The Wrightsville Dam was a 19th-century dam on the lower Susquehanna River between Wrightsville and Columbia, Pennsylvania.
| Wrightsville dam | |
|---|---|
| Official name | Wrightsville Dam |
| Location | Lancaster / York counties, Pennsylvania, USA |
| Construction began | 1840 |
| Opening date | 1840 |
| Operator(s) | defunct |
| Dam and spillways | |
| Impounds | Susquehanna River |
| Height | 10 feet |
| Length | ~5,000 feet |
The low-head dam was constructed in 1840 to impound the waters of the Susquehanna to provide a slackwater pool to allow the safe passage of canal boats from the Pennsylvania Canal on the Columbia (Lancaster County) side across the mile-wide rocky river to the Susquehanna and Tidewater Canal on the Wrightsville (York County) side.[1]