C153379 Feasibility Study - Laserfiche WebLink

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I I I EXECUTIVE SUMMARY I AUTHORITY I I In 1981, the Colorado General Assembly authorized the Colorado Water Conservation Board (CWCB) to conduct studies of four potential water resources development projects. Among these was the Hardin Dam Project, ". . . a dam and reservoir on the South Platte River upstream of the town of Masters with a reservoir downstream of the town of Greeley" (section 7, S.B. 439), see Figure II-I. I The CWCB retained Dames & Moore to perform the Hardin Dam Project study. I I Expenditures were limited by S.B. 439 to $300,000. In addition, S.B. 439 specifies that future funding .. . . . is contingent upon a showing that addi- tional funding is justified based on competent engineering and economic data. " I I STUDY OBJECTIVE The obj ective of this study was to evaluate, at an appraisal-level of detail, the engineering feasibility and cost of Hardin Dam, including poten- I I tial hydroelectric facilities. include: These appraisal-level engineering studies I I o Evaluation of the proposed Hardin Reservoir water supply under dif- fering water rights assumptions. o An analysis of alternative dam and reservoir sizes and the resulting yields. o Limited economic analyses of hydropower and flood control project benefits. o Appraisal-level engineering designs and associated cost estimates, including capital, operation, maintenance and replacement costs. o Preparation of a comprehensive report which summarizes the work completed during the study. I I GEOLOGIC AND GEOTECHNICAL INVESTIGATIONS I I Initially, it was anticipated that the geologic and geotechnical analyses in the study would rely heavily on work previously completed for the Narrows Dam site and the Hardin Dam site. However, during the initial stages of the work it was discovered that the key geotechnical information on engineering i I