SAS Temporary Works

Completed in 2009 by American Bridge, the SAS Temporary Works project consisted of the design and construction of twin 607.5m eight-span truss bridges and a 160m erection tower. The temporary bridges were used to receive, launch, align, and support the permanent twin orthotropic box girder (OBG) superstructure to allow the main bridge cable to be anchored in its deck. After completion of the main and suspender cables, ABFJV transferred the load of the permanent superstructure from the temporary bridge to the new bridge’s cable suspension system. The 160m erection tower functioned as a gantry to lift and place permanent steel tower segments weighing up to 1,100mt. The project included approximately 25,000mt of fabricated structural steel and had a value of about $325M, including removal. Design engineer: American Bridge Engineering/Klohn Crippen Berger.