The McLean County Highway Department maintains 366 miles of County highway, second only to Cook County in Illinois. The County is also the largest in Illinois at 1,186 square miles, which is larger than the State of Rhode Island. In addition to the County roads, the County Highway Department helps the 30 area Townships with their 1,539 miles of roadway.

Additional Responsibilities

Besides these roads, McLean County has 89 bridges and the Townships have 247 bridges over 20 feet in length that the department inspects biannually. The department supervises the design and replacement of 3–6 bridges each year. We also design and construct joint township and village culvert projects.

The department also provides engineering services and administers the 30 Townships’ Motor Fuel Tax and Township Bridge Program funds.


When trying to find the McLean County Highway Department’s location, 102 S Towanda Barnes Rd, Bloomington, IL 61705, please use Google Maps or Bing Maps, as they have our location correct. Other GPS and / or mapping systems, may either take you to Towanda Ave or south of US Route 150.