Trinity River Bridge
Steel repairs, protective systems, pedestal reconstruction, and crack injection formed a broad restoration scope for TRE Bridge 612.44.
Delta Structural Technology completed work on the TRE Trinity River Bridge project, identified as bridge 612.44. The proposed restoration package covered both the steel superstructure and concrete supports. Its breadth included member repairs, bracing, connections, coatings, pedestal reconstruction, and crack injection, reflecting the range of conditions involved in an existing truss bridge.
- Market
- Transportation
- Services
- Steel and concrete bridge restoration
- Structural members
- Pedestals
Project challenge
The bridge scope brought together different materials and repair mechanisms. Steel work included end-post straightening, floor-beam repair, bracing replacement, and connection work. The concrete supports required a separate set of treatments. Organizing these activities required clear definition of the individual locations so that member repairs, surface protection, and support restoration could be planned as connected work.
Project approach
Delta’s proposed steel scope included heat straightening the southeastern end post, replacing lower and upper lateral bracing, repairing floor beams, replacing specified rivet connections, removing pack rust, and applying the designated coating systems. Concrete work included reconstructing truss pedestals on Pier 12 and epoxy injection at specified cracks in Piers 10, 11, and 12 and Abutment 13. Removal of ballast and other debris was also part of the proposed support-area work.
Delivery and coordination
The project breakdown separated the repair operations by member or support location. That organization was important because the methods ranged from steel alignment and connection work to concrete reconstruction and epoxy injection. Coating work also had to be connected with repair and rust-removal activities. The proposal’s itemized structure provided a basis for coordinating those different operations within the bridge restoration effort.
Project significance
The Trinity River Bridge project illustrates a multi-material restoration scope. Its technical emphasis is the need to consider structural members, connections, support concrete, and protective systems together. A repair program that identifies each of those interfaces can address the bridge as an interconnected structure while retaining location-specific treatment details.
