Missouri State Of--highway Maintenance Barn Rr 2 Tarkio, MO 64491 Phone : (660) 744-5591 Business Category Government Offices & Public Schools Highway Maintenance Department 17009 Us Highway 136 W Rock Port, MO 64482 Phone : (660) 744-5591 Business Category Government Offices-State Highway & street construction Road Maintenance Government Offices State & Local Government Offices & Public Schools