Minnesota Department of Transportation

511 Travel Info

I-90/Hwy 52 interchange reconstruction

Olmsted County

About this project

Update

MnDOT plans to make changes to the I-90/Hwy 52 interchange to improve safety and reduce delays.

The main goals of the project are:

  • Decrease crashes, especially t-bone crashes which are more deadly
    • At this interchange, these crashes happen when a vehicle is making a left-hand turn
  • Reduce run-off-the-road crashes at ramps
    • These happen most often at westbound I-90 to northbound Hwy 52
  • Eliminate the line of vehicles waiting to turn from southbound Hwy 52 to eastbound I-90
  • Replace the I-90 bridges over Hwy 52

Proposed changes

The project team has considered many options and is proposing the below changes to the intersection.

Proposed changes at interchange
Proposed changes at I-90 and Hwy 52 interchange

A new feature, a flyover ramp, for southbound Hwy 52 to eastbound I-90, will solve several problems:

New ramps will reduce the run-off-the-road crashes:

  • Changing the angles will allow for better, more controlled entrance/exit
  • Lengthened accelerations lanes will also improve conditions

The bridge replacements will allow for:

  • Relocation of the bridge piers that block the view of on-coming traffic
  • Improved bridges that will last another 60 years or more

Comments and feedback

The project team has considered many options and has chosen an alternative one that will achieve the project goals. Feedback is welcome and encouraged. A comment form is available on the comments tab. The project manager is also available for questions.

Summary of work

I-90/Hwy 52 interchange project map
I-90/Hwy 52 interchange project map

The following is the planned work for the construction that will occur in 2024 and 2025 at the I-90/Hwy 52 interchange, southeast of Rochester.

  • Replace I-90 bridges over Hwy 52
  • Construct new fly-over ramp for southbound Hwy 52 to eastbound I-90
  • Reconstruct all ramps and loops
  • Replace large culverts under interchange ramps

Traffic impacts

No current traffic impacts. Future impacts include:

  • Single lane traffic on I-90
  • Ramp detours for certain interchange ramps while the new ones are constructed
  • Temporary lane closures and traffic shifts on northbound and southbound Hwy 52