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<br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />I. <br />'. <br />. <br />I. <br />. <br />. <br />I. <br />'. <br />. <br />. <br />. <br />. <br />. <br />j. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />'. <br />. <br />. <br />I. <br />, <br />;. <br />. <br />I. <br />i. <br />. <br />. <br />. <br />. <br />. <br />. <br /> <br />CWCS HvdroloQV Worksheet <br /> <br />Page 3 <br /> <br />Title of Study: <br />County: <br />Calculations By: <br /> <br />FIS - Adams County, Colorado and Incorporated Areas <br />Adams <br />jag Date: August 10, 2000 <br /> <br />Documentation <br />This workbook estimates 1 OO-year discharges for approximate floodplains in Colorado using the following <br />source: <br />Browning, TW. 1999. Guidelines for Determining 1 OO-year Flood Flows for Approximate <br />Floodplains in Colorado, Version 4.0. Colorado Water Conservation Board. January. <br /> <br />River Basin <br /> <br />~ <br /> <br />SPL-4: Soutf1 Platte, Northern Footf1ills Subregion <br /> <br />Status of Regression Equations for this sub-region: <br /> <br />Accepted <br /> <br />Regression Equation Data <br /> <br />Q=aAb <br /> <br />Where: <br />Q = Discharge (cfs) <br />A = Drainage Area (square miles) <br />a = coefficient = <br />b = coefficient = <br /> <br />800.8 <br />0.478 <br /> <br />limited by: <br />Minimum Drainage Area = <br />Maximum Drainage Area = <br /> <br />1 square miles <br />445 square miles <br /> <br />Discharge Calculations <br />Drainage <br />Area ID <br />SPL-4:1 <br />SPL-4:2 <br />SPL-4:3 <br />-- ---- <br />SPL-4:4 <br /> <br />Drainage 100-year <br />Area (mi2) Discharge (cfs) <br />0.01 Outside Bounds <br />1.71._ ~1 !.Q:3~_~__. <br />7.31 2,072 <br />0.01'-- - -OutsideBoun-ds- <br /> <br />Drainage Area Description <br />_ I oddCre~k,}ributary }_at conflue,n,c_e.!'itb..T o_d~<:;reek <br />Tod.dCreek,__Iributary 4 at conflue,nc~..,."it~ Todd Creek <br />Todd Creek at confluence with South Platte River <br />____u_ N.oi1t1 Tnb-uta_ry 7 ~aTc();']uencewfthS_outtiPjat1e Rlver---- <br /> <br />8110/00 <br />CWCB_Hydrolcrgy.xls <br />