Brandon Jones, division maintenance engineer for the state Department of Transportation, said the state Department of Correction would have three or four inmate crews picking up roadside litter four days a week.
Prison officials suspended the use of inmate crews last July after an inmate was killed along Interstate 40. The DOT and DOC reinstated the practice last week after agreeing to measures to improve safety.
Since last Monday, crews have picked up 1,000 bags of trash along I-40, Jones said. The crews are expected to finish the stretch of I-40 in Wake County next week before moving to Interstate 540, U.S. Highway 1 and U.S. Highway 64, he said.
Clearing all Wake County highways will take about two months, he said.