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<br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />I. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />I. <br />. <br />. <br />'. <br />. <br />. <br />. <br />'. <br />. <br />. <br />. <br />i. <br />. <br />. <br />I. <br />'. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br /> <br />Title of Study: <br />County: <br />Calculations By: <br /> <br />USGS HvdroloQV Worksheet <br /> <br />Page 1 <br /> <br />FHBM - Dove Creek, Colorado <br />Dolores <br />jag <br /> <br />Date: <br /> <br />August 8, 2000 <br /> <br />Documentation <br />This workbook estimates 1 OO-year discharges for approximate floodplains in Colorado using the following <br />source: <br />Vaill, J.E. 2000. Analysis of the Magnitude and Frequency of Floods in Colorado. U.S. <br />Geological Survey Water Resources Investigations Report 99.4190. Denver, Colorado. <br /> <br />River Basin <br /> <br />I Southwest <br /> <br />Return Interval <br /> <br />lOa-year <br /> <br />.1 <br /> <br />.1 <br /> <br />Regression Equation Data <br />Q=aA.X' <br /> <br />Where: <br />Q = <br />A = <br />x= <br /> <br />a = <br />b = <br />c = <br /> <br />Discharge (cfs) <br />Drainage Area (square miles) <br />1 <br /> <br />coefficient = <br />coefficient = <br />coefficient = <br /> <br />118.400 <br />0.715 <br />1 <br /> <br />Limited by: <br />Minimum Drainage Area = <br />Maximum Drainage Area = <br /> <br />Drainage Area Description <br />Dove Creek at Downstream Town Limits <br /> <br />Discharge Calculations <br />Drainage <br />Area 10 <br />1 <br /> <br />818100 <br />USGS_Hydrology.xl. <br /> <br />5.5 square miles <br />988 square miles <br /> <br />Drainage <br />Area (mi2) <br />8.51 <br /> <br />Not <br />Required <br /> <br />100-year <br />Discharge (cfs) <br />547 <br />