The Ruby Street bridge in downtown Joliet was shut down during the morning rush hours on Tuesday morning.

The drawbridge was operating again at about 8:15 a.m., said Maria Castaneda, spokeswoman for the Illinois Department of Transportation.

The bridge was closed at about 3:30 a.m. after a sensor became soiled with grease and debris, Castaneda said. A repair crew “cleared the sensor and checked the bridge” before putting it back in operation, she said.

The bridge is one of five downtown drawbridges that carry traffic over the Des Plaines River. One of those bridges at Cass Street is shut down for repairs and is not expected to reopen until late 2027.