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Advantaqe~ <br /> <br />For the most part, the culverts will remain free of standing water, The 54" <br />RCP could potentially have 2 feet of standing water and portions of the 48" <br />RCP 1 foot of standing water. <br />The trunk storm sewer could be phased since the pond outlet is not <br />dependent on the trunk west of the control structure. <br /> <br />Disadvantages <br /> <br />The cost is $50,000 more than Alternative 1. <br />This alternative provides less flood protection than Alternatives 1, 2, and <br />3. <br /> <br />Summary of AJternative 5 <br /> <br />Descriptio.n. <br /> <br />Alternative 5 is similar to Alternative 4 except that flov,'s above elevation 854 would be <br />conveyed to the existing Tungsten Street storm sewer system. The total cost of this <br />alternative is $470,238. <br /> <br />_A_ dvanta~es <br /> <br /> · <br /> <br />For the most part, the culverts will remain free of standing water. The 54" <br />RCP could potentially have 2 feet of standing water and portions of the 48" <br />RCP 1 foot of standir)g water. <br />The trunk storm sewer could be phased since the pond outlet is not <br />dependent on the trunk west of the control structure. <br /> <br />Disadva0tages <br /> <br />The cost is $80,000 more than Alternative 1. <br />This alternative provides less flood protection than Alternatives 1, 2 and 3. <br />A portion of Tungsten Street will need to be reconstructed to install the <br />outlet. . <br />Approximately 210 feet of pipe would need to be jacked under Highway <br />10. It may be difficult to control the pipe invert at the proposed slope of <br />'0,15%. <br />Discharging to the Tungsten Street Storm sewer would influence the <br />existing flood elevation in that system. <br /> <br />Page 3 of 3 <br />\\H~01\$harod Oocs\Munlclpa~ARAIVJSEY~417~RA417AItSurnmadas.doc <br /> <br /> <br />