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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 />82 <br /> <br />83 <br /> <br />84 <br /> <br />85 <br /> <br />86 <br />87 <br /> <br />88 <br /> <br />89 <br /> <br />90 <br /> <br />90.5 <br />91 <br />92 <br />92.1 <br />93 <br /> <br />94 <br />95 <br />96 <br /> <br />Distance <br />From <br />Mouth <br />Ft. <br /> <br />:>86+70 <br /> <br />387+00 <br />392+90 <br />399+30 <br />408+20 <br />413+65 <br />419+50 <br />426+10 <br />426+40 <br /> <br />427+10 <br />431+85 <br />439+80 <br />444+60 <br />445+00 <br /> <br />445+80 <br />451+65 <br />455+95 <br /> <br />Identification <br /> <br />Stre~ <br />Bed <br />Elevation <br />Ft.-m.s.l. <br /> <br />Nimbus Road <br /> <br />5101. 0 dls <br />u/s <br /> <br />N. 63rd Street <br /> <br />5101. 2 <br />5108.3 <br />5115.2 <br />5126.0 <br />5132.9 <br />5139. 1 <br />5148.0 <br />5148.0 dls <br />u/s <br /> <br />Access Road <br /> <br />5149.2 <br />5155.3 <br />5163.1 <br />5269.7 <br />5170.0 dls <br />u/s <br /> <br />5171.1 <br />5178.4 <br />5183.8 <br /> <br />TABLE 7 (Continued) <br /> <br />FLOOD FREQUENCY-ELEVATION AND DISCHARGE DATA <br />Lefthand Creek Boulder County, Colorado <br /> <br />Flood <br />Elevation <br />Ft. -m. s.l. <br /> <br />10-Year <br />Peak 2 <br />Discharge-L <br />c. f.s. <br /> <br />5104.7 <br />5105.1 <br />5105.1 <br />5112.9 <br />5118.9 <br />5130.4 <br />5137.2 <br />5142.4 <br />5151. 8 <br />5151.8 <br />5152.8 <br />5152.8 <br />5159.9 <br />5168.0 <br />5174.3 <br />5174.3 <br />5175.9 <br />5175.9 <br />5182.2 <br />5187.1 <br /> <br />dls <br />u/s <br /> <br />dls <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 />Di s charge...L <br />c. f.s. <br /> <br />5106.6 <br />5108.8 <br />5108.8 <br />5115.2 <br />5121.3 <br />5133.5 <br />5140.2 <br />5145.0 <br />5156.4 <br />5156.4 <br />5158.7 <br />5158.7 <br />5163.3 <br />5171. 4 <br />5178.2 <br />5178.2 <br />5180.0 <br />5180.0 <br />5185.6 <br />5190.5 <br /> <br />II Low water elevation as determined by aerial photogrammetric methods. <br />21 Discharges are prorated between stations. <br /> <br />dls <br />uls <br /> <br />dls <br />u/s <br /> <br />dls <br />u/s <br /> <br />100-Year <br />Flood Peak 2 <br />Elevation Discharge-L <br />Ft.-m.s.1. c.f.s. <br /> <br />5107.8 <br />5109.9 <br />5109.9 <br />5116.2 <br />5123.0 <br />5135.8 <br />5141. 2 <br />5146.5 <br />5157.6 <br />5157.6 <br />5162.1 <br />5162.1 <br />5164.3 <br />5173.9 <br />5180.4 <br />5180.4 <br />5182.2 <br />5182.2 <br />5187.4 <br />5191.6 <br /> <br />d/s <br />u/s <br /> <br />dls <br />u/s <br /> <br />dls <br />u/s <br /> <br />500-Year <br />Flood Peak 21 <br />Elevation Discharge-- <br />Ft.-m.s.1. c.f.s. <br /> <br />5108.9 <br />5110.8 <br />5110.8 <br />5117.3 <br />5126.6 <br />5136.8 <br />5143.1 <br />5148.9 <br />5159.1 <br />5159.1 <br />5163.6 <br />5163.6 <br />5165.6 <br />5176.1 <br />5182.7 <br />5182.7 <br />5184 . 1 <br />5184.1 <br />5188.6 <br />5194.8 <br /> <br />16 <br />