Minnesota Department of Transportation

511 Travel Info

Highway 12 Corridor Safety Improvement

Orono, Maple Plain, Independence

Traffic impacts

Hwy 12 safety improvements project location map
Hwy 12 safety improvements project location map.
Click map for larger version

All traffic impacts are tentative and weather dependent.


Information about upcoming traffic impacts will be posted as details become available. Hwy 12 will be closed at the locations of the three projects. A single detour will bring traffic around the projects. Local residents will maintain access to Hwy 12 where needed. Hwy 12 will be closed to through traffic, a detour will be provided.

About this project

In 2021 and 2022, MnDOT, in conjunction with Hennepin County, will construct three projects aimed at improving safety and reducing crashes along Hwy 12.

On Hwy 12 from Co. Rd. 6 to Baker Park Rd. in Maple Plain, MnDOT reconstructed Hwy 12 to install a center concrete barrier. This will eliminate head-on crashes within this section of Hwy 12. MnDOT completed this project in September 2021.

At Hwy 12 and Co. Rd. 90 in Independence, MnDOT built a roundabout. The improvements include:

  • A reconfigured Co. Rd. 90 to better connect the lanes north and south of Hwy 12
  • Access for walkers and bicyclists crossing Hwy 12
  • Drainage ponds to protect the environment
  • Improved sightlines for motorists entering Hwy 12
  • 15-foot-wide raised concrete median
  • Wider road
  • Westbound roundabout designed to accommodate expansion

At Hwy 12 and Co. Rd. 92 in Independence, Hennepin County will lead a project in partnership with MnDOT to address the safety issues seen at this location. The project will realign Co. Rd. 92 with a bridge over Hwy 12 and the railroad tracks and construct a roundabout on Hwy 12 for traffic entering and exiting Hwy 12 from Co. Rd 92. Hennepin County will construct this project starting in 2021 and continuing into 2022.

Summary of work

  • Center concrete barrier on Hwy 12 between Co. Rd. 6 and Baker Park Rd.
  • Roundabout at Hwy 12 and Co. Rd. 90
  • Roundabout and bridge at Hwy 12 and Co. Rd. 92
  • Reduced crashes and improved safety within corridor