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Last modified
11/23/2009 12:58:08 PM
Creation date
10/4/2006 10:23:17 PM
Metadata
Fields
Template:
Floodplain Documents
County
Statewide
Community
State of Colorado
Stream Name
All
Title
Guidelines for Determining 100-year Flood Flows For Approximate Floodplains in Colorado
Date
1/1/1999
Prepared For
State of Colorado
Prepared By
CWCB
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />South Platte River Basin <br />Regression Analysis Summary <br /> <br />Sub- Sub- #of R Squared Std <br />region region Regression Data Min. Max. (Regression Error of <br />Name Description Equation Points D.A. D.A. Correlation) Estimate <br />SPL-I Eastern Q = 707.9(A)"54 17 2 1090 .920 34% <br /> Plains <br />SPL-2 Southern Q = 1005.5(A)"o" 29 1 170 .968 18% <br /> Foothills <br />SPL-3 Central Q = 762.4(A)'''' 67 1 175 .927 23% <br /> Foothills <br />SPL-4 Northern Q = 800.8(A}'" 81 1 445 ,756 48% <br /> Foothills <br />SPL-5 Mountains Q = 39.4(A}"O 27 2 480 ,938 29% <br /> <br />The following stream reaches and geographic areas are exempt from the South Platte River Basin <br />Guidelines: <br /> <br />. South Platte River mainstem <br />. St. Vrain Creek mainstem below Lyons <br />. Big Thompson River mainstem below Drake <br />. Cache La Poudre River mainstem below Poudre Park <br />. South Park <br />. Urban Drainage and Flood Control District <br />. City of Fort Collins incorporated areas <br />. Town of Wellington <br />. Blackhawk and Central City incorporated areas <br />. Other areas where the local government prefers to use their own drainage criteria in lieu of <br />the Guidelines <br /> <br />20 <br />
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