Upcoming Events

The ASCE New Orleans Branch

Presents

The Huey P. Long Bridge is currently undergoing a massive renovation project to expand the 75-year-old bridge. The project will expand the structure from two 9-foot lanes to three 11-foot lanes with a 2-foot inside lane and an 8-foot outside lane. It will also include new signalized intersections to replace the traffic circle at Jefferson Highway and Bridge City Avenue in Jefferson Parish, LA. The foundations at the Huey P. Long Bridge Expansion presented special challenges for construction due to the requirements for very deep drilled shafts in the Mississippi River beneath the existing bridge structure. Drilled shafts were constructed to depths of approximately 200ft in alluvial soils using a rotator system with full-length segmental casing, and was base grouted to improve axial resistance. This presentation describes the design and construction of the work platform to provide access to the restricted-access site beneath the existing bridge, the approach used to construct the drilled shafts, and the results of a load test program to verify the axial resistance.

The topic will be presented by Dr. Dan Brown.  Dr. Brown is recognized as one of America’s leading authorities on the construction and design of deep foundations for transportation structures.  He has authored numerous papers and reports on his research and practical experiences with deep foundation construction, testing and design.  After 23 years on the faculty at Auburn University, Dr. Brown remains active in deep foundation practice through his consulting firm, Dan Brown and Associates.