Chapter IV. Sediment Sources and Sediment Yields

Task Committee on Preparation of Sedimentation Manual, Committee on Sedimentation of the Hydraulics Division, ASCE

Serial Information: Journal of the Hydraulics Division, 1970, Vol. 96, Issue 6, Pg. 1283-1329

Document Type: Journal Paper

Discussion: Bruschin Jacques (See full record)
Discussion: Fleming George (See full record)
Discussion: Happ Stafford C. (See full record)
Closure: (See full record)


Methods and procedures are analyzed for determining erosion rates from water-borne sediments, along with sediment yield or deposition rates at locations downstream from the erosion source. Emphasis is placed on the erosion types and processes which cause the most engineering problems, either by virtue of the large sediment quantities involved or by the locally severe damages incurred. Accelerated erosion and deposition rates from man's activities are of special concern; these derive from sheet erosion processes on tilled lands and from such specialized activities as strip mining, urban development, construction of highways and utilities, and sheet erosion on any portion of the land surface that is denuded or inadequately protected. Erosion and deposition rates caused by channelization or runoff waters in upland gullies and downstream drainageways are also considered. Present bases for estimating these rates, on both a storm and an average annual basis, are given.

Subject Headings: Sediment | Erosion | Land use | Infrastructure construction | Rivers and streams | Mines and mining | Lifeline systems

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