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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Reference <br />Point <br />Number <br /> <br />15 <br /> <br />16 <br />16.1 <br /> <br />17 <br /> <br />18 <br /> <br />19 <br />19.1 <br /> <br />20 <br /> <br />21 <br />22 <br />23 <br />23.1 <br />24 <br /> <br />25 <br />26 <br />27 <br /> <br />Distance <br />From <br />Mouth <br />Ft. <br /> <br />56+25 <br />61+50 <br />68+30 <br />69+00 <br /> <br />69+30 <br />72+65 <br />77+10 <br />77+45 <br /> <br />77+80 <br />79+70 <br />83+80 <br />88+70 <br />89+25 <br /> <br />89+80 <br />93+10 <br />100+55 <br /> <br />Identification <br /> <br />Stream1/ <br />Bed <br />Elevation <br />Ft.-m.s,1. <br /> <br />Pratt Parkway <br /> <br />4941. 2 <br />4943,6 <br />4945.3 <br />4945.5 d/s <br />u/s <br /> <br />Footbridge <br /> <br />4945,8 <br />4946.6 <br />4947.2 <br />4947,2 d/s <br />u/s <br /> <br />S. Bowen Street <br /> <br />4947.5 <br />4947.7 <br />4951.1 <br />4953.0 <br />4953.3 d/s <br />u/s <br />4953.5 <br />4955,0 <br />4957,0 <br /> <br />TABLE 7_(Continued) <br /> <br />FLOOD FREQUENCY-ELEVATION-PJrD-DISCHARGE DATA <br />Lefthand Creek Boulder County, Colorado <br /> <br />10-Year <br />Peak 2 <br />Discharge-L <br />c.f.s. <br /> <br />Flood <br />Elevation <br />Ft.-m.s,1. <br /> <br />4945.3 <br />4948.3 <br />4950,9 <br />4950.9 <br />4951. 1 <br />4951.1 <br />4952,1 <br />4953,1 <br />4953.1 <br />4953.1 <br />4953,1 <br />4953.5 <br />4955.4 <br />4958,0 <br />4958.0 <br />4958.4 <br />4958.4 <br />4959,7 <br />4962.4 <br /> <br />d/s <br />u/s <br /> <br />d/s <br />u/s <br /> <br />d/s <br />u/s <br /> <br />Flood <br />Elevation <br />Ft.-m,s.l. <br /> <br />50-Year <br />Peak 2 <br />Discharge-L <br />c.f,s. <br /> <br />4949,7 <br />4952,3 <br />4955.4 <br />4955.4 <br />4956,3 <br />4956,3 <br />4956.5 <br />4957.0 <br />4957.0 <br />4957,3 <br />4957.3 <br />4957,8 <br />4959.3 <br />4961.2 <br />4961.2 <br />4962,7 <br />4962,7 <br />4963.4 <br />4966,6 <br /> <br />1/ Low water elevation as determined by aerial photogrammetric methods. <br />2/ Discharges are prorated between stations, <br /> <br />d/s <br />u/s <br /> <br />d/s <br />u/s <br /> <br />d/s <br />u/s <br /> <br />100-Year <br />Flood Peak 2 <br />Elevation Discharge-L <br />Ft,-m.s,l, c,f,s, <br /> <br />4952,1 <br />4954.8 <br />4957.4 <br />4957.4 <br />4957.7 <br />4957.7 <br />4958.0 <br />4958.3 <br />4958.3 <br />4958,5 <br />4958.5 <br />4959,1 <br />4961. 1 <br />4962,5 <br />4962.5 <br />4963.3 <br />4963.3 <br />4964,4 <br />4968.1 <br /> <br />d/s <br />u/s <br /> <br />d/s <br />u/s <br /> <br />d/s <br />u/s <br /> <br />500-Year <br />Flood Peak 2/ <br />Elevation Discharge-- <br />Ft,-m.s,l. c,f,s. <br /> <br />4955.6 <br />4958.4 <br />4959.6 <br />4959.6 <br />4959.8 <br />4959,8 <br />4960.1 <br />4960.5 <br />4960.5 <br />4960.6 <br />4960.6 <br />4961. 2 <br />4963.0 <br />4964.7 <br />4964.7 <br />4965.2 <br />4965.2 <br />4966,2 <br />4970.4 <br /> <br />11 <br />