Jeffery W. Davignon, 56, pleaded guilty in Richmond County Superior Court on Thursday to charges including driving under the influence and serious injury by vehicle.
Judge J. Wade Padgett also sentenced Davignon to an additional seven years probation.
According to court records, on March 9, 2012, Davignon had three prescription drugs and marijuana in his system when he crossed the center line on Lumpkin Road and struck a vehicle driven by Mildred Mills. The wreck broke both of her legs.