Diversion Structure for Peak Flow Reductionby Hasan Nouri, Rivertech Inc, Newport Beach, CA, USA,
Abstract: The flood control requirements of a planned development in the City of Orange, California were such that the peak discharges ranging from an annual flood up to 25-year return period be significantly reduced, not only to offset the increased runoff as a result of the development but to alleviate some of the existing drainage problems downstream from the development. Because of the high cost of land, design of a conventional detention basin did not present the most cost-effective solution. A special inlet/outlet diversion structure was analyzed and designed to convert a planned park into a detention basin during peak flow periods for the specified range of recurrence intervals. Extensive interaction between engineers and landscape architects resulted in a solution which is cost-effective, has low maintenance cost and disturbs the park operation very infrequently.
Subject Headings: Peak flow | Financial management | Floods | Detention basins | Parks | Hydraulic structures | Water discharge | Urban areas | North America | California | United States
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