Water normally flows faster around piers and abutments making them susceptible to local scour. At bridge … See more

Stream channel instability resulting in river erosion and changing angles-of-attack can contribute to bridge scour. Debris can also have a substantial impact on bridge scour in several ways. A build-up of material can reduce the s… See more

The examination process is normally conducted by hydrologists and hydrologic technicians, and involves a review of historical engineering information about the bridge, followed by a visual inspection. Information … See more

The Hydraulic Engineering Circular Manual No. 23 (HEC-23) contains general design guidelines as scour countermeasures that are applicable to piers and abutments. The numbering in the following table indicates the HEC-23 … See more

Hydraulic Engineering Circular Manual No. 18 (HEC-18) was published by the FHWA, and includes several techniques of estimating scour depth. The empirical scour equations for live-bed scour, clear-water scour… See more

• Custer Creek train wreck
• Glanrhyd Bridge collapse
• Hintze Ribeiro Bridge collapse
• Schoharie Creek Bridge collapse… See more