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EMERGENCY SEWER LATERAL REPLACEMENTS <br /> <br />Current requests for sewer lateral repairs/replacements are approximately 50 per year. <br />City would retain a contractor to provide emergency replacements, estimated cost is <br />$4,500 per lateral on an individual basis. <br /> <br />50 laterals per year x $4,500 per lateral = $225.000 per year. <br /> <br />SEWER MAIN REPLACEMENTS <br /> <br />Assume 450 miles of sewer main, 8,000 manholes, 45,000 laterals. <br /> <br />If all facilities are assumed to have a life expectancy of 100 years, the annual <br />replacement schedule would be as follows: <br /> <br />4.5 miles of sewer main. <br />80 manholes. <br />400 sewer laterals (Total will actually be 450, but 50 are replaced under emergency <br />basis). <br /> <br />Assumptions: <br /> <br /> · Majority (90%) of sewer replacement will be 8". <br /> · Average sewer lateral is 4" in size and 30 feet in length. <br /> <br />Estimated construction costs (including design and administration): <br /> <br /> · 8" sewer main = $70 per lineal foot. <br /> · Replace lateral = $1,500 each. <br /> · Replace manhole = $3,800 each. <br /> <br />Annual program construction costs: <br /> <br />4.5 miles of new mains .......................... = $1,663,200 <br />400 laterals ............................................. = $600,000 <br />80 manholes ........................................... = $304,000 <br /> <br />Total ........................................................ = $2,567,200 <br /> <br />Resolution No. 2001-059 <br />Page 6 of 7 <br /> <br /> <br />