I39 ramps/Highway 34 Closure Information: Here is information from the WI DOT website on the upcoming closure of Hwy 34 between County DB and the I39 ramps: WIS 34 Interchange Southbound exit ramp, southbound entrance ramp, and WIS 34 from County DB to the NB ramps will be closed starting Tuesday May 27 to Thursday July 3. Traffic should follow the posted detour.