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s <br />r <br />r <br />TABLE 2.1-12a. <br />------------------------------------------------------------------------------------=---------------------------- <br />PEAK <br />FLOWS'FOR".,THE;PYEATT <br />AND FLUME <br />GULCH <br />DRAINAGES. <br />AREA OF <br />CROSS- <br />MAXIMUM <br />RUNOFF <br />PEAK <br />I. <br />SECTION <br />OF FLOW <br />DEPTH <br />VELOCITY <br />VOLUME- <br />RUNOFF <br />- <br />(square <br />feet), <br />(feet) <br />(feet/second) <br />(acr/ft) <br />(cfs) <br />TIME OF <br />DRAINAGE <br />SLOPE- <br />--------- <br />_----- <br />_____________ <br />_____________ <br />_____________ <br />---------- <br />CONCENTRATION <br />BASIN (ft/ft). <br />10 YR <br />100 YR <br />10 YR100 YR <br />10 YR <br />100 YR <br />10 YR <br />100 YR <br />•10 YR <br />100 YR <br />(hours) <br />FEST PYEATT. <br />.033 <br />1.75 <br />.8.59 <br />..258 .746 <br />3.66 <br />___________________________________:____;____-___ <br />7.42 <br />2.11 <br />8.32 <br />'4.89 <br />48.;5 <br />.324• <br />MIDDLE PYEATT <br />.029 <br />2.23 <br />10.7 <br />.291 .812 <br />3.71 <br />7.36 <br />3.16 <br />12.4 <br />'6.50 <br />60.2 <br />:454:' <br />EAST PYEATT <br />.037 <br />3.82. <br />17.8 <br />.647, 1.81 <br />7.15 <br />14.18 <br />10.2 :'40.0 <br />20.7 <br />.188 ,: <br />:479 <br />FLUME -W: FORK <br />.035 <br />2.36 <br />11.7 <br />.305 .888 <br />4.21 <br />8.58 <br />3.19 - <br />12.5 <br />.7.58 <br />76.5 <br />:296- <br />FLUME -MIDDLE <br />WEST FORK <br />.039 <br />1.89 <br />9.26. <br />.363. 1.05 <br />4.99 <br />10.13 <br />3.13. <br />12.3 <br />.7.18 <br />70.6 <br />.334 . <br />FLUME- <br />- <br />MIDDLE FORK <br />.059 <br />1.50 <br />:7.61 <br />-.125 .369 <br />3.02 <br />6.21 <br />1.36 <br />5.35 <br />.3.45 <br />36.0 <br />.244'. <br />FLUME -MIDDLE <br />EAST FORK <br />.17 <br />1.30 <br />.6.47 <br />.361 1.05 <br />10.38 <br />21.16 <br />4.40 <br />17.3 <br />10.2 <br />102 <br />. .319 <br />FLUME -E. FORK <br />.117 <br />.827 <br />.4.27 <br />'.152 .453 <br />4.64 <br />10.06 <br />1.16• <br />4.57 <br />'3.05 <br />32.6 <br />'.215,. <br />NOTE: Mannings <br />n = <br />.03. <br />All Calculations <br />are for the 24 <br />Hour Type II Rainfall <br />