Design Concept Report and Environmental Studies
Federal Aid No. STP-040-C(BBR)
Project No. 040 CN 183 H7586 01L

The Arizona Department of Transportation and the Federal Highway Administration, as lead federal agency, are conducting engineering and environmental studies to develop a long-range plan for the improvement of the Interstate 40 corridor west of the Bellemont traffic interchange to east of the Winona traffic interchange. This section of the I-40 corridor runs through the city limits of Flagstaff. A series of improvements will be developed to provide for greater capacity and to ensure smooth operations for the traffic volumes that are projected to occur over the next 30 years. The design concept report will consider roadway, bridge, and drainage improvements. Environmental issues will also be assessed. When the reports are complete, potential projects will be identified and priorities established for future inclusion in ADOT’s construction program when funding is available.