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<br />the water surface level starting at spillway crest), it was <br />determined that approximately a 25-year to 50-year event will <br />raise the water surface elevation to the top of the dam. <br /> <br /> TABLE 9 <br />Peak Dam Failure Discharges from so-year storm <br /> (Thousand cofoso) <br /> Time for Breach to Form <br />Breach Widths (hr) <br />(feet) 025 050 1.0 200 400 600 <br />2105 37.0 32.0 24.0 14.0 704 5.2 <br />43 49.0 40.0 27.0 15.0 8.0 5.5 <br />86 70.0 51.0 28.0 16.0 806 6.0 <br />129 86.0 56.0 30.0 17.0 901 6.2 <br />172 98.0 56.0 32.0 18.0 9.3 6.4 <br /> <br /> TABLE 10 <br />Peak Dam Failure Discharges from 100-year storm <br /> (Thousand cofoso) <br /> Time for Breach to Form <br />Breach Widths (hrs) <br />(feet) 025 050 1.0 200 400 600 <br />2105 37.0 33.0 26.0 15.0 7.8 5.3 <br />43 50.0 42.0 29.0 16.0 8.7 5.8 <br />86 72.0 54.0 30.0 18.0 9.4 6.3 <br />129 88.0 59.0 32.0 18.0 10.0 6.7 <br />172 100.0 59.0 35.0 20.0 10.0 6.9 <br /> <br /> TABLE 11 <br />Peak Dam Failure Discharges from 500-year storm <br /> (Thousand c.foso) <br /> Time for Breach to Form <br />Breach widths (hrs) <br />(feet) .25 .50 1.0 200 400 6.0 <br />21.5 38.0 35.0 28.0 16.0 8.5 5.6 <br />43 51.0 44.0 32.0 18.0 9.3 6.1 <br />86 73.0 57.0 34.0 20.0 10.0 6.7 <br />129 90.0 63.0 35.0 21. 0 11. 0 7.2 <br />172 103.0 64.0 38.0 22.0 11.0 7.7 <br /> <br />11 <br />