3110 Old McHenry Road
Long Grove, IL 60047
Phone: 847.634.9440
Fax: 847.634.9408
Office Hours:
Monday- Friday
8am – 4:30pm
IDOT Illinois Dept. of Transportation
2300 S. Dirksen Parkway
Springfield, IL 62764
1-(847) 705-4106
Website: http://idot.illinois.gov/