American Society of Civil Engineers


Woody Debris Influence on Flow Resistance


by Steven R. Abt, (Prof., Dept. of Civil Engrg., Colo. State. Univ., Ft. Collins, CO 80523), Syndi J. Dudley, (Dir., Wtr. Res. Sec., Louis Berger & Assoc., Inc., Las Vegas, NV, 89119), and J. C. Fischenich, (Res. Engr., Env. Lab., USAE WES, Vicksburg, MS, 39180)

pp. 42-47, (doi:  http://dx.doi.org/10.1061/40382(1998)6)

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Document type: Conference Proceeding Paper
Part of: Engineering Approaches to Ecosystem Restoration
Abstract: A study was conducted to assess the influence of woody debris on the resistance to flow that may be expected in small, third, and/or fourth order stream channels. A stream site was identified that had naturally matured with growth and debris. Flows were conveyed through the channel, with and without debris, and manning’s n values were determined. The results indicated that the resistance to flow with debris increased nearly 40% over the no debris condition.


ASCE Subject Headings:
Channel flow
Debris
Floods
Flow resistance
Stream channels
Wood