US 51 (W State Street to WSOR Bridge)

Janesville, Rock County

Schedule

Construction begins: July 13, 2026

Anticipated completion: late September 2026

 

Traffic impacts

Traffic on US 51 will be maintained in stages:

  • Stage 1: One lane of traffic in each direction will be maintained on the outside lanes while work occurs on the inside lanes.
  • Stage 2: Traffic will then shift to the inside lanes while work is completed on the outside lanes.

Additional impacts include:

  • No left turns from Delavan Drive during construction
  • Short-term closures and flagging operations at times
  • Access to local properties will be maintained whenever possible
  • Temporary interruptions to driveways or sidewalks may occur during active work; advance notice will be provided when access is affected

 

Weekly update

Current Construction Operations:

  • Preparation for traffic shift

Upcoming Construction Operations:

  • Crews will work on a storm structure manhole repair in the NB pavement.
  • Crews will be removing some curb and sidewalk on the NB side.
  • After removals, crews will form and pour in new curb and sidewalk.

Traffic Updates:

  • USH 51 Traffic –
    • New Traffic Pattern: The NB Lane will be shifted into the SB side to Bi-Directional traffic to allow work to occur in the NB lanes.
    • One lane in each direction will remain open on Center Ave.
    • The intersection of Center Avenue and Delavan Drive will become a 3-way stop. All movements will be allowed through the intersection except to and from the west leg of W. Delavan Dr.
  • Delavan Drive –
    • The west leg of the intersection will close to all traffic.