Navigation Dams in Maryland
Maryland has 1 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 | Great Falls Dam, Lock No. 20 | Montgomery | 8 | Low | 1850 |