Hale Boggs Memorial Bridge

Louisiana DOT

Project Summary

The Hale Boggs Memorial Bridge is an 11,248 foot long structure that carries four lanes of I-310 over the Mississippi River from Luling, to Destrehan, LA. When it was first opened in 1983, it was the first cable stayed bridge to cross the Mississippi River, with its record breaking main span length of 1,222 feet. In support of that rehabilitation effort, TranSystems performed a hands-on inspection of the main cable stayed unit and the main span towers. TranSystems developed and implemented a comprehensive program for the following main cable stayed unit components: in-depth inspection of the components of the weathering steel trapezoidal box girders, orthotropic deck plate, and wind fairings; in-depth inspection of the cross-girders; in-depth inspection of the towers; ultrasonic thickness testing of weathering steel components; and providing recommendations for necessary repairs and/or maintenance activities. Based on the results of the inspection and analysis, TranSystems prepared the rehabilitation design for each of the cracked members and connections.

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