Final Environmental Assessment approved for West Kingman traffic interchange project

Approval allows ADOT to proceed with planned improvements

PHOENIX – The Arizona Department of Transportation has been granted environmental approval to move forward with plans to improve the US 93/I-40 traffic interchange in west Kingman.

ADOT issued a Finding of No Significant Impact after completing a Final Environmental Assessment for the project, which was prepared in compliance with the National Environmental Policy Act. The Final Environmental Assessment includes comments from the community received through the public hearing on May 28, 2020. The document is posted at

The improvements to the traffic interchange include a free-flowing direct connection between US 93 and I-40, designed to reduce congestion and improve traffic flow. Currently, traffic switching between the highways must stop at an intersection with a traffic signal before proceeding.

The new traffic interchange is designed to accommodate both current and projected traffic volumes for this area for the next 25 years.