Vegetative Roughness in Flood Control Channels

by Gary E. Freeman, (M.ASCE),
David R. Derrick,
William J. Rahmeyer, (M.ASCE),

Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water


Laboratory flume tests and field evaluations were undertaken as a part of the Flood Control Channels Research Program to determine hydraulic roughness values for various types of floodplain vegetation that might be found in US floodplains. Tests were conducted for single plant species and for groupings of up to three plant species. Field tests were also undertaken to relate the flume work to actual field study sites on streams. Data from the field sites yielded results similar to those obtained from the laboratory testing.

Subject Headings: Field tests | Laboratory tests | Hydraulic roughness | Floods | Vegetation | Flumes | Channels (waterway)

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