Minnesota Department of Transportation

511 Travel Info

Highway 243 Osceola Bridge

Franconia Township MN and Osceola WI

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If you missed the March 3 virtual public meeting, a recording of the event and survey are now available on the meetings webpage.

About this project

Highway 243 Bridge over the Saint Croix National and Scenic Riverway between Highway 95 in Franconia Township and Highway 35 intersection in Osceola, Wisconsin project location map
Hwy 243 project location map.
Click map for larger version.

We are in process of designing the reconstruction of the Hwy 243/Osceola Bridge over the St. Croix National and Scenic Riverway, in partnership with the Wisconsin Department of Transportation (WisDOT). The Osceola Bridge was built in 1953.

The bridge is reaching the end of its service life due to its age. However, the current condition of the bridge is safe for general travel. MnDOT inspects the bridge annually and evaluates the bridge deck, trusses, supports and other overall factors to evaluate the condition of the bridge and identify needed repairs. The last inspection took place in April of 2021 and no new areas of concern were identified. Commercial trucks over certain weights are restricted from using the bridge.

The Hwy 243 bridge will be replaced. MnDOT and WisDOT completed an evaluation of the existing piers and footings (to request a copy of this document, contact us) and decided that it is not feasible to reuse any portion of the existing structure. Additional needs for the project include accommodations for people walking and biking, and drainage improvements. The project team will consider bridge alternatives that include bike and pedestrian accommodations. The sensitive environmental constraints on both the Minnesota and Wisconsin road approaches will also be taken into consideration as these changes are evaluated. Additional information can be found in the project’s Purpose and Need document.

Initial options/concepts, have been identified by the project team. These options will be presented to the public to provide comments and ask questions. There are a variety of opportunities for the public to provide comment and feedback during the project development process. Public open houses will be held as more detail on project alternatives is available. In addition, the public can contact or submit comments and questions to the project team online.

Summary of work

The purpose of this project is to maintain a reliable highway connection over the St. Croix River for Hwy 243 between Washington/Chisago counties in Minnesota and the Village of Osceola and Polk County in Wisconsin. The project team will work with federal, state and local interests to minimizing project impacts to the St Croix River and other natural resources in the area.

Project needs

The “need” identifies the transportation problems to be addressed by the project outcomes.

  • Bridge conditions
  • Evaluate pedestrian bridge crossing by foot and by bicycle
  • Drainage conditions

Additional considerations

  • Bridge traffic during construction
  • River navigation and access during construction
  • Osceola Landing Access
  • Hwy 243 Wayside Rest (MN)
  • Hwy 243 Emergency Pull-off (WI)

Traffic impacts

All traffic impacts are tentative and weather dependent.


Information about upcoming traffic impacts will be provided as details become available. Motorists may expect lane, road and bridge closures throughout construction. There will be a period in which the bridge will need to be closed. The duration of that closure is one of the many items that will be considered during the alternative evaluation.

The project team will evaluate river access and any construction impacts that might occur. The team recognizes that access to the river and the Osceola Landing are important to residents and visitors by both road and the river. Keeping access open as much as possible is important.