The state has announced additional Interstate 55 lane reductions starting Monday at the Grant Creek and Des Plaines River bridges.
Southbound I-55 will be reduced to one lane at the bridge over Grant Creek and the BNSF Railroad, where northbound lanes already had been down to one lane to accommodate bridge work, the Illinois Department of Transportation has announced.
Also on Monday, southbound lanes at the Des Plaines River bridge will be reduced to one lane during daytime hours only for the start of a two-week bridge inspection. Northbound lanes will be reduced in the second week.
The Grant Creek bridge is located south of Arsenal Road.
Lane reductions at that bridge will stay in place until late November and resume again in the spring, IDOT said in a news release. In the spring, all traffic will be moved to the southbound lanes to accommodate one lane in each direction. The entire project is expected to be completed in fall 2020.
The speed limit in the work zone has been reduced to 45 mph. Rumble strips have been installed to alert motorists to the work zone. And, state police have dedicated special patrols to the area to enforce traffic laws and enhance safety, IDOT said. IDOT recommends Interstate 80 and Route 47 as alternative routes during the lane reductions. Digital message boards will be in place to display real-time traffic information.
The plan for the Des Plaines River bridge is to reduce southbound traffic approaching the river to one lane from 6 a.m. to 2 p.m. Monday through Thursday. Then from Aug 12 to 15, northbound traffic approaching the river will be reduced to one lane between 8 a.m. and 3 p.m.