8 bridges with vertical clearance data on 818 in Kansas. Lowest: 999.7ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 999.7ft | 4500 Rd Mile 13 | Verdigris River | 7.4N Of Coffeyville | 1960 | Map |
| 999.7ft | 3400 Rd Mile 19 | Stream | 1.2W Of Liberty | 1959 | Map |
| 999.7ft | 3425 Rd Mile 21 | Big Hill Creek | 0.3E Of Liberty | 1956 | Map |
| 999.7ft | 3400 Rd Mile 22 | Stream | Trib. To Potato Creek | 1930 | Map |
| 999.7ft | Sw 100Th -Se 7 Ave | Walnut River | 0.7 E Of Augusta | 1937 | Map |
| 999.7ft | Sw 100Th | Unnamed Watercourse | 1.8E Of Augusta | 1937 | Map |
| 999.7ft | Sw 100Th | Unnamed Watercourse | 3.8W Of Leon | 1937 | Map |
| 3248.0ft | Irr Bia Rte 818 | Roys Creek | 2.1Km W Of Tribal Hdq | 1997 | Map |