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IV. Cost Analysis <br /> Detailed cost estimates for the proposed improvements are presented in the appendices. These costs <br /> include a 5 percent contingency, a 20 percent allowance for design, inspection, legal, and <br /> administration costs, and a 5 percent allowance for capitalized interest and bonding costs during <br /> construction. The costs are based on 1999 construction and can be related to the ENR index for <br /> March, 1999 of 5,986. A summary of the estimated costs for the proposed improvements is <br /> presented in Table 1. <br /> Table 1. Summary <br /> I <br /> Item Estimated Cost <br /> Baldur Park <br /> Sanitary Sewer (Gravity) $75,000 (Gravity Option) <br /> Sanitary Sewer (Pressure) $58,000 (Pressure Option) <br /> The cost estimates do not include easement costs that could be incurred on the project. <br /> It is recommended that the sewer construction costs be assessed uniformly over the area to be served, <br /> based on a total of three units. This results in a charge of$25,000 per unit for the gravity option. <br /> If the pressure option were chosen the charge per unit would be $19,333. <br /> Baldur Park Sanitary Sewer Improvements 9 <br />