C150268 Feasibility Study

• Contract/PO #: C150268
• Contractor Name: Louden Irrigating Canal and Reservoir Company
• Contract Type: Loan
• Water District: 4
• County: Larimer
• Loan Projects - Doc Type: Feasibility Study

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COST ESTIMATE

The complete breakdown of the cost of the work proposed for Alternative 1, Alternative 2, and
Alternative 3 are shown in Tables 1, 2, and 3 respectively. The costs are based on our past
experience with similar projects and also from data supplied by local contractors and suppliers.
Quantities were based on surveying and a topographic map of the dam outlet area that was recently
conducted for this project.

A summary of the costs for the three alternatives, including the engineering fees and contingencies,
are shown in Table 5.

TABLE 5
TOTAL PROJECT COST SUMMARY

1. Construction Cost $ 193,500 $ 340,000 $ 254,400
2. Contingency @ 20% $ 38,700 $ 68,000 $ 50,900
3. Engineering Fees $ 38,700 $ 68,000 $ 50,900
4. Feasibility Study $ 18,858 $ 18,858 $ 18,858
5. Total Project Cost $ 289,758 $ 494,858 $ 375,158
6. Cost Per Acre Foot $ 590 $ 1,007 $ 763

SELECTED PROJECT

The company has chosen Alternative 1 which is the full replacement of the outlet works and service
spillway. The cost of this alternative is estimated at approximately $ 289,758.

Work included in Alternative 1 is as follows:

1. Excavate the exiting dam embankment material between Sta. 21 +00 and
24+93 to a depth of 15 feet and replace the excavated material with
compacted and conditioned material that will meet ninety- five percent ofthe
dry density and plus/minus two percent of the optimum moisture content.
2. Replace and extend the existing toe drain along the western edge ofthe dam
with a new toe drain to intercept seepage.
3. Place riprap and bedding on the upstream face of the dam between Sta. 21 +00
and 24+93.

Rist-Benson Feasibility Study

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