Hurricane Helene Washes Out I-40, Closes I-26 as Western North Carolina Shuts to Travel

Flooding from Hurricane Helene left two key interstates across the Appalachians closed as of September 30, 2024, cutting off major truck routes through the mountains.

Floodwaters washed out the eastbound lanes of Interstate 40 near the North Carolina-Tennessee line. The interstate was closed for 43 miles in both directions between Exit 432 in Tennessee and Exit 20 in North Carolina, Commercial Carrier Journal reported. Interstate 26 was closed in Tennessee from mile marker 39 to the North Carolina state line.

North Carolina officials projected an October 2025 reopening date for I-40 in the western part of the state, CCJ reported on October 1.

"Do not travel"

The North Carolina Department of Transportation issued a no-travel advisory for the western part of the state. "I-40 is impassable in multiple locations. I-26 is closed at the Tennessee state line. There are many closed roads that are not listed on this site as many areas are not able to report at this time. All roads in Western North Carolina should be considered closed and non-emergency travel is prohibited," NCDOT said.

Asked how the advisory applied to freight deliveries, an NCDOT representative told CCJ that "we do not yet have an established detour for I-40" and that drivers should delay travel in the region. The representative said damage, power outages and cell service problems meant not all closed roads had been entered into the state's DriveNC.gov system as of September 30.

Truckers News reported more than 60 closures along primary routes including I-40, U.S. 74 and U.S. 64, with most closures west of Interstate 77. Many truck stops and travel centers were closed or had reduced services.

"The scope and magnitude of this devastation is unlike anything many long-time residents have ever seen in western North Carolina," NCDOT Secretary Joey Hopkins said. "We're doing everything we can to help North Carolina recover from this devastating storm but this will be a long-term effort. We need people to be patient and help us with the recovery effort by staying off the roads."

The wider storm

Truckers News reported that the death toll stood at 120 across six states as of September 30, more than 2 million customers were without power, and the storm's path of destruction stretched 800 miles from the Florida Panhandle to Tennessee and Kentucky. As much as 29 inches of rain fell in the North Carolina mountains.

Hours-of-service relief

Between September 23 and 27, the governors of Florida, Georgia, North Carolina, South Carolina, Tennessee, Virginia and West Virginia issued emergency declarations for Helene, each providing up to 14 days of relief from federal hours-of-service limits for drivers supporting emergency efforts, according to FMCSA. Presidential disaster or emergency declarations issued from September 24 to 27 covered seven states. The relief applies to carriers giving direct assistance to the emergency, not to routine commercial deliveries.

What it means for drivers and fleets

For long-haul drivers, the Helene closures removed I-40 and I-26 as through routes across the mountains, with no established detour in place for I-40 at the end of September 2024. Dispatchers had to route freight around the region, well beyond the damaged stretches, and drivers needed to check DriveNC and Tennessee's SmartWay before trusting GPS through the area. Carriers hauling relief supplies could use the emergency hours-of-service relief, but only for direct assistance, and drivers heading into the area had to plan for closed truck stops and limited fuel.