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INTERSTATE 10 BRIDGE OVER LAKE PONTCHARTRAIN – MAIN SPANS

Bridges

This joint venture project for the Louisiana Department of Transportation and Development the was for the critical 1.1-mile long, high rise portion of the twin Interstate 10 bridges over Lake Pontchartrain into New Orleans. This project involved construction of two 5,780-foot long parallel bridges carrying traffic over Lake Pontchartrain adjacent to the existing bridge. The 36-inch precast pile and long span girders required several 300-ton capacity crane barges.

The new bridge spans replace the existing structure that was badly damaged by hurricane Katrina. This project was mobilized in the difficult post-Katrina economic environment in New Orleans.

Interstate 10 is the main thoroughfare linking the Gulf Coast states and a key tropical storm evacuation route. The bridge is now wide enough to accommodat 6 lanes with 12-foot shoulders, and rises at mid-span to accommodate commercial navigation in Lake Ponchartrain. Potential ship impact required piers in the vicinity of the navigation channel to have pile supported waterline footings. 

New Orleans, Louisiana
Project Order: 
14