Determination of Flood Frequency as a Function of Mitigation Expenditure

by Paul Koch,
Jeri Cauthorn,
Roger Kilgore,



Document Type: Proceeding Paper

Part of: WRPMD'99: Preparing for the 21st Century

Abstract:

(No paper) This paper describes an approach to the determination of flood frequency as a function of moneys that could be spent to address a road flooding problem caused by runoff from a 2-square-mile residential area near Washington, D.C. Flood mitigation options included both culvert resizing and the provision of detention areas upstream. Challenges faced in completing this project included establishing a practical limit on the number of detention sites to be considered, and right-of-way issues in an area fully developed for single family homes. The overall economic analysis was used by the county government to select a solution that was most desirable in terms of cost and benefit.

Subject Headings: Flood frequency | Stormwater management | Economic factors | Mitigation and remediation | Benefit cost ratios | Runoff | Rivers and streams | Washington | United States

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