Traffic may get a little more congested on I39/90 in Janesville starting this Thursday. Department of Transportation project spokesman Steven Theisen says a cross-over is being set up from the northbound to southbound lanes between the Highway 11 and US 14 interchanges. The cross-over will allow construction crews to begin work on the bridges at Mount Zion, Milwaukee, and Palmer Drive. Two lanes will remain open in both directions. The cross-over will be in effect through the winter.