I-435 and State Avenue Interchange

Kansas DOT

Project Summary

To determine the most appropriate interchange type for this growing area, the Kansas Department of Transportation committed funds for preliminary engineering to advance interchange improvement concepts at I-435 and State Avenue. Initially, a concept study was completed by another consultant but TranSystems is under contract with the Unified Government to convert an adjacent intersection into an interchange.  The improvement projects overlap along State Avenue. TranSystems goal for the project is to confirm that the Diverging Diamond Interchange (DDI) is the most appropriate interchange type or, if it isn’t, identify the most appropriate interchange type and make sure the project is ready to move on to preliminary design for the future.

Project Highlights

  • Determine interchange type for growing area
  • DDI concept evaluation
  • Prepare project for future preliminary design

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