high-level alert: Microsoft Outlook Email Outage
County employees can now be reached by email, but intermittent delays continue due to the international Microsoft Outlook outage. We appreciate your patience as the issue gets resolved.
Transportation and Highways System Maps
Phone Number
Service Information
The following map is provided in PDF format and can be printed in 8.5″ x 11″ format using Adobe Acrobat Reader “shrink to fit” feature. The “zoom” feature can be used in Reader to look more closely of any area on these maps.
To view and create additional maps of the County highway system, visit the interactive Cook County Highway Jurisdiction Mapping Application created by Cook County Geographic Information Systems or the hub for maps, apps and spatial data, at Cook Central.
Location Title
George W. Dunne, Cook County Office Building
Location Address
Location Email
Location Phone
Location Fax
Location Hours
Sunday: Closed
Monday: 8:30 am-4:30 am
Tuesday: 8:30 am-4:30 pm
Wednesday: 8:30 am-4:30 pm
Thursday: 8:30 am-4:30 pm
Friday: 8:30 am-4:30 am
Saturday: Closed