The Grundy County Highway Department is responsible for the construction and maintenance of all the bridges and roads in the Grundy County Highway System.  In addition to constructing and maintaining the 139 miles of roads and 40 bridges on the County Highway System, the department assists the 17 townships of Grundy County in the construction and maintenance of their 512 miles of highways and 153 bridges.

  • County Population 51,032 (2010 Census)
  • Land Area 426 square miles
  • Assessed Valuation $1,887,216,330 (2010 Tax Data)
The Grundy County Highway Department is kept busy throughout the year maintaining the roadways.

Effective January 1, 2022
Grundy County now uses Oxcart for Overweight/Oversize Permits.

Click Here For Information

Spring Weight postings in progress, click here for information

To learn more about our Grundy County Transportation network, click on the button below to be directed to more information.
        Grundy Moves

The yearly maintenance includes:Summer Maintenance:

  • Crack filling
  • Hot Mix Patching
  • Bridge Deck Cleaning
  • Shoulder Repairs
  • Culvert Replacements
  • Drainage Improvements
  • Brush and Tree Trimming
  • Litter Pick-up
Winter Maintenance:

  • Snow and Ice Removal
  • Brush and Tree Trimming
  • Culvert Repairs
  • Shoulder Repairs
Any concerns or compliments about roads or bridges should be addressed to the appropriate agency. If on a Grundy County highway, forward the concern to the Grundy County Highway Department. If on a township highway, forward the concern to the appropriate road commissioner.