Hydraulic Aspects of Grade Control Structures

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by David S. Biedenharn, Corps of Engineers, Vicksburg, United States,
Terry N. Waller, Corps of Engineers, Vicksburg, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering:

Abstract: This paper describes the function of grade control structures. The primary purpose of a grade control structure is to maintain or establish a desired bed elevation in a channel. Basically this can be accomplished in one of two ways: (1) Force the degradational zone to occur at the structure where nonerodible materials prevent scour of the bed, or (2) Create a backwater condition which reduces the energy of the degradational zone to the point that it is no longer capable of scouring the bed.

Subject Headings: Drop structures | Grade control structures | Structural control | Chemical degradation | Bed materials | Scour |

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