C153379 Feasibility Study

• Contract/PO #: C153379
• Contractor Name: Brook Forest Water District
• Contract Type: Loan
• Water District: 9
• County: Jefferson
• Bill Number: SB 80-67
• Loan Projects - Doc Type: Feasibility Study

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CHAPTER I
INTRODUCTION

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A. OVERVIEW

The 1981 Colorado General Assembly passed S.B. 439 which provided

funds to investigate four potential Colorado water resources projects, includ-

ing the Hardin Dam Project. The legislative action authorized the Colorado

Water Conservation Board (CWCB) to conduct a feasibility study of "a dam and

reservoir on the South Platte River upstream of the town of Masters with a

reservoir downstream of the town of Greeley."

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The CWCB sought and received proposals from interested engineering

consulting firms and selected Dames & Moore to perform the study. Following

contract negotiations, a contract was signed effective January 18, 1982. On

February 1, 1982 the CWCB issued a notice to proceed to Dames & Moore,

authorizing the initiation of the study.

B. OBJECTIVE

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The objective of this study is to evaluate, at an appraisal level

of detail, the engineering feasibility of Hardin Dam, including potential

hydroelectric facilities. (An appraisal-level analysis is defined as an

analysis carried out to the depth necessary to select between alternatives.)

This analysis includes conceptual designs for an earth-fill dam, a con-

crete spillway and a reservoir. Analyses of alternative reservoir operations

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were performed to reflect a range of alternative reservoir sizes.

A range

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of reasonable assumptions about the future status of senior conditional

decrees was made for the purposes of these analyses. These appraisal-level

engineering studies include:

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o Evaluation of the proposed Hardin Reservoir water yield under differ-
ing water rights assumptions.

o An analysis of potential water uses including agricultural, munic-
ipal/industrial and hydropower generation. This includes an
analysis of alternative dam and reservoir sizes to realize the
potential benefits.

o Limited economic analyses of the various benefits derived from
hydropower and flood control which would be developed by the project.

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