H&H provided preliminary and final design for the rehabilitation of the Main Street Bridge over the Fox River in Oshkosh, Wisconsin. Work includes replacement of the deck, steel, and concrete repairs, and mechanical and electrical repairs. The project is currently under construction.
The Main Street Bridge is a 475-foot, four-lane bridge that includes a hydraulically-operated 102-foot double-leaf rolling lift bascule span. It was built in 1973. Major scope items on the bascule span include stringer and deck replacement, cleaning and painting, repairs to machinery houses, repairs to the Operator’s House, placement of new dense concrete overlay on the fixed deck over counterweight, replacement of access platforms to the machinery hydraulic cylinders, and miscellaneous steel repairs. The scope of work on the approach includes concrete deck replacement, expansion joint replacement, and steel and concrete repairs. Machinery repairs include replacement of HPUs, span operating hydraulic cylinders and tail lock cylinders, replacement of piping and hoses, and miscellaneous upgrades. The electrical scope of work includes replacement of HPU motors, installation of linear transducers at the cylinders, installation of separate SCADA and datalogging software, replacement of limit switches, and installation of new power monitoring equipment.
