The Harrison Street Viaduct Reconstruction restored a critical east-west connection in downtown Chicago, linking the South Loop and West Loop neighborhoods. Spanning 780 feet over 18 active Amtrak and Metra tracks near Union Station, the viaduct serves vehicles, freight traffic, pedestrians and cyclists. Originally built in 1932, the bridge required full replacement to meet modern safety and accessibility standards. STV provided construction engineering and inspection services, ensuring minimal disruption to rail operations, commuters and surrounding businesses while helping to deliver a durable, multimodal solution.
What challenges did STV address?
STV managed a $20 million reconstruction in a busy urban corridor, coordinating with stakeholders like Amtrak, Metra, Union Station, the U.S. Postal Service and nearby businesses, while maintaining access, safety and ongoing rail operations. The leveraged night and weekend work windows to minimize disruptions.
What solutions did STV deliver?
STV oversaw the complete removal and replacement of the bridge, including a reinforced concrete deck on steel beams and piers anchored to the existing foundation. The team also delivered full roadway resurfacing, ADA-compliant sidewalks and protected bike lanes, all while keeping operations running smoothly.
How does the Harrison Street Viaduct Reconstruction benefit the community?
Upon reopening, the viaduct restored critical connectivity, enhanced traffic flow and improved safety and accessibility in one of Chicago’s busiest downtown corridors.
Key Stats and Accolades
- 780-foot bridge replacement; roadway resurfacing; ADA-compliant sidewalks; protected bike lanes
- Restores vital east-west connectivity, supports multimodal traffic and enhances safety and accessibility
