A truck blocked traffic on ramp to I-77 from Charleston Highway Monday.

The Cayce Department of Public Safety (CDPS) reports an overturned tractor trailer blocked traffic at the entrance to Interstate 77 on Charleston Highway Monday morning.

The lanes heading into Columbia and the ramp to the interstate are blocked and clean-up was to take several hours.

The 18-wheeler was carrying a load of dog food and crews on the scene are having to assess whether the cargo will be needed to be off-loaded by hand before righting the rig.