O'Shaughnessy Dam, Gravity dam in Delaware County, United States.
The O'Shaughnessy Dam spans 1505 feet across the Scioto River, featuring an 879-foot concrete spillway that forms a substantial reservoir near Dublin, Ohio.
Construction workers earned 50 cents per hour during the 1925 dam project, with Thompson-Starrett Company managing the 2.3 million dollar development under Frank Packard's design.
The National Register of Historic Places recognized this engineering structure in 1990 for its role in supporting Columbus's water infrastructure development.
The reservoir holds 6.3 billion gallons of water across 912 acres, reaching depths of 40 feet near the dam structure and 20 feet throughout most areas.
A hydroelectric facility installed in 1987 on the west side of the dam generates 5 megawatts of power when water conditions permit optimal operation.
Location: Delaware County
Inception: 1922
Architects: Frank Packard
GPS coordinates: 40.15389,-83.12583
Latest update: May 17, 2025 10:26
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