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Online Meeting: Construction on the Route 45 Corridor

What is the Construction Time Line for Widening Route 45?


Construction will be conducted in four phases. Contractors will maintain one open lane of traffic at all times along Route 45 during construction. However, some side roads may need to be closed temporarily to rebuild them. Detoured routes will be in place during any such closes.

Although one lane of traffic will be maintained in each direction, motorists should expect delays while driving through the area once construction begins.

  • Phase 1 (May thru Fall, 2010) — Temporary pavement construction on westbound lane of Route 45. This work includes grading, temporary asphalt pavement, culvert extensions, demolition work, temporary signals, etc.
  • Phase 2 (Fall 2010 to Summer 2011) — Construct new eastbound lanes of Route 45. The work includes grading, concrete pavement , storm drainage, curb & gutter, lighting, share use path, etc.
  • Phase 3 (Summer 2011 thru Summer 2012) — Includes construction of the new westbound lanes of Route 45. The work includes grading, concrete pavement , storm drainage, curb & gutter, MSE Walls, median, etc.

In November 2004, Missouri voters passed Amendment 3, which funded a portion of the approximately $20 million to widen Route 45 between Route K and Route 9. The remaining funds are from other sources.

Click the next button to learn about the additional projects on Route 45 that motorist will see this summer.

Have more questions about this project? Add your name to the Route 45 project update e-mail list and receive regular progress reports.

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The relocated Route K is part of the roundabout project along Route 45.


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