Cass Street bridge over the Des Plaines River in Joliet temporary closure March 26

IDOT construction

The Illinois Department of Transportation announced today that repairs to a power switch at the Cass Street (U.S. 30) bridge over the Des Plaines River, in Joliet, will require a full closure for one day, weather permitting, Tuesday, March 26.

The work is anticipated to be completed by 5 a.m. Wednesday, March 27.

A detour will direct traffic to Scott Street (Illinois 53), Ruby Street (Illinois 53), Broadway Street (Illinois 53), Theodore Street (Illinois 7) and Plainfield Road (U.S. 30).

Motorists can expect delays and should allow extra time for trips through this area. Drivers are urged to pay close attention to flaggers and signs in the work zone, obey the posted speed limits and be on the alert for workers and equipment.

Click here to find details on other construction projects in IDOT’s District 1. Updates on the impacts to traffic are available at


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