Properly maintained roads are essential to Lake County residents, businesses, schools and emergency service providers. Numerous government agencies construct, maintain and repair roads in Lake County. If you have questions or concerns about a particular roadway, you must contact the appropriate agency. See the guide below for help.
Roadway		Agency	Contact Information
County Highways		Lake County Division of Transportation	Main Office 847.377.7400 www.lakecountyil.gov/transportation Highway Construction Information www.lakegov.info/roadwork Lake County Passage real-time traffic information www.lakecountypassage.com Traffic Radio AM 1620 Use Request a County Service to report potholes, dead animals on roadways, damaged mailboxes from snowplows and downed or missing street signs.
State Highways		Illinois Department of Transportation	217.782.7820 http://www.dot.state.il.us/
Tollway		Illinois Tollway	630.241.6800 http://www.illinoistollway.com
Local Street & Township Roads		Municipality or township in which road is located	List of municipalities List of townships

				County Highway The Lake County Division of Transportation is responsible for planning, designing, constructing and maintaining Lake County highways. These highways are identified by the 5-sided blue and gold route markers. The highway system consists of almost 300 centerline miles of arterial and collector roads and 48 miles of bike paths. A county highway is a road that meets the criteria established by state law, has been designated by the County Board and has been approved by the State. The Division of Transportation is also responsible for more than 130 signalized intersections, 33 bridges and almost 90,000 feet of guardrail. Like state highways, Lake County highways extend through municipalities.   Complete list of all county owned highways	Click to open County Highway and Bikeway Map
				State Highway State highways crisscross the county and make up 349 miles of arterial and collector roads. The Illinois Department of Transportation has authority over roads marked as "Illinois" routes and also roads marked as "US" routes.
				Illinois Tollway I-94 The Illinois Tollway is responsible for the construction, maintenance and operation of tollways in northern Illinois. I-94 or the Tri-State Tollway is an interstate highway and is the only interstate highway in Lake County.
				Local Streets Municipal streets are those streets located within municipal corporate limits that are not State Highways or part of the County Highway System. Most municipal streets provide access to neighborhoods or within subdivisions. Each municipality is responsible for the construction, maintenance and repair of the streets within their municipal limits.
				Township Roads Township roads are those streets and roads located outside of municipalities that are not otherwise designated as state or county highways. A township highway commissioner is an elected official who is responsible for the township streets and roads that are located within the boundaries of a particular township. There are more than 430 miles of township roads and streets in the county.