Holtwood Dam

Posted by on Apr 19, 2016 in | Comments Off on Holtwood Dam   In October 1905 McCall’s Ferry Power Co. began construction in Martic Township, Lancaster County, on what would be the second of four hydroelectric dams built to harness the power of the Susquehanna River below Harrisburg, Dauphin County. Twenty miles from the tidewater of the Chesapeake Bay, it was then the third longest dam in the world, built of solid concrete, 55 feet high. The...
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Industrial Heritage Trails

Posted by on Apr 12, 2016 in | Comments Off on Industrial Heritage Trails America’s first significant industries date back to the 18th century with the iron plantations in Pennsylvania and the development of the factory system in New England textile mills. Preservation of our industrial heritage, however, is a fairly recent phenomenon, beginning for the most part after World War II. Prior to the war, federal programs and even private initiatives were designated...
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Looking Back at the Year: 2013

Posted by on Dec 2, 2013 in | Comments Off on Looking Back at the Year: 2013 As 2013 draws to a close it’s time to look back at several of the highlights we covered in the Trailheads blog this year. As always, the historic sites and museums along the Pennsylvania Trails of History faced challenges with patience and perseverance, as paid and volunteer staff worked to provide engaging programs, tours and exhibits for visitors and for their local communities. The ongoing...
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“Atoms for Peace” in Pennsylvania

Posted by on Nov 20, 2013 in | Comments Off on “Atoms for Peace” in Pennsylvania In 1957, Shippingport, along the Ohio River in far western Pennsylvania, became home to America’s first commercial nuclear power plant under President Dwight D. Eisenhower’s “Atoms for Peace” program. Just two decades later, the U.S. Department of Energy (DOE) converted the Beaver County plant to a light water breeder reactor that successfully demonstrated the feasibility...
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Photograph of Holtwood Hydroelectric Power Plant

Posted by on Nov 20, 2013 in | Comments Off on Photograph of Holtwood Hydroelectric Power Plant Early twentieth-century proponents of hydroelectricity favored this type of power for a number of reasons: its cost is relatively low, water is a renewable resource, and it does not cause pollution since it does not use fossil fuels. In addition, hydroelectric plants are in operation longer than fossil fuel facilities, require fewer workers, and have lower maintenance costs. A photograph of the...
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