Illinois Department of TransportationDriving conditions can change very quickly depending on weather, roadway, and traffic challenges, and can cause inconvenience and safety hazards for motorists. With mobility, convenience, and safety in mind, IDOT makes it a priority to consistently update our motorists on planned lane changes or closures due to road construction projects and other planned and unplanned events.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/2f2b8e7babb64a3f8280b6d43d8ad824_0engIllinois DOT Open Data PortalPublicRoad Closure Extents [Illinois]Web servicesIllinoisLast Modified: 2026-01-08