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.

I 40 Live traffic coverage with maps and news updates - Interstate 40

Driving through the USA? Review this detailed map of Interstate 40. Plan your next travel route across this major highway today.

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.

Check out an interactive map of all the best things to do on I-40. Turn your trip into an adventure, and make sure you don't miss a thing.

Jun 27, 2025 · After yet another weather-related closure, Interstate 40 at the Tennessee and North Carolina border has reopened after a rockslide and flood closed the road through the …

Jun 27, 2025 · Interstate 40 is open once again at the Tennessee and North Carolina state line. The highway reopened June 27 following a rockslide and flood that overtook the road June 18.

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.

Interstate 40 (abbreviated I-40) is a major west-east interstate highway in the United States. Its western terminus is at Interstate 15 in Barstow, California; its eastern terminus is at a concurrency of U.S. Route 117 and North Carolina Highway 132 in Wilmington, North Carolina.

Interstate highway I-40 connects the cities of states: California, Arizona, New Mexico, Texas, Oklahoma, Arkansas, Tennessee, North Carolina. Detailed map of interstate route I40 with interchange and exit numbers.