New lanes of US 12 expected to open Saturday, Baraboo

Project will be completed this fall

August 11, 2017

New lanes of US 12 are expected to open to traffic at noon on Saturday (Aug. 12) as part of the ongoing Baraboo bypass construction. Motorists are urged to be aware of reduced speeds, lane restrictions and construction activities in the area.

Crossovers with bidirectional traffic (two lanes, one in each directional) are in place at the north and south ends of the work zone. Four lanes of traffic are open through the WIS 136 interchange and the County W interchange. 

US 12 construction between Terrytown Road and Ski Hi Road is ongoing.

Project completion is expected this fall.

More information on the Baraboo bypass construction can be found at

For more information, contact:
Greg Brecka, WisDOT Project Manager
(608) 245-2671,