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FLOOD05142
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FLOOD05142
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Last modified
1/25/2010 6:48:23 PM
Creation date
10/5/2006 1:17:12 AM
Metadata
Fields
Template:
Floodplain Documents
County
Dolores
Community
Rico
Basin
San Juan/Dolores
Title
Floodplain Information Report
Date
9/1/2000
Prepared For
Rico
Prepared By
CWCB
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />II <br />:1 <br /> <br />:1 <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />,I <br />I <br />I <br />II <br />I <br />.1 <br />I <br />, <br />, <br />I <br />I <br />I <br /> <br />CWCS HvdroloQV Worksheet <br /> <br />Page 1 <br /> <br />Title of Study: <br />County: <br />Calculations By: <br /> <br />FIRM - Town of Rico <br />Dolores <br />jag <br /> <br />Date: <br /> <br />August 15. 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 />I OLR-l: Dolores, Dolores River Subregion <br />Status of Regression Equations for this sub-region: <br /> <br />B <br /> <br />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 /> <br />Drainage Drainage 100-year <br />ArealD Orainage Area Description Area (mi2) Discharge (cfs) <br />D1 Dolores - Upstream of Silver Creek 72.43 2,804 <br />D2 Dolores - Al Rico Incorporaled Limits 82.75 3,038 <br />D3 Silver Creek - Upstream of Mouth 7.13 696 <br />D4 Iron Draw - Upstream of Mouth 0.84 Outside Bounds <br />D5 Spear Creek - Upstream of Mouth 0.30 Outside Bounds <br />D6 Sulfur Creek - Upstream of Mouth 0.83 Outside Bounds <br /> . <br /> <br />8/15/00 <br />CWCB_Hydrology.xls <br />
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