18 bridges with vertical clearance data on SR-1 in Louisiana. Lowest: 69.9ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 69.9ft | La0001 | Co Canal Lockport | .1 Mi North Of La 655 | 1959 | Map |
| 133.2ft | La0001-X | Cane River | .01 Mi. S Of Int La1224 | 1936 | Map |
| 149.0ft | La0001 | Atchafalaya River | 0.18 Mi. East Of La 105 | 1971 | Map |
| 157.5ft | La0001 | Intracoastal Canl | .05 Mi North Of La 24 | 1961 | Map |
| 159.8ft | La0001 | Kcs Rr/Jones St | 2.6 Mi North Of La 3032 | 1954 | Map |
| 169.9ft | La0001 | I-49 | 0.6 Mi South La 1200 | 1989 | Map |
| 169.9ft | La0001 | Bayou Plaquemine | 0.20 Mi Se Of La 77 | 1950 | Map |
| 187.3ft | La0001 | Jones St/Kcs Rr | 2.6 Mi North Of La 3032 | 1983 | Map |
| 195.5ft | La0001 | Port Allen Canal | 1 Mi N Of La 988 | 1960 | Map |
| 229.0ft | La0001 | Mo Pacific Rr | 0.25 Mi N Of La 987-2 | 1952 | Map |
| 230.0ft | La0001 | Mo Pacific Rr | La0001 | 1966 | Map |
| 232.3ft | La0001 | Kcs Railroad | 0.43Mi Nw Of Int. La 538 | 1994 | Map |
| 232.3ft | La0001 | Kcs Rr & Dr T Doo'S Rd | 0.14 Mi. North Of La 1186 | 1971 | Map |
| 263.1ft | La0001 | Mp Rr | 3.53 Mi. N Of N Jct La 8 | 1994 | Map |
| 999.7ft | La0001 | Bayou Thunder Overflow | 6.8 Mi E Of La 3090 | 2019 | Map |
| 999.7ft | La0001 | Bayou Thunder | 6.2 Mi E Of La 3090 | 2019 | Map |
| 999.7ft | La0001 | Bayou Ferblanc | 5.7 Mi E Of La 3090 | 2019 | Map |
| 3277.6ft | La 1 | Caddo Lake | 12.28 | 2024 | Map |