| Business | Phone |
| Highway & Transportation Dept 1711 Highway 61 S, Hannibal 63401 | (573) 248-2449 |
| Transportation Dept-Engineer 4925 County Road 288, Hannibal 63401 | (573) 769-4204 |
| Transportation Maintenance 1711 D Maintance Bldg, Hannibal 63401 | (573) 248-2560 |
| Transportation Maintenance Highway 61 S, Hannibal 63401 | (573) 248-2560 |
| Transportation Project Office 1711 Highway 61 S # C, Hannibal 63401 | (573) 248-2441 |