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Springfield Interchange Design Unveiled

Springfield, MO— Missouri Department of Transportation (MoDOT) officials recently displayed a plan for rebuilding the Interstate 44/Route 13 interchange in Springfield. The design, called a Diverging Diamond Interchange, will be the first of its type built in the United States. Transportation departments in other states are planning similar projects, and MoDOT is considering employing the...

August 11, 2008

Springfield, MO— Missouri Department of Transportation (MoDOT) officials recently displayed a plan for rebuilding the Interstate 44/Route 13 interchange in Springfield. The design, called a Diverging Diamond Interchange, will be the first of its type built in the United States.

Transportation departments in other states are planning similar projects, and MoDOT is considering employing the design elsewhere in Springfield, in cooperation with the city of Springfield, and other locations in the state. The design is in use in Europe.

The I-44/Route 13 (Kansas Expressway) project is aimed at reducing congestion and improving safety at the interchange. With a Diverging Diamond Interchange design, the opposing lanes of Route 13 will criss-cross at traffic signals at the ends of the bridge over I-44. Crossing the bridge, oncoming traffic will be on the right, separated by concrete barriers and screening. This will give left-turning vehicles on Route 13 a "free left" to the I-44 on-ramp. At the same time, traffic continuing north or south on Route 13 will be able to travel more steadily through the interchange.

Work on the project is scheduled to begin in early 2009, with completion in mid- to late 2009.

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