Songsu Bridge Collapsed 1994
The Songsu Bridge, which spans the Han River in Seoul,
South Korea, fell
without warning on October 21, 1994, killing 32. Investigation revealed that
inadequate welding on the steel supports caused an overloaded section of the
bridge to give way. The collapse prompted
city officials to inspect all of the bridges along the river. Recently, several Asian governments have mandated the implementation of structural-health monitoring as part of new bridge construction.