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<br />.. <br />. <br />. <br />I: <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br /> <br />eweB HvdroloClV Worksheet <br /> <br />Page 2 <br /> <br />Title of Study: <br />County: <br />Calculations By: <br /> <br />FHBM - Dolores County, Colorado Unincorporated Area <br />Dolores <br />jag Date: August 9, 2000 <br /> <br />Documentation <br />This workbook estimates 100-year discharges for approximate floodplains in Colorado using the following <br />source: <br />Browning, TW. 1999. Guidelines for Determining 100-year Flood Flows for Approximate <br />Floodplains in Colorado, Version 4.0. Colorado Water Conservation Board. January. <br /> <br />River Basin <br /> <br />..~ "':-3 <br /> <br />DLR.l: Dolores, Dolores River Subregion <br /> <br />Status of Regression Equations for this sub-region: Draft <br /> <br />Regression Equation Data <br />Q=aAb <br /> <br />Where: <br />Q = Discharge (cfs) <br />A = Drainage Area (square miles) <br />a = coefficient = <br />b = coefficient = <br /> <br />213.8 <br />0.601 <br /> <br />Limited by: <br />Minimum Drainage Area = <br />Maximum Drainage Area = <br /> <br />2 square miles <br />1080 square miles <br /> <br />Discharge Calculations <br />Drainage <br />Area ID <br />D19 <br />D20 <br />D21 <br />D22 <br />D23 <br /> <br />Drainage <br />Area (mi2) <br />43.98 <br />- ---------------- <br />158.05 <br />"---- -------- - -- <br />14.33 <br />16.62 <br />4.03 <br /> <br />100-year <br />Discharge (cfs) <br />2,078 <br />- - -------- <br />4,482 <br />------ -~---------- <br />1,059 <br />- - - ---- -- <br />1,158 <br />494 <br /> <br />Drainage Area Description <br />Disapp()intment C~eek- Upstr~am.()t. Bear_Creek . . .~._ <br />n DisilP'po~ntrnentgreek - Upstreal11.o~an~",iguel Co. Line <br />. Morrison_Cre.ek:.UJlstream of Mouth _ __._ <br />Bear Creek - Upstream of Mouth <br />Disappoint.Creek Trib. - Upstream of San Miguel Co. Line <br /> <br />8/9/00 <br />eWeS_Hydrology.xls <br />