Interstate 40 (I-40) is a major east–west transcontinental Interstate Highway in the southeastern and southwestern portions of the United States. At a length of 2,556.61 miles (4,114.46 km), it is the third-longest Interstate Highway in the country, after I-90 and I-80.

Interstate 40 (I-40) Map showing road network from Barstow, California to Wilmington, North Carolina covering CA, AZ, NM, TX, OK, AR, TN, NC.

Interstate 40 highway connects the cities of California, Arizona, New Mexico, Texas, Oklahoma, Arkansas, Tennessee, North Carolina state. Detailed map interstate route I-40 with interchange and exit numbers.

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We currently provide real-time traffic maps for several dozen cities located along the i-40 corridor, as well as i-40 corridor news, and i-40 corridor weather.

6 days ago · A multiyear reconstruction plan for Interstate 40. To stabilize and reopen a portion of I-40 has taken NCDOT months. To fully repair I-40 at the gorge, it will take years, according to Uchiyama.

This page shows the location of I-40, United States on a detailed road map. Choose from several map styles. From street and road map to high-resolution satellite imagery of Interstate 40.

Spanning eight states Interstate 40 is a major cross country freeway connecting the Desert Southwest with the Southeastern United States. Starting in Barstow, California, the freeway generally follows the alignment of Historic U.S. 66 across the Mojave Desert into the high desert.

Connecting the East Coast and West Coast, I-40 takes travelers from Barstow, California, to Wilmington, North Carolina, passing through major cities such as Flagstaff, Albuquerque, Little Rock, Memphis, and Nashville. Along the way, you'll find iconic Route 66 sites, cool towns, and picturesque parks. Check out our favorite things to do on I-40.

Interstate 40 is approximately 2559 miles long. At that distance, it is the third longest of all US interstates, stretching across the majority of the country from east to west. Its western end is near the west coast of the United States at Barstow, California, and its eastern end is near the east coast at Wilmington, North Carolina.