Major construction work resumes Monday on the Minnesota approach to the new St. Croix River bridge.
The span will connect Oak Park Heights with the town of St. Joseph in Wisconsin.
MnDOT spokeswoman Jessica Wiens said about two miles of Highway 36 in Oak Park Heights will be reduced to a single lane in each direction as workers rebuild the road and nearby streets.
"There are 10 river piers in the river that are sticking up about 15 feet above the water surface. Now crews are working on building up those piers even higher," Wiens said.
The project is a joint effort between MnDOT and the Wisconsin Department of Transportation. It's estimated to cost between $580 and $676 million.
The four-lane crossing is scheduled to open in the fall of 2016 and will replace the aging Stillwater Lift Bridge.