Address
1400 N. 27th Road
P.O. Box 128
Ottawa, IL 61350

Phone:
(815) 434-0743

Fax:
(815) 434-0747

Email:
[email protected]

Business Hours:
Monday through Friday, 7:00 am to 3:30 pm

Emergency Number, LaSalle County Sheriff:
(815) 433-2161

LaSalle County Contact Form

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LaSalle County Highway Department
Office Location

Links

IDOT
Township Officials of Illinois
Illinois Association of County Engineers
LaSalle County Main Page