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:

  • Traffic Control was set up for lane closures of the inside lanes, single lane of traffic is in the outside lanes.
  • Crews removed curb, sidewalk, and pavement repair locations in the median this week.

Upcoming Construction Operations:

  • Crews will work on prepping the curb and sidewalk locations to pour.
  • Crews will pour the concrete curb and sidewalk.

Traffic Updates:

  • USH 51 NB and SB have inside lane closures.  Traffic is in a single lane on the outside right lanes, one lane in each direction.
  • Delavan Drive has restricted left turns.  No Left turn movement from Delavan Drive in both directions, Right Turn Only movement.