Highway Patrol 1032 N Service Rd W Saint Clair, MO 63077 Phone : (636) 629-7711 Business Category State Police Missouri State Of--public Safety Dept Of, Highway Patrol, Weigh Station Westbound Ln I-44 Saint Clair, MO 63077 Phone : (636) 629-7711 Business Category Government Offices-State Communication Services Government Offices State & Local Government Offices & Public Schools