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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.
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
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.
Road bridge Bridge scour caused by jack posts installed 4 days earlier caused instability and led to the partial collapse of the northern arch 0 dead, 0 injured (the bridge was closed to traffic at the time) Partial collapse (northern arch) Fully demolished in July 2020 and rebuilt. [146] Rebuilt bridge opened to traffic in October 2021. [147]
Riprap causes morphological changes in the riverbeds they surround. One such change is the reduction of sediment settlement in the river channel, which can lead to scouring of the river bed as well as coarser sediment particles.
Pages in category "Weapons countermeasures" The following 67 pages are in this category, out of 67 total. This list may not reflect recent changes. *
Pages in category "Mine warfare countermeasures" The following 44 pages are in this category, out of 44 total. This list may not reflect recent changes. A.
Bridges may collapse due to bridge scour around one or more bridge abutments or piers. In 2004, the remnants of Hurricane Frances , and then Hurricane Ivan , caused a large number of washouts in western North Carolina and other parts of the southern Appalachian Mountains , closing some roads for days and parts of the Blue Ridge Parkway for months.