Minnesota Department of Transportation

511 Travel Info

Highway 22

Mankato to St. Peter

About this project

map of project area

View full-size Hwy 22 project area map

Summary of work

Mankato-St. Peter

  • Reconstruct roadway from south of Blue Earth County Road 57 in Mankato to just south of the Minnesota River Bridge in St. Peter
  • Add new turn lanes and passing lanes throughout the project area
  • Construct a roundabout at Hill St. (Le Sueur County Road 21) in Kasota
  • Design and grade for a future walking and biking trail to connect Mankato and St. Peter
  • Improve lighting at intersections, repair and replace bridges, and install snow fence

Augusta Drive in Mankato

  • Construct a two-lane roundabout at the intersection of Hwy 22/August Drive in Mankato
  • Construct new trail segments north of Augusta Drive and west of Hwy 22
  • Improve ADA accessibility and realign existing trails


  • Reduce crashes at intersections and along Hwy 22
  • Improve traffic flow and reduce delays
  • Improve pavement for a smooth ride
  • Prepare for a potential future walking and biking trail separated from traffic lanes

Key intersection improvements