18 bridges with vertical clearance data on SR-31 in Alaska. Lowest: 167.7ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 167.7ft | Seward Highway | Resurrection River No 1 | Mile Point 2.8 | 2003 | Map |
| 167.7ft | Seward Highway | Resurrection River No 2 | Mile Point 3.0 | 2003 | Map |
| 167.7ft | Seward Highway | Resurrection River No 3 | Mile Point 3.1 | 2003 | Map |
| 167.7ft | Seward Highway | Clear Creek (Seward Hwy) | Mile Point 3.8 | 1967 | Map |
| 167.7ft | Seward Highway | Salmon Creek | Mile Point 6.0 | 1979 | Map |
| 167.7ft | Seward Highway | Bear Creek | Mile Point 6.6 | 1979 | Map |
| 167.7ft | Seward Highway | Snow River West Channel | Mile Point 17.0 | 1965 | Map |
| 167.7ft | Seward Highway | Snow River Cntr Channel | Mile Point 17.5 | 1965 | Map |
| 167.7ft | Seward Highway | Victor Creek | Mile Point 19.4 | 2023 | Map |
| 167.7ft | Seward Highway | Ptarmigan Creek | Mile Point 22.9 | 2012 | Map |
| 167.7ft | Seward Highway | Falls Creek | Mile Point 24.8 | 2012 | Map |
| 167.7ft | Seward Highway | Trail River | Mile Point 25.1 | 2013 | Map |
| 167.7ft | Seward Highway | Grouse Creek No. 2 | Mile Point 7.9 | 1937 | Map |
| 167.7ft | Seward Highway | Grouse Creek No. 1 | Mile Point 8.0 | 1979 | Map |
| 167.7ft | Seward Highway | Moose Creek | Mile Point 31.8 | 1976 | Map |
| 200.1ft | Seward Highway | Seward Hwy Oh Snow River | Mile Point 18.0 | 1979 | Map |
| 213.3ft | Seward Highway | Seward Hwy Oh Golden Fin | Mile Point 11.9 | 1979 | Map |
| 240.8ft | Seward Highway | Seward Hwy Oh Mp 14.0 | Mile Point 14.0 | 2000 | Map |