Avoid the I-39 Bridge near Rockford, Illinois

The Illinois Department of Transportation has placed a 20-ton load limit and lane restrictions on the northbound side of the Interstate 39 bridge crossing the Kishwaukee River, south of Rockford. These restrictions will remain in effect until recently identified structural issues are repaired.

Trimble is in the process of updating its map data to include the new weight restriction and generate truck routes that avoid the affected bridge.

In the meantime, customers driving in this area can:

  • Create a closure in ContentTools for the northbound side of the bridge.

  • The closure will be applied to all routes in applications linked to your ContentTools account.

rockford bridge

ContentTools displays the closure as a red line on the map.

Recommended detour

According to the Illinois DOT, vehicles over 20 tons must exit at the Illinois 72 interchange (exit 111) and follow the detour: westbound Illinois 72, northbound Illinois 251, and eastbound Bypass U.S. 20 to return to northbound I-39.