WIT Press


Analysis Of Flow Reduction Factors For Storm- Water Management Regulations

Price

Free (open access)

Paper DOI

10.2495/ENV980221

Volume

32

Pages

10

Published

1998

Size

828 kb

Author(s)

Eugene Golub, Edward Dauenheimer, Robert Dresnack and Ezra Ehrenkrantz

Abstract

Two watershed models were reviewed in this study on the utilization of flow reduction factors in detention basins. The watersheds were the Middle Brook and the Devils-Cedar Brook basins in New Jersey. A flow reduction factor set of 75%, 80%, 90 %, on average, was used in the Middle Brook Model with ultimate flow conditions reduced to a fraction of undeveloped conditions in the watershed. Similarly, a flow reduction factor set of 40%, 65%, 65% was used in the Devils-Cedar Brook Model with ultimate flows reduced to a fraction of existing conditions at the time of the study. A plot of ultimate to pre-ultimate flow ratios for sub-watersheds of the Middle and Devils Brooks vs. the

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