The Wrightsville Dam was a 19th-century dam on the lower Susquehanna River between Wrightsville and Columbia, Pennsylvania.
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.McClure, James, Where exactly is the Susquehanna River's Holtwood Dam?, York Town Square blog, York Daily Record, Retrieved 2008-10-14.
See also List of dams and reservoirs of the Susquehanna River
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