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<br /> ---- - --- ----- -- <br />I <br /> 25 <br />I <br /> TABLE 6 <br />I FLOOD FREQUENCY - ELEVATION AND DISCHARGE DATA <br /> MIDDLE ST. VRAIN CREEK, BOULDER COUNTY, COLORADO <br />I lO-Year Flood 50-Year Flood lOO-Year Flood 500-Year Flood <br />Ref. Station Stream Bed Crest Peak Crest Peak Crest Peak Crest Peak <br /> Point Fr. Mouth Elevation Elevation Discharge Elevation Discharge Elevation Discharge Elevation Discharge <br />I Number (Feet) Identif . (Ft. MSL) (Ft. MSL) (ds) (Ft. MSL) (ds) (Ft. MSL) (ds) (Ft. MSL) (ds) <br />151. 6 240+40 76'}8.'}0 7701.13 510.00 7702.37 1 060~ 00 77 03.17 1460.00 7105.01 2900.00 <br />I l51. 7 240+85 7700.50 7702.95 510.00 7704.51 1060.00 7705.04 1460.00 7706.22 2900.00 <br /> 151. 8 24l+O0 7700.50 7703.97 510.00 7705.32 1060.00 7706.14 1460.00 7706.97 2900.00 <br />I 152 241+35 7701.')0 7704.H 510.00 7705.57 1060.00 7706.50 1460.00 77C7.88 2900.00 <br />I l52.l 241+90 7703.20 7705.86 510. 00 7707.25 1060.00 7708.19 1460.00 7709.63 2900.00 <br />152.2 242+00 7703.20 7706.82 510.00 7708.66 1060.00 770,}.30 1460.00 7710.50 2900.00 <br />I 152.3 242+55 7704.80 7707.48 510.00 7708.74 1060.00 nO'}.79 1460.00 77 11 . 18 2,}00.00 <br /> 152.7 244+60 7713.00 7715.30 51 0.00 7716.91 1060.00 7717.29 1460.00 7718.25 2900.00 <br />I l52.8 245+00 7713.90 7716.54 510.00 7717.80 1060.00 7718.20 1460.00 7719.18 2900.00 <br />I l52.9 245+15 7713.90 7718.14 510.00 7719.10 1060.00 7719.57 1460.00 7720.85 2900.00 <br />l53 246+20 7715.70 7719.18 510.00 7719.53 1060.00 7720.32 1460.00 <br /> 7722.43 2900.00 <br />I 153.9 246+65 7716.90 7719.56 510.00 7720.74 1060.00 7721.21 1460.00 <br /> 7723.37 2900.00 <br /> l54.l 246+75 7716.90 7719.10 510.00 7721.40 1060.00 7722.77 1460.00 7724.98 2900.00 <br />I l54.2 247+20 771fl.60 7720.77 510.00 7722.00 1060.00 7722.73 1460.00 772').05 2900.00 <br />I 154.7 250+20 772Q.3rJ 7731.58 510.00 7732.82 1060.00 7733.38 1460.00 7734.82 2900.00 <br />l54.8 250+70 7730.70 7733.30 510.00 7734.16 1060.00 7734.81 1460.00 7736.27 2900.00 <br />I 154.9 250+85 7730.70 77 33.61 510.00 7736.37 1060.00 7737.04 1460.00 7738.62 2900.00 <br /> l55 251+55 7733.30 7735.67 510.00 7737.01 1060.00 7737.75 1460.00 77 39.54 2900.00 <br />I l55.l 251+90 7734.40 7737.00 510.00 7738.80 1060.00 7739.27 1460.00 7740.75 2900.00 <br /> 155.2 252+25 7735.70 77 38. B 510.00 7739.82 1060.00 77 40.57 1460.00 7742.03 2900.00 <br />I <br />I <br />I <br />