South section

• 5.4 miles of proposed four-lane bypass from Terrytown Rd. south to Ski Hi Rd. around the city of Baraboo.
• Interchanges scheduled to be constructed at WIS 136 and County W.
• South of Baraboo, freeway will change to an expressway with limited access to some businesses/homes and full access to the Lehman Rd. and Ski Hi Rd. intersections.

Bike/pedestrian accommodation

• Starts at the US 12 bypass along Fern Dell Rd. and ends at Frontage Rd. West (near the intersection of Wisconsin Dells Pkwy South and N. Gasser Rd.) in the village of Lake Delton.
• Located adjacent to north section of the US 12 bypass.
• Will connect to north section bypass project just west of the Giebel Ct./Moon Rd./Fern Dell Rd. roundabout.

North section – Construction completed

• 5.7 miles of a four-lane bypass – I-90/94 (just north of Fern Dell Rd.) south to Terrytown Rd.
• Interchanges constructed near Fern Dell Rd., at North Reedsburg Rd. and at WIS 33.
• New US 12 passes over Fern Dell Rd., North Reedsburg Rd. and Terrytown Rd. and passes under Shady Ln., WIS 33 and Old WIS 33.