Joliet Police Department closing Jefferson Street east of Raynor to the Des Plaines River Bridge due to icy conditions. The huge hill makes it a hazard for motorists. Salt trucks have been dispatched. Meanwhile, 20 to 30 crashes reported throughout Will County along I-55 and I-80. All lanes are shut down on eastbound I-80 between I-55 and Houbolt Road due to an early morning crash. On I-55 between Jefferson and I-80, dozens of semi trucks have moved off to the right shoulder to avoid driving on the slick roads. Illinois State Police says IDOT is out with salt trucks but even some salt trucks are now stuck in traffic.