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By Bill Gunston

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Service along remaining lines was restored on September 2, 2005. New Orleans Public Belt Railroad. About 1/3 of the nation's east-west rail freight crosses the Mississippi River on the Huey P. Long Bridge, but damage to railroad tracks by Hurricane Katrina severely reduced train travel into New Orleans. Most train traffic was rerouted to Memphis, Tennessee and St. Louis, Missouri. There was damage to approximately 10 miles of New Orleans Public Belt Railroad track between Poland Avenue and Gentilly.

The continuous nature of the spans is believed to be a major factor in the bridge sustaining little damage compared with the I-10 twin span. The vent holes, which help mitigate buoyant forces, are also believed to be a significant reason for the relatively small amount of damage. Aside from damage at the draw bridge, other damage was limited to erosion at the approach ways. The estimated cost for emergency repairs, which were completed around September 20, 2005, is approximately $327,000. LA-1 Over Camanada Bay The bridge over Camanada Bay was built in 1961 and carries state road LA-1 over to Grand Isle.

MO On-Ramp at Mid-Bay Crossing of US-90/98 This long (30 span), curved, single lane on-ramp was built in the early 1970's. 49) on sloping, rectangular column bents with dropped bent caps and driven pile foundations. 50). This allowed the girders to move to the north and resulted in damage to five spans as well as the bent caps that supported them. Because the bridge is on a curve, the spans were shoved together as they moved laterally, which may have prevented them from being pushed off the bent caps.

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