Repair of LA 27 bridges over I-10 was completed by SDR. The overpass northbound concrete bridge and southbound steel bridge were both impacted by a truck, causing severe damage to both bridges. Repair work included the replacement of the exterior steel girder, heat straightening of interior steel girders, partial deck replacement, splicing of fractured prestressing strands, restoration of concrete section, and application of externally bonded Carbon Fiber Reinforced Polymers (CFRP). Repairs were completed while both bridges remained in operation.
SDR’s role included inspection of the damaged bridges, design of repair works, development of construction plans, and construction support.