Columbia police arrested 11 people for DWI during the St. Patrick??s Day holiday weekend.
Officers took part in a statewide impaired driving crackdown.
Throughout the weekend, police worked overtime and targeted drunk drivers.
Columbia officers held a sobriety checkpoint at the corner of Locust and Waugh streets on Friday night in Downtown Columbia near the bars.
More than 170 motorists were checked for drinking and driving.
They conducted another sobriety checkpoint in the same area on Saturday night and checked more than 100 people.