Cole County Of--public Works Department, County Park Jefferson City, MO 65101 Phone : (573) 636-3614 Business Category Government Offices-County Business Services Government Offices & Public Schools Cole County Of--public Works Department, Chris Yarnell Director 5055 Monticello Rd Jefferson City, MO 65109 Phone : (573) 636-3614 Business Category Highway & street construction Business Services Grading Contractors Road Maintenance