MITCHELL, S.D. (MITCHELLNOW) The South Dakota Highway Patrol will be conducting sobriety checkpoints in 15 counties throughout the month of March. The goal is to crack down on impaired driving. Checkpoints will be carried out by the Highway Patrol and other law enforcement agencies in Codington, Lawrence, Minnehaha, Pennington, and several other counties. Drivers are reminded not to drink and drive whether there’s a checkpoint in the area or not.