Contractor: Emery Sapp and Sons Inc.

Owner: Missouri DOT

Engineer: Bartlett & West

The project at I-470 and Strother Road in Lee’s Summit, Mo., involved the installation of a new diamond underpass interchange with new auxiliary lanes in a previously existing, four lane divided highway.

The new interchange and additional driving lanes serve two functions. First, they relieve traffic congestion. The new lanes provide motorists a convenient way to enter and exit the Interstate (as well as access to nearby Interstate-70 and Interstate-435) without having to find alternate routes. Also, Lee’s Summit Municipal Airport, located just a mile west of the new interchange, gains a new and more direct route to the Interstate system, making non-commercial air travel to the area more convenient. The second benefit of this project is the addition of new east-west municipal roadway that will open up the development of future commercial properties and the connection of city streets that will ease the local traffic flow on the Interstate.