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-20- <br />esi;mates. Project design and administration costs were included in the opinion of probable <br />construction costs as a percentage of the base construction costs, with larger projects <br />reflecting a smaller percentage engineering fee. <br />Reconstruction and /or replacement of the Julesburg Reservoir Dams will have construction <br />costs ranging from $8 million to $23 million. Stabilization of Darn 1 only would cost in the <br />range of $400,000. Table 3 summarizes the probable construction costs for the enlargement <br />of Julesburg Reservoir project. This table also presents the reservoir storage volume gain <br />under each option, and the cost per acre -foot for prod ucingths storage. In terms of unit cost <br />of storage, Option C -3 provides the most economical project at,$1,,048 per acre -foot storage, <br />and also provides the most new storage at 21,900acre -feet. -:Tables 4 through 9 provide <br />detailed itemization of the opinion of probable construction costs for the six alternatives <br />presented in this report. <br />10.0 ADDITIONAL CONSIDERATIONS <br />At the present level of study, there are many - uncertainties with respect to financial, technical, <br />environmental, and political issues. Due to many considerations and issues outside the scope <br />of this study,.we cannot make a`firm recommendation to proceed with any option. However, <br />we do recommend that the District and other project participants proceed with the following <br />actions. <br />10.1 Financial Feasibility <br />• Evaluate the writ cost for developing storage against other options available. (/ <br />• Evaluate potential sources of financing. <br />• Assess ;economic feasibility, including staged implementation. - - -- <br />2 \reports \97 -1 -500. nk <br />