Some roads in Buffalo Grove are owned and maintained by Cook County (CCDOTH), Lake County (LCDOT), or the State of Illinois (IDOT):
The following roads are outside the jurisdiction of the Village of Buffalo Grove and therefore are owned and maintained by the County they are located in, or the State, which hinders the authority of the Village regarding improvements and/or regulating access during construction, as well as signage. Any and all questions, problems, or concerns should be directed towards the appropriate agency.
Cook County Department of Transportation and Highways Jurisdiction (CCDOTH):
- Arlington Heights Road (South of Lake Cook Road)
- Buffalo Grove Road (South of Lake Cook Road)
- Lake Cook Road
Lake County Department of Transportation (LCDOT) Jurisdiction:
- Arlington Heights Road (North of Lake Cook Road)
- Buffalo Grove Road (North of Lake Cook Road)
- Deerfield Parkway
- Aptakisic Road
Illinois Department of Transportation (IDOT) Jurisdiction:
- Dundee Road (Rt. 68)
- Half Day Road (Rt. 22)
- McHenry Road (Rt. 83)
- Milwaukee Avenue (Rt. 45/Rt. 21)
- Old Arlington Heights Road (maintained by Arlington Heights)
Do you have questions related to specific construction projects?Click on the logo below to be informed about the project as well as the opportunity to sign up for project updates.
Lake Cook Road
If you don't know which agency maintains a given road, visit the Jurisdictional Boundaries map in our Community Portal. You can enter your address, or a nearby location, to discover which agency owns and maintains the road.