US 51

Project location | Project overview | Schedule | Traffic impacts/detours | Status/phase | Contact information

Project location

US 51, Beloit to Janesville, Rock County

View US 51 project in a larger map.


Project overview

The project will resurface 7.6 miles of US 51 between Henry Avenue in Beloit and WIS 11 in Janesville to address deteriorating pavement. Two segments of US 51 will be converted from 4-lanes undivided to 2-lanes with a two-way-left-turn-lane (TWLTL). The two segments are Henry Ave. to Cranston Road and County Q to the railroad overpass bridge. Additional roadside safety work will be done in various locations throughout the project.

View exhibits from the public meeting on October 2, 2018:


  • Construction is scheduled for 2019.

Traffic impacts/detours

US 51 will remain open to traffic with lane closures. No detour route is proposed.



Contact information

Jim Simpson, P.E., P.L.S., WisDOT Project Manager
(608) 246-5628

Michael Bie, WisDOT Southwest Region Communications Manager
(608) 246-7928

Wisconsin Department of Transportation (WisDOT)
Southwest Region, Madison Office
2101 Wright Street
Madison, WI 53704
Phone: (608) 246-3800
Fax: (608) 246-3843
TTY: 711