PROJ00456

• Contract/PO #: FS0003X
• Contractor Name: Clear Creek Project CWRPDA
• Contract Type: Loan
• Water District: 0
• County: Clear Creek
• Loan Projects - Doc Type: Feasibility Study

TUDOR ENGINEERING COMPANY

Ralph A, Tudor (1902-19631

Consulting Engineers and Planners

621 - 17th Street, Su ite 750
Denver, Colorado 80293
[phone]

John Williams-Vice President
Office Manager

June 30, 1989

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Mr. Ulrich Kappus, P.E.
Executive Director
Colorado Water Resources and
Power Development Authority
Logan Tower Building
1580 Logan Street, Suite 620
Denver, Colorado 80203

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Subject: Clear Creek Project
Submittal of Summary Report for Step 2 of the
Phase I - Feasibility Study

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Dear Mr. Kappus:

We are pleased to submit this Summary Report for the Clear Creek Phase I,
Step 2 - Feasibility Studies. A Final Report is submitted under separate cover.
These Step 2 studies complete the Phase I investigation which was performed in
two steps. This step of the investigation provides estimates of the new water
supply which can be developed in the Clear Creek basin. Firm yield and project
cost have been estimated for a range of reservoir sizes at a representative
damsite in Clear Creek Canyon.

Results of this study indicate that Clear Creek could be a major source
of new water supply for Denver's northern metropolitan area. These
investigations have estimated that up to 61,000 acre-feet per year of new firm
yield could be developed from water which originates in the Clear Creek basin.
The cost of storage and delivery of this new firm yield is estimated to range
from $630 to $940 per acre-foot per year based on the project investment cost.
To obtain new firm yields of this magnitude, the full cooperation of the Clear
Creek water users will be needed to conjunctively manage their water rights so
that maximum advantage can be gained from a major new reservoi r. The Cl ear
Creek Water Users Alliance has already initiated efforts to expand cooperation
and provide greater efficiency in water use on Clear Creek.

The main project features would include a large dam and reservoir located
in Clear Creek Canyon, and relocation of that portion of U.S. Highway 6 that runs
through the canyon. Conceptual designs and cost estimates were developed during
Step 2 investigations for only one of several potential damsites in Clear Creek
Canyon. This site, the Centennial damsite located approximately two miles west
of Tunnel No.3, is considered representative of the damsites available in the
canyon. To fully develop Clear Creek water, a dam of about 500 feet in height
would be needed. Capital costs of approximately $400 million have been estimated
for a project of this magnitude, including the cost of relocating U.S. Highway 6.
The plans for project development should consider the needs of local communities
and users of U.S. Highway 6; our preliminary studies indicate that a project can
be developed that will meet these needs.

CORPORATE OFFICE
301 Mission Street San Francisco, CA 94105 [phone]