Field Monitoring of Bridge Scour in Georgia
Gotvald, Anthony J.
Landers, Mark N.
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Scour or erosion of the streambed near the foundations of a bridge is often referred to as "bridge scour." Bridge scour is caused by the interaction between turbulent flows induced by bridge structures and the streambed. These turbulent flows erode the streambed and cause scour holes. The Georgia Institute of Technology and the U.S. Geological Survey (USGS), in cooperation with the Georgia Department of Transportation and the Federal Highway Administration (FHWA), are conducting an investigation to improve bridge scour predictions by combining field monitoring, physical modeling in the laboratory, and three- dimensional numerical modeling of bridge scour. By integrating three-dimensional numerical modeling with laboratory and field measurements, it is proposed that some of the uncertainties associated with bridge scour predictions would be significantly reduced.