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Chapter 9: Water and Sediment Control Structures

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Pages 199-244 (doi:10.13031/swce.2013.9) in Soil and Water Conservation Engineering, 7th Edition . Copyright 2013 American Society of Agricultural and Biological Engineers, St. Joseph, Mich.
Authors:   Rodney L. Huffman, Delmar D. Fangmeier, William J. Elliot, Stephen R. Workman
Keywords:   Soil, water, conservation, environment

Introductory paragraphs: In recent years, considerable emphasis has been placed on "natural" engineering of water conveyances and structures. Such methods are useful and beneficial in many situations (see Chapter 10); however, there are situations where "soft" structures are ineffective or uneconomical. For example, where energy must be dissipated quickly, hard structures usually provide the most practical solution. This chapter presents several examples of hard structures used for conveyance, flow control, and energy dissipation.

Earth embankments are used in various storage and flood control structures. The ready availability and low cost of earthen materials make them an ideal choice for construction of dams and dikes for ponds, reservoirs, waste-holding structures, and flood control levees. Another important application is in the design of sedimentation basins. Many jurisdictions now require sediment control practices on disturbed lands, such as construction sites, open mines, and agricultural lands, which tend to be highly erodible. This chapter presents fundamentals of design of earth structures and introduces their use as sedimentation basins.

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