St. Croix Crossing aerial view

St. Croix Crossing

Connecting Oak Park Heights, Minn. and St. Joseph, Wis.

St Croix Crossing logo

Weigh-in-motion system construction begins

July 15, 2015

STILLWATER, Minn. – Construction of a weigh-in-motion system as part of the St. Croix Crossing project began on July 14 and will continue through mid-August.

Motorists should expect intermittent temporary lane and shoulder closures on westbound Highway 36, west of Osgood Avenue, as crews install weigh-in-motion loops under the road surface and a guard rail on the road shoulder. Lane and shoulder closures will not be in place until after 9 a.m. on weekdays to minimize traffic impacts. The construction contractor—Hardrives, Inc.—does not anticipate working on weekends.

In addition, the exit ramp from westbound Highway 36 to Highway 5 is now temporarily narrowed to allow construction crews to widen the ramp. Ramp widening provides law enforcement with a safe place to properly weigh commercial vehicles that trigger the weigh-in-motion loops on Highway 36.

St. Croix Crossing bridge construction highlights

St. Croix Crossing bridge construction updates include:

  • Construction crews are placing rebar for the second of three sections of the Pier 10 crossbeam.
  • Crews completed the first concrete pour for the Pier 11 crossbeam on July 13. After the concrete cures, they will stress the steel bars and strands inside the structure. Read more about the post-tensioning process. Crews anticipate beginning to place rebar for the second crossbeam section next week.
  • Crews continue to install sheeting on the Wisconsin bluff for Pier 13 foundation construction.
  • Crews anticipate pouring concrete next week for the top portion of the cast-in-place Minnesota approach ramp section that will carry Highway 36 traffic to and from the new river bridge.
  • One half of the Highway 95 eastbound Minnesota approach ramp is complete and crews have begun removing the falsework that supported its construction. This activity will continue through mid-August.
  • Crews are installing segments from the west bridge abutment out to the completed Pier 1E span on Minnesota land. They anticipate connecting the two structures later this week. This process is called a closure pour. Crews fill in the gap between the two spans with reinforcement bar and concrete to make them a singular structure.

Minnesota welcome monument construction

Construction crews installed the Minnesota welcome monument on July 8. The sign is located on Highway 36 east of Osgood Avenue and south of the Washington County Government Center. The project is anticipated to be complete in August. Remaining construction activities include finishing touches to establish the monument and final grading.

Wisconsin highway construction update

This week, construction crews are:

  • Continuing to grade the north end of the project for the new WIS 35/64
  • Placing rock in the medians
  • Pouring concrete curb and gutter
  • Installing electrical items underground around the WIS 35/Main Street roundabout
  • Installing signs
  • Paving the WIS 35/Main Street roundabout

Minnesota approach road work will be complete in summer 2015 and the new St. Croix Crossing bridge will open to traffic in fall 2016. When all work is finished, motorists will have smoother highway pavement surfaces, improved flow at intersections, an improved frontage road system—including safer access—and a new river crossing between Minnesota and Wisconsin. All of this will occur while maintaining or restoring the area’s cultural, historic and environmental resources.

Stay connected, ask questions or provide comments to the St. Croix Crossing project team: