We're getting a better idea of just what engineers are facing as they work to repair to that landslide on the Tennessee border.
The ground has slid more than 180 feet down the hillside, as crews have been making repairs in Jellico, Tennessee.
That’s just south of the Kentucky state line.
50 foot bars are buried under the asphalt to create a wall to stop any further erosion.
Next crews will move to the bottom bedrock and build up with rock.
"The new design is going to involve building the embankment with rock,” Saieb Haddad said.
Officials say southbound lanes are scheduled to re-open on May 21st.