Cross Sectional Area Reduction Floodway Method

by Joseph W. Labant, Jr., Greenhorne & O'Mara Inc, United States,
Dale A. Lehman, Greenhorne & O'Mara Inc, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

Encroachment on the floodplain, such as structures and fill, reduces the stream's flood carrying capacity, increases the flood heights and velocities, and increases flood hazards in areas beyond the encroachment itself. The Cross Sectional Area Reduction Method provides a means by which sound floodplain management can be exercised while maximum benefits from development can be realized. This alternative method employs strip development criteria and density floodway criteria. Thus, application of the Cross Sectional Area Reduction Method will result in both effective floodplain management and economic growth through the realization of development within an otherwise restricted area.

Subject Headings: Floods | Management methods | Water flow | Stream channels | Spillways | Channel flow | Water management

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