regarding this P.U.D., please call.o
Sincerely,
Ir ���• %`` James H. Stewart
and Associates, Inc..
Richard A. Rutherford, P.E. & L.S.
President
214 N. Howes Street
P.O. Box 429
R. Collins, CO 80522
3031482-9331
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