HomeMy WebLinkAboutTHE GREENS AT COLLINDALE PUD - PRELIMINARY - 8-96 - SUBMITTAL DOCUMENTS - ROUND 1 - DRAINAGE REPORTi
FIGURE 1
MMHTY MAP
z
1 1.0
l Introduction
1.1 Scope and Purpose
rThis report presents the results of a Preliminary Drainage Evaluation for The Greens at
Collindale Subdivision. A hydrologic analysis of the proposed development plan was completed
to determine the location and magnitude of the storm runoff. A preliminary evaluation of
required detention storage was.conducted to determine the impact of a detention facility on the
Preliminary Site Plan.
The purpose of this report is to evaluate the development in preparation for a final stormwater
management plan that will address: (1) overall storm drainage planning and management, (2)
detention of flows exceeding allowable release rates, and (3) erosion control.
1.2 Proiect Location and Description
The Greens at Collindale Subdivision is a proposed residential site located in the northwest
quarter of Section 31, Township 7 north, Range 68 west, of the 6th Principal Meridian, in
Larimer County, Colorado. The site is roughly bounded by Lemay Avenue to the west,
Collindale Golf Course on the north and east, and Golden Meadows Filing Two to the South.
See Figure 1. The proposed site falls within the Fox Meadows Drainage Basin.
The Greens at Collindale Subdivision consists of approximately 6.43 acres and is within an RLP
(Low, Density Residential) Zoning District within the City of Fort Collins, Colorado. The
development will have approximately 38 lots. All of the roadways within the development will
be private streets designed as close as possible to the City of Fort Collins' classification of local
streets.
■ 1.3 Previous Studies
The "Fox Meadows Basin (Basin H) Drainage Master Plan" (Resource Consultants, Inc.,
February 25, 1981) was reviewed prior to commencement of this report.
i
TST, Inc.
1 March 1996
10-842-000
TABLE OF CONTENTS
Page
1.0 Introduction
1.1 Scope and Purpose.............................................................................. 1
1.2 Project Location and Description............................................................. 1
1.3 Previous Studies.................................................................................1
2.0 Histofic Conditions......................................................................................
3
3.0 Developed Conditions Plan
3.1 Design Criteria..................................................................................
4
3.2 Drainage Plan Development..................................................................
5
3.3 Erosion Control Plan...........................................................................
5
Figures
Figure1 - Vicinity Map.......................................................................................... 2
Tables
Table 1 - Existing Hydrologic Calculations Worksheet............................................... 6 & 7
Table 2 - Proposed Hydrologic Calculations Worksheet.............................................. 8 & 9
Appendices
Appendix A - Rational Method Analysis
Appendix B - Preliminary Detention Analysis
Sheets
Existing Drainage Sheet............................................................................. Sheet 1 of 1
Preliminary Drainage Plan.......................................................................... Sheet 1 of 1
0
Mr. Basil Hamden
City of Fort Collins
Stormwater Utility Department
P.O. Box 580
Fort Collins, CO 80522-0580
Re: Ae Greens at Collindale
Project No. ] 0-842-000
Dear Basil:
March 18, 1996
We are pleased to submit to you this Preliminary Drainage Report for The Greens at Collindale
Subdivision. We believe this report satisfies all requirements for a Preliminary Drainage Report.
We look forward to your review and comment and will gladly answer any questions you may have.
Sincerely,
TST, INC. C SULTING ENGINEERS
Michael B. Reeve, P.E.
Enclosure
TCT '�/�. 748 Whalers Way - BuildingD 102 Inverness Terrace East
a 9 V Fort Collins, CO 80525 Suite 105
Consulting Engineers (303) 226-0557 Englewood, CO 80112
Metro Denver (303) 595-9103 (303)792-0557
Fax (303) 226-0204 Fax (303) 792-9489
PRELIMINARY
STORM DRAINAGE REPORT
THE GREENS AT COLLINDALE
P.U.D.
SUBMWED A
CITY OF FORT COLLINS
INS
I TST, INC.
CONSULTING
ENGINEERS