The interchanges at Interstate 39/90 and Interstate 43/Highway 81 will undergo a temporary reconfiguration Wednesday as crews prepare to change the ramps as part of the larger I-39/90 expansion project.
By Wednesday evening, the DOT plans to shut down the existing loop ramps at the interchange during most of the reconstruction. By fall 2021, the loop ramps will be removed.
Starting Wednesday, people using the interchange must use exit 185 to access I-43 or Highway 81. The ramps at the exit will use a modified diamond setup with traffic controls.
Motorists heading west into Beloit on I-43 should watch for possible traffic slowdowns as they approach Beloit.
