Bridge Superstructure Fabrication

This subcontract involves the fabrication of truss bridge superstructures for prime contractors working on Nebraska Department of Transportation projects. The fabrication process utilizes ASTM A847 cold-formed welded tubing and weathering steel conforming to ASTM A588, A242, or A606 standards. All welding must be performed in accordance with ANSI/AWS D1.1 and AASHTO LRFD Guide Specifications to ensure structural integrity. The contractor is responsible for providing PE-sealed structural calculations and bridge reactions, delivering a completed superstructure that is ready for shipment and erection. The project is categorized under NAICS code 332312 and is designated for performance in York.