Interstate 40: Markham Wash Bridge to East Seligman Traffic Interchange

The Arizona Department of Transportation in conjunction with the Federal Highway Administration is improving the roadway along a 15-mile stretch of westbound I-40 between the Markham Wash Bridge and the East Seligman traffic interchange (Exit 123). The improvements and repairs include the following:

  • Reconstruct sections of the roadway
  • Mill and replace existing pavement
  • Apply a fog-seal coat
  • Improve the highway shoulder
  • Replace existing  guardrails

Construction is anticipated to be completed by mid-July 2020. The purpose of this project, which is within ADOT right of way, is to improve roadway safety and extend the life of the pavement.

Project Map

I-40: Markham Wash Bridge to East Seligman Traffic Interchange Map

Stay Informed

Schedules are subject to change based on weather and other unforeseen factors.  Subscribe to receive project updates and traffic alerts by email. For more information, please call the ADOT Bilingual Project Information Line at 855.712.8530 or submit a question or comment by email.  For real-time highway conditions statewide, visit ADOT’s Traveler Information Site at, follow ADOT on Twitter (@ArizonaDOT) or call 511, except while driving.