The Lake County Division of Transportation is committed to providing safe, efficient, and well-maintained county highways and bikeways to improve the general welfare of travelers in our communities and foster the orderly economic development of the county.

Responsibilities

• The construction, engineering, planning and maintenance of county highways in accordance with the Illinois Highway Code for the use of the traveling public.
  
• The maintenance of the county vehicle fleet for the user departments.
  
• The coordination of township road districts by the office of the County Engineer for the township highway commissioners.
  
• The coordination of local federal transportation aid and reviews of public transportation in Lake County for agencies and the traveling public.
  
• The review of proposed roads as part of the County Subdivision Ordinance for the township highway commission and new residents.
  
• The implementation of other functions by state statute and the county board for the residents of Lake County.