Location: St. Louis, MO
This project consisted of removing a portion of the center wall of the railroad deck of the Eads Bridge to allow for the installation of a new railroad crossover. The original plan was Value Engineered to eliminate the steel jump span bridge and closure and partial removal of the existing roadway deck. This change added filling the East Tower with large extruded polystyrene blocks and to jacket the existing concrete girders with tensioned steel members to enable support of the road deck above without the center wall support. After all the work was complete the existing tracks were replaced with the railroad crossover. All of the work on this project was performed with no significant delays to travel times for Metro’s passengers. St. Louis Bridge worked off-peak revenue hours, with live train traffic adjacent to the work zone, 7 days a week to complete the project in 5 months. Also, with the Value Engineering plan the roadway deck remained open to avoid disruption to a major river crossing between downtown St. Louis and Illinois.