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Once a bridge is evaluated as scour critical, the bridge owner should prepare a scour plan of action to mitigate the known and potential deficiencies. The plan may include installation of countermeasures, monitoring, inspections after flood events, and procedures for closing bridges if necessary.
Wing walls can be classified according to their position in plan with respect to banks and abutments. The classification is as follows: Straight wing walls: used for small bridges, on drains with low banks and for railway bridges in cities (weep holes are provided).
Pages in category "Bridge disasters caused by scour damage" The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes.
Bridge reconstruction started in 1969 and was completed in 1971 Countess Wear Bridge: Exeter, Devon: United Kingdom 6 January 1968: Brick Arch bridge Construction support fault. Scour under raft foundation Pier 23 collapsed Bridge repaired and reinforced Britannia Bridge: Menai Strait: United Kingdom 23 May 1970: Railway tubular bridge
Hydrodynamic scour is the removal of sediment such as silt, sand and gravel from around the base of obstructions to the flow in the sea, rivers and canals. Scour, caused by fast flowing water, can carve out scour holes, compromising the integrity of a structure.
The river banks next to the lock and dam turned out to be much less stable then had been planned for, and the river conditions much worse than anticipated. After a December freshet, a 40 feet (12 m) long portion of a riprap protected section fell into the river, and the dam was being threatened with undermining by scour.
The Schoharie Creek Bridge was a New York State Thruway bridge over the Schoharie Creek near Fort Hunter and the Mohawk River in New York State. On April 5, 1987, it collapsed due to bridge scour at the foundations after a record rainfall. The collapse killed ten people. The replacement bridge was completed and fully open to traffic on May 21 ...
Hydrodynamic scour, the removal of sediment such as sand and silt from around an object by water flow Bridge scour, erosion of soil around at the base of a bridge pier or abutments via the flow of air, ice, or water; Tidal scour, erosion of substrate via tidal flow; Ice scour or ice gouge, a drifting ice feature that scrapes the seabed