The Torrence Avenue bridge over the Grand Calumet River on the Far South Side will be fully closed starting Friday after an inspection uncovered a problem with the structure.
During a routine inspection last week, IDOT crews found deterioration of the main truss members, according to a statement from the Illinois Department of Transportation.
Officials initially opted to close one lane in both directions and post a 15-ton weight restriction on the bridge, IDOT said.
However, additional analysis has prompted IDOT to close the bridge entirely and speed up truss repairs, the agency said.
A posted detour will take traffic around the area via Sibley Boulevard, Burnham Avenue, Brainard Avenue and 130th Street, IDOT said. Motorists should be aware that Torrence is also detoured north of 130th Street for an ongoing Chicago Department of Transportation project.
A $13 million project to replace the bridge is included in IDOT’s FY 2016-21 Proposed Highway Improvement Program, the department said.
No truck detours will be posted since Torrence is not a designated truck route, IDOT said. Trucks should instead use the nearby Bishop Ford Expressway or Burnham Avenue. More than 12,700 vehicles use the bridge every day.