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<br />Alamosa River <br /> <br />Summary of Flood Hydrology <br /> <br />Alamosa River Above Terrace Reservoir <br /> <br />Elevation - 8600 feet <br />D.A. - 107 sq. mi. <br />55 years of record <br /> <br />Q2 = 943 cfs <br />Qs = 1450 cfs <br />QlO = 1850 cfs <br />Q20 = 2280 cfs <br />Qso = 2930 cfs <br />Q 100 = 3480 cfs <br />Qsoo = 5010 cfs <br /> <br />Alamosa River Below Terrace Reservoir <br /> <br />Elevation - 8400 feet <br />D.A. - 116 sq. mi. <br />45 years of record <br /> <br />Q2 = 761 cfs <br />Qs = 1050 cfs <br />QlO = 1240 cfs <br />Q20 = 1430 cfs <br />Qso = 1680 cfs <br />Q100 = 1880 cfs <br />Qsoo = 2350 cfs <br />