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Last modified
1/25/2010 7:14:44 PM
Creation date
10/5/2006 3:41:21 AM
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Floodplain Documents
County
Statewide
Community
Statewide
Basin
Statewide
Title
Methodology for Evaluation of Feasibility: Multijurisdictional Urban Drainage and Flood Control Projects
Date
2/1/1977
Prepared By
UDFCD
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />I <br />I <br />I <br />! I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />27 <br /> <br /> Table 1I-8 <br /> An n u a 1 <br /> Annual Damages <br /> Alternative Damages Prevented <br /> No Change 500,000 0 <br /> 2-year 420,000 80,000 <br /> 10-year 130,000 370,000 <br /> 100-year 100,000 400,000 <br />These benefits should now be compared with the costs of the <br /> <br />projects to find the economic optimum design frequency, considering <br />only the maximization of net benefits, Information for this is <br />tabulated below. <br /> <br /> Table 1I-9 <br /> Annual Annu a 1 Annual <br />Design Cost Benefits Net Benefits <br />No Cha nge 0 0 0 <br />2-year 50,000 80,000 30,000 <br />10-year 240,000 370,000 130,000 <br />100-year 300,000 400,000 100,000 <br /> <br />The graph below shows maximum net benefits occurring at a design <br />frequency near to ten-years. <br />
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