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The Holtwood plant has been generating electricity since 1910, using the power of the water held back by a 55-foot-high dam across the Susquehanna River between Lancaster and York counties.

In 2013, Holtwood completed a new, 125-megawatt powerhouse, more than doubling its generating capacity.

The multi-year project created more than 300 construction jobs. Crews excavated more than 1.3 million cubic yards of rock, poured more than 71,000 cubic yards of concrete, dealt with the challenge of major tropical storms and took care to minimize disruption to wildlife in the area.

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Susquehanna River Hotline


Holtwood River Warning Brochure
Land and Shoreline Management Plan

Waterflow Information


Environmental Stewardship

Environmental Stewardship

Whitewater Schedule