Minnesota Department of Transportation

511 Travel Info

I-94/Hwy 75 interchange reconstruction

Moorhead

Orange barrels on a highway

Background

The Minnesota Department of Transportation is currently considering three options for the interchange design at I-94 and Hwy 75. All three options would include an auxiliary lane in each direction between Hwy 75 and 20th Street.

Layout 1 - Diverging Diamond

Diverging Diamond option

Click for a larger view (3.5 MB JPG)

Pros

  • Lowest construction costs
  • Removes right angle (left turn) conflicts
  • Simplifies signal phasing
  • Lower cost may allow for additional corridor improvements

Cons

  • Need for adjustment in maintenance (snow removal)
  • New concept for drivers
  • Concentrates westbound traffic to one ramp

Project 2035 simulations (double-speed)

Additional Diverging Diamond Interchange links

Layout 2 - Partial Cloverleaf - Northeast Loop

NE Loop option

Click for a larger view (3 MB JPG)

Pros

  • Separates westbound traffic between two ramps

Cons

  • Create new merge point on I-94
  • Includes right angle (left turn) conflicts
  • Additional cost of loop

Project 2035 simulations (double-speed)

 

Layout 3 - Partial Cloverleaf - Northeast/Southwest Loops

Parclo option

Click for a larger view (3 MB JPG)

Pros

  • Separates westbound traffic between two ramps
  • Separates eastbound traffic between two ramps

Cons

  • Creates new merge points on I-94
  • Includes right angle (left turn) conflicts
  • Additional cost of loops

Project 2035 simulations (double-speed)