Traffic will be controlled throughout the project by multiple lane shifts and ramp closures. Keep up to date with current traffic impacts by checking the project website.
Access to the Traveler Information Center, DNR Boat Launch, Fish and Wildlife Service Boat Launch and Lock and Dam will be affected during different stages of the project. Information on access restrictions will be posted here.
The new crossing will consist of two separate bridges parallel and upstream from the existing bridge. They will be concrete box girder structures over the main river channel and precast concrete girders over the back channel.
Details of the new river bridges:
100 year design life
Width: approximately 45 - 66-feet
Two – 12-foot lanes each direction
Eastbound acceleration lane
12-foot outside shoulders
Six-foot inside shoulders
The final interchange configuration will provide full movement with no signals between I-90 and Highway 61 as well as access to the Traveler Information Center and boat launches from all directions. The heavily used westbound I-90 to southbound Highway 61 will feature a fly-under ramp allowing continuous movement with no competing traffic.
Pedestrians and Bicyclists
The final configuration will provide safe access for users on a 10-foot trail through the interchange without a single crossing with highway traffic. A modified trail system and pedestrian bridge connects riders using the Highway 61 shoulders south of the project to the dedicated bicycle and pedestrian path on the north end of the project. In addition, access is improved to the Rest Area/Traveler Information Center for users of the trail.