According to Alabama State Troopers, a wreck Monday morning involving an 18-wheeler, left traffic at a standstill for most of the day.
As of 4 p.m. Monday, traffic remained backed up. It was unclear when the highways would be reopened.
State troopers said the wreck happened around noon at the intersection of Alabama Highways 35 and 40 at the bottom of Sand Mountain.
According to reports, an 18-wheeler lost control turning from Highway 40 onto Highway 35, overturned and spilled a load of large metal beams. One of the beams hit a pickup and sent it into the Tennessee River.
The driver was airlifted to Huntsville Hospital. Troopers said, other than that, there were only minor injuries.