6 bridges with vertical clearance data on SR-18 in Mississippi. Lowest: 130.6ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 130.6ft | Sr 18 | Robinson Rd, Lynch St | 0.4 Mi E I 20 | 1967 | Map |
| 144.0ft | Sr 18 | Robinson Rd, Lynch St | 0.4 Mi E I 20 | 1967 | Map |
| 152.6ft | Sr 18 | Natchez Trace | 1.3 Mi E Us 61 | 1963 | Map |
| 157.5ft | Sr 18 | I 20 | Sr 18 Over I 20 | 1969 | Map |
| 164.7ft | Sr 18 | Us 45 | Sr 18 Over Us 45 | 1998 | Map |
| 173.6ft | Sr 18 | I 20 | Sr 18 Over I 20 | 1969 | Map |