C150094 Application ‎(2)‎

• Contract/PO #: C150094
• Contractor Name: La Plata Water Conservancy District
• Contract Type: Grant
• County: La Plata
• Loan Projects - Doc Type: Application

Wright Water Engineers, Inc.
1 666 N.Main Ave.,Suite C www.wrightwater.corn
Durango, Colorado 81301 March 8, 2002 e-mail:wwedrngo®frontier.net
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John Van Sciver
Colorado Water Conservation Board
1313 Sherman Street, Rm. 721
Denver, Colorado 80203
RE: Grant for Proposed Feasibility Study of Long Hollow Reservoir and Red Mesa
Reservoir Enlargement
Dear Mr. Van Sciver:
This letter provides the Colorado Water Conservation Board(CWCB)with a study plan
to accompany the grant application for the above-referenced feasibility study. Wright
Water Engineers, Inc. (WWE)prepared this study plan on behalf of the La Plata Water
Conservancy District (LPWCD). WWE believes that sufficient preliminary work has
been completed to allow a feasibility study to proceed without conducting formal
reconnaissance level studies for either proposed reservoir.
The Red Mesa Reservoir Enlargement has been sufficiently evaluated to complete the
feasibility work in one phase, and proceed with construction on an expedited schedule.
For the Long Hollow Reservoir site, the scope of work and estimated costs have been
separated into two phases. Phase I consists of items necessary to satisfy the feasibility
threshold of the CWCB. Phase I will evaluate threshold issues that represent potential
fatal flaws for the Long Hollow site. A construction cost estimate for the two reservoir
projects --within+/- 50% of actual costs --will be attainable when this work is
completed. Phase II activities for Long Hollow Reservoir consist of the additional field,
lab and office work needed to refine the cost estimate for this project.
The scope of work and estimated costs for the proposed feasibility study are broken out
for the two separate reservoir sites since the work required for each site differs (see
Figure 1 for site locations and Table 1 for a cost summary). In addition, funds already
expended by various entities are summarized as matching funds for this grant application.
I. PROPOSED RED MESA WARD RESERVOIR ENLARGEMENT
Introduction
Red Mesa Ward dam and reservoir is located on Hay Gulch in Sections 22 and 27, T34N,
R12W of the New Mexico Principal Meridian. Preliminary research indicates that the
dam and existing reservoir site is owned by the Red Mesa Ward Reservoir and Ditch
Company (Reservoir Company). The enlarged dam and reservoir land is owned by the
Reservoir Company and one other private party.
The dam was originally constructed in 1915. After the dam was washed out in a flood in
1929, the dam was rebuilt in 1945 to its current configuration. The reservoir, which is
used for irrigation, is filled annually by natural inflows and a diversion from the La Plata
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DENVER GLENWOOD SPRINGS
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