Laserfiche WebLink
<br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />I. <br />. <br />. <br />. <br />. <br />I. <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 />. <br />. <br />i. <br />. <br />. <br />I. <br />. <br />. <br />. <br />'. <br />. <br />. <br />i. <br />. <br />. <br />. <br /> <br />Title of Study: <br />County: <br />Calculations By: <br /> <br />USGS HvdroloClV Worksheet <br /> <br />Page 1 <br /> <br />FHBM - Dolores County, Colorado Unincorporated Areas <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 />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 />Southwest <br /> <br />Return Interval <br /> <br />. m_~~--;j <br /> <br />Regression Equation Data <br />Q=aAbX' <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 />5.5 square miles <br />988 square miles <br /> <br />Discharge Calculations <br />Drainage <br />Area ID <br />SJ01 <br />--- -- - <br />SJ02 <br />SJ03 <br />SJ04 <br />SJ05 <br />SJ06 <br />SJ07 <br />SJ08 <br />SJ09 <br />SJ10 <br />SJ11 <br />SJ12 <br />SJ13 <br />SJ14 <br />SJ15 <br /> <br />Drainage Area Description <br />... C()~~E!..dCanyol'1.c;reek - Upstreilmof west tributilry. .. <br />Coal. BedCanyon_Creek :tJpstreamofMouth <br />Coal Bed Canyon Creek, West Trib,: Upstream of Mouth <br />Coal BedCanyonCreek, Mid: Trib. - UpstreamofMouth <br />White flats Draw - Upstream of Mouth <br />Chico Creek - Upstream of Mouth <br />Monument Creek - Upstream of West Monument Creek <br />Monument Creek- Upstream of Canyon <br />West Monument Creek - Upstream of Mouth <br />Cross Canyon Creek. Upstream of Alkali Creek <br />Cross Canyon Creek - Upstream of Dove Creek <br />Cross Canyon Creek - Upstream of Utah State line <br />Dove Creek. Upstream of Town of Dove Creek <br />Dove Creek. Upstream of Mouth <br />~I~il.li..c;reek- Upstream_of Mouth <br /> <br />8/9/00 <br />USGS_Hydrology,xls <br /> <br />100-year <br /> <br />Drainage <br />Area (mi2) <br />15.51 <br />100.67 <br />10.73 <br />6.28 <br />16.26 <br />40.74 <br />14.58 <br />30.45 <br />11.40 <br />22.71 <br />92.31 <br />151.25 <br />8.06 <br />28.31 <br />24.35 <br /> <br />Not <br />Required <br /> <br />.~ <br /> <br />100-year <br />Discharge (cfs) <br />841 <br />3,202 <br />646 <br />440 <br />870 <br />1,677 <br />804 <br />1,362 <br />675 <br />1,104 <br />3,010 <br />4,284 <br />526 <br />1,293 <br />1,161 <br />----- <br />