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Project Information

UPDATE: On Sept. 14, crews opened the Route 50 and Blackwell Interchange and portions of the outer roads. See complete details here: http://bit.ly/2wsOVvu

This project is scheduled to complete in late fall 2017.

MoDOT and the City of Lee’s Summit propose to improve access to Route 50 by building a new diamond interchange at Blackwell Road, extend outer roads and redirect access from local roads to the two nearest interchanges.

Why is MoDOT doing this project?

MoDOT launched the Route 50 Corridor Study in summer 2000 to address transportation improvements along the 10-mile stretch of highway between I-470 and Route 7. The study produced five top criteria:

  • increase safety
  • minimize congestion, minimize travel time
  • improve access to Route 50
  • improve regional access.

As a result of these findings, the task force of city, county and economic development leaders recommended two-way outer roads throughout the length of the highway, an interchange at Blackwell Road and minimizing the amount of right-of-way acquisition.


customer survey


Click here to review
the project brochure

road notes


Click here to review improvements


Click here to review a typical
roadway section

typical section

What do the improvements include?

Improvements at Blackwell Road include:

  • A new interchange
  • extending Blackwell Road south to Oldham Parkway
  • extending Blue Parkway (the north outer road) east to Route 7
  • extending Oldham Parkway (the south outer road) to Route 7

Improvements at Route 7 include:

  • New traffic signals and turn lanes at the ramps to and from Route 50
  • several new and improved turn lanes at the north and south outer road intersections

The proposed changes will close direct access to Route 50 at Smart Road, Milton Thompson Road, East Old Lone Jack Lee’s Summit Road, Cemetery Entrance and Harris Road. Access will be redirected from those routes to Blackwell Road and Route 7 by way of new outer roads. The change will eliminate several of the most dangerous high-speed intersections along the increasingly busy Route 50 corridor.

How much will this project cost?

This project is currently under construction. Project cost is $21.2 million, mostly funded by the city of Lee’s Summit, with MoDOT committing $10 million for its portion of the interchange and $5.6 million to construct the outer roads.

For more information on this project, contact MoDOT Area Engineer Matt Killion at 816-622-0500 or by e-mail at Matthew.Killion@modot.mo.gov.

For updates follow us on Twitter and Facebook. Or add your name to the project update e-mail list. Questions or comments? Call us 1-888-ASK-MODOT (275-6636) or submit a comment form online.

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