Site selection and collection of bridge-scour data in Delaware, Maryland, and Virginia

TL;DRAbstract

Scour in stream channels is the leading cause of bridge failure. Accurate field measurements of scour are difficult to obtain because of the flow conditions at bridges during floods and the inability of existing measuring equipment to function under those conditions. This report describes criteria and methods that were developed by the U.S. Geological Survey to collect base-line data concerning the bridge structure, channel morphology, and bed material; and to collect streambed-profile and stream-velocity data during floods.

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