Halsted Street Bridge

Hillsdale Fabricators fabricated, preassembled and shipped a 156-foot-long tied-arch bridge to replace the 103-year-old Halsted Street bascule bridge over the Chicago River North Branch Canal. The new bridge features a 156-foot-long steel tied-arch main span flanked by two 36-foot precast concrete approach spans, expanding the deck by 22 feet to accommodate additional traffic lanes, bike lanes and pedestrian sidewalks.

After fabricating the structural steel for the arch ribs, lateral struts and floor system, Hillsdale Fabricators preassembled the bridge using its own equipment and labor to verify fit-up and fabrication accuracy. The process also allowed precise measurements for the fabrication of the cable system supporting the deck. Large bridge components were then disassembled, shipped by barge and erected on the Chicago River, with Hillsdale Fabricators also providing prefabricated architectural lighting shrouds integrated into the final structure.