Minnesota Department of Transportation

511 Travel Info

Hwy 169 - Hwy 22 - Hwy 99 Intersections

St, Peter

Orange barrels on a highway

Design concepts

Below are four design concepts for the intersection corridor of Hwy 169/Hwy 22/Hwy 99. Feedback received from St. Peter city staff, city council, and the community will be taken into consideration as MnDOT finalizes a layout. Please email any comments you'd like to share and specify which concept you prefer.

Concept A - Dual Left Turn Lanes

  • Concept A Layout
    • Cost – Low construction costs
    • Safety – Improved safety at Hwy 169/Hwy 22 due to protected left-turn signal phasing
    • Capacity/Delay – Reduced overall delay and queuing at Hwy 169/Hwy 22
    • Impact – No permanent impacts to adjacent properties

Concept B - Roundabouts

  • Concept B Layout
    • Cost – Medium construction costs
    • Safety – Reduced potential of fatal and serious injury crashes at both intersections, but increased frequency in "property damage only" crashes
    • Capacity/Delay – Northbound Hwy 169 through traffic and westbound Hwy 22 right turn traffic may experience increased delay and queuing during peak periods, but other movements are expected to experience reduced delay and queuing
    • Impact – Limited permanent impacts to adjacent properties

Concept C - Signalized RCUTs

  • Concept C Layout
    • Cost – Low construction costs
    • Safety – Improved safety at both intersections due to reduced conflicts points and improved roadway geometry
    • Capacity/Delay – Reduced overall delay and queuing at Hwy 169/Hwy 22, but longer travel distance for southbound Hwy 169 to southbound Hwy 22, and eastbound Hwy 99 to northbound Hwy 169 turning movements
    • Impact – No permanent impacts to adjacent properties

Concept D - Hybrid: Dual Left Turn with RCUT

  • Concept D Layout
    • Cost – Low construction costs
    • Safety – Improved safety at Hwy 169/Hwy 22 due to protected left turn signal phasing and improved safety at the Hwy 169/Hwy 99 intersection due to reduced conflict points and improved roadway geometry
    • Capacity/Delay – Reduced overall delay and queuing at Hwy 169/Hwy 22, but longer travel distance for eastbound Hwy 99 to northbound Hwy 169 turning movement
    • Impact – No permanent impacts to adjacent properties