The Jackson County Department of Transportation's primary garage maintains state roads and highways, in cooperation with the Michigan Department of Transportation
(MDOT). Services include patching, restructuring and repairing roads, trimming trees, scraping gravel roads, and removing snow and ice.  Crews also install culverts and driveways.

The Elm Road garage also houses a sign shop and a supply shop. Crews for the State Roadways, and several members of the Henrietta Garage crew are based out of this location.

Unique to the Elm Road facility is its own spray system, which includes a 7,000 gallon emulsion tank. This facility also boasts  salt domes and a plow for every vehicle.