Louisiana has 9 navigation dams. The dam maintains water levels sufficient for boat and barge traffic, supporting commercial or recreational navigation on the waterway.
| # | Dam | County | Height (ft) | Hazard | Condition | Year |
|---|---|---|---|---|---|---|
| 1 | Red River Lock and Dam 3 | Natchitoches | 134 | Significant | Not assessed | 1991 |
| 2 | Joe D. Waggonner, Jr. Lock and Dam | Caddo | 122 | Significant | Not assessed | 1985 |
| 3 | Lindy Claiborne Boggs Lock and Dam | Catahoula | 110 | Significant | Not assessed | 1985 |
| 4 | Russell B. Long Lock and Dam | Red River | 110 | Significant | Not assessed | 1995 |
| 5 | John H. Overton Lock and Dam | Rapides | 104 | Significant | Not assessed | 1987 |
| 6 | Jonesville Lock and Dam | Catahoula | 94 | Significant | Not assessed | 1972 |
| 7 | Columbia Lock and Dam | Caldwell | 90 | Significant | Not assessed | 1970 |
| 8 | Little River Closure Dam | Catahoula | 55 | Low | Not assessed | 1972 |
| 9 | Caddo Dam | Caddo | 48 | Low | Not assessed | 1971 |