The highway is 2,559 miles long. It passes through California, Arizona, New Mexico, Texas, Oklahoma, Arkansas, Tennessee and North Carolina. Of that total, 455 miles of I-40 go through Tennessee.

Drivers on Interstate 40 west of Seligman should expect delays starting July 21 due to a long-term roadwork project.

In northeast Arizona, Interstate 40 is under a heavy load, serving between 20,750 to 27,600 vehicles per day, according to the Arizona Department of Transportation (ADOT).