Orange barrels on a highway
News Release
June 26, 2012


Mary McFarland Brooks
Minnesota Department of Transportation
395 John Ireland Blvd.
Saint Paul, MN 55155
Tel 651-366‐4280
Cell 651-200-5453


Christine Ouellette
Wisconsin Department of Transportation
Northwest Region
718 W. Clairemont Ave.
Eau Claire, WI 54701
Tel 715‐833‐9814
Cell 715‐828‐9417




Minnesota Department of Transportation
Office of Communications
395 John Ireland Blvd.
Mail Stop 150
St. Paul, MN 55155-1899


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HDR to design St. Croix Crossing Bridge

ST. PAUL, Minn. – The Minnesota and Wisconsin departments of transportation have selected the architectural and engineering firm HDR, with teaming partner Buckland & Taylor, to lead the design effort for the St. Croix Crossing Bridge. The bridge, which will span the St. Croix River, will be located between Oak Park Heights, Minn. and St. Joseph, Wis.

The $14.2 million contract will develop the extradosed-type bridge design that was selected by a community stakeholder group. The design is a hybrid of a concrete box girder structure and a cable-stayed structure and is lower in height than a typical cable-stayed bridge. The bridge design minimizes environmental impacts by keeping tower heights below the river bluffs and reducing the number of piers in the river. When completed, the St. Croix Crossing will be the second extradosed bridge in the United States; the first extradosed bridge is currently being constructed in Connecticut.

The four–lane St. Croix Crossing Bridge, estimated to cost between $280 and $310 million, will be constructed using the design-bid-build method. The bridge is a part of the larger St. Croix Crossing project, which includes expressways on either side of the bridge in Minnesota and Wisconsin. The project also includes an extensive trail facility for pedestrians and bicyclists, as well as historic and environmental mitigation efforts. The total cost for the entire St. Croix Crossing project is estimated to cost between $580 and $676 million.

The design work will take approximately one year to complete with construction of the bridge anticipated to begin in fall 2013. 

For more information on the St. Croix Crossing project, visit or the St. Croix Crossing Facebook page at









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