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Division of Transportation
 600 W. Winchester Rd
 Libertyville, IL 60048
 
 Administration
 Phone: 847.377.7400
 Fax: 847.984.5888
 Hours: 8am - 4:30pm
 dot@lakecountyil.gov
 
 Maintenance
 Phone: 847.377.7498
 Hours: 6:30am - 3pm
 dot@lakecountyil.gov
 
 Lake County PASSAGE
 Phone: 847.377.7000
 Hours: 6am - 7pm
 passage@lakecountyil.gov
 ​
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