Tennessee has 2 navigation dams, of which 1 carry a high hazard classification. 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 | Old Hickory Lock and Dam | Davidson | 98 | High | Not assessed | 1954 |
| 2 | Cheatham Lock and Dam | Dickson | 75 | Significant | Not assessed | 1954 |