City of Philadelphia, Pennsylvania
Built in 1897, the 1,250 ft-long Strawberry Mansion Bridge over the Schuylkill River consists of four river spans and three approach spans at each end. The 200 ft-long main spans are triple, three hinged, spandrel braced steel arches, and the approach spans are 75-ft, triple-deck Warren truss spans. TranSystems’ rehabilitation designs were based on in-depth inspections and engineering studies. When the bridge was closed to traffic, our two-phase design effort first focused on the deck, floorboards and stringers, along with construction of a promenade and ornamental lighting. The project received a Pennsylvania Partnership for Highway Quality Structural Award, and an FHWA Merit Award-Historic Preservation.