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US 90 Eastbound
Pass Christian to Bay St. Louis, Mississippi

Highway US 90 runs East-West along the Gulf shore of Mississippi. This photo shown in figure 1 was taken September 11, 2005 just west of Pass Christian, MS where the bridge starts to carry US-90 over St. Louis Bay. The easternmost span of the westbound bridge has been thrown north more than 50 feet by Hurricane Katrina.

Figure 2 is a view looking north at the east end of St. Louis Bay. The superstructure units for the US 90 bridge have been displaced to the north and many have dropped off the piers. The failure pattern is typical of what has been witnessed in past earthquakes.

shows section of bridge detached from rest

Figure 1: The easternmost span of the westbound US 90 bridge was thrown north more than 50 feet.

Photo: J. O'Connor (for MCEER)

bridge pieces in the water in an accordion-like pattern

Figure 2: The superstructure units for the bridge were displaced to the north and many dropped off the piers.

Photo: J. O'Connor (for MCEER)

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