U.S. 51 in Janesville to Close Through November 24
Wisconsin transportation officials are closing a stretch of U.S. Highway 51 in Janesville for bridge repairs, with a detour in place.
Updated on Nov. 2, 2026 in Transportation
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The Wisconsin Department of Transportation will close U.S. Highway 51 between Delavan Drive and State Street in Janesville starting Friday, with the closure scheduled to run through November 24. Crews are completing bridge deck repairs, a bridge overlay, roadway milling and final asphalt paving.
Why it matters
Additional repairs to the U.S. 51 bridge over the Union Pacific Railroad were identified early in the project, and the full closure was needed so crews can work safely. Drivers in Janesville will need to rely on the posted detour for the duration of the work.
The closure is scheduled to last from Friday through November 24, 2026, covering roughly three weeks of bridge deck repairs, overlay, milling and paving on the U.S. 51 segment between Delavan Drive and State Street. The stub does not specify the project's total cost or contractor value, and it is unclear whether the November 24 date could shift.
The players
Wisconsin Department of Transportation
The state agency responsible for planning, building and maintaining Wisconsin's state highway system, including U.S. 51 in Janesville.
The details
Traffic will be directed along Delavan Drive, Beloit Avenue and Wisconsin State Highway 11 as a detour. Residents south of the project area will retain access, with temporary traffic controls directing them through designated entry points.
Timeline
Friday (week of November 2, 2026): closure of U.S. 51 between Delavan Drive and State Street begins.
November 24, 2026: scheduled end of the closure.
Transportation Context
The project is a routine bridge rehabilitation under the Wisconsin Department of Transportation's state highway maintenance work, with the U.S. 51 bridge over the Union Pacific Railroad requiring added repairs identified early in construction.
Drivers heading through Janesville should plan for the Delavan Drive, Beloit Avenue and Wisconsin State Highway 11 detour from Friday until November 24. Residents south of the work zone will still have access through designated entry points.
The takeaway
Drivers in Janesville should expect delays on the detour route until the scheduled November 24 reopening. Checking traffic updates before leaving can help avoid the closed segment.
What happens next
The closure is scheduled to end November 24, 2026, when U.S. 51 between Delavan Drive and State Street is expected to reopen.
Further reading
For more on regional road and rail infrastructure, see Transportation coverage.
Source note: This article includes information reported by Channel 3000.
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