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After finding a small earthen dam to be inadequate, the T. Chalkey Hatton firm was commissioned to build a large concrete gravity dam across the valley. The dam was 50 feet (15 m) high and 540 feet (160 m) long, and cost $86,000 to construct, (nearly $3,000,000 today adjusted for inflation). [1]
A modern view of the South Fork Dam. The large gap overlooked by the two wooden terraces pictured is the breach that caused the Johnstown Flood.. The South Fork Dam was an earthenwork dam forming Lake Conemaugh (formerly Western Reservoir, also known as the Old Reservoir and Three Mile Dam, a misnomer), [1] an artificial body of water near South Fork, Pennsylvania, United States.
The remaining abutment of the South Fork Dam with the US-219 highway bridge downstream in the background. The city of Johnstown, Pennsylvania was founded in 1800 by Swiss immigrant Joseph Johns (anglicized from "Schantz") where the Stonycreek and Little Conemaugh rivers joined to form the Conemaugh River.
During the 1860s, the Johnstown Water Company was planning new infrastructure to meet the municipal water needs of Johnstown, Pennsylvania. Laurel Run and Wild Cat Creeks were initially selected as sources and a dam was constructed on Laurel Run Creek in 1869 that impounded the 9 million US gallons (34,000 m 3) Laurel Run reservoir No. 1.
The 1930s dam also presents a flood risk since it's not equipped to handle the maximum amount of precipitation that could fall in the area, according to Pennsylvania Department of Environmental ...
Pages in category "Disasters in Pennsylvania" ... 2013 Philadelphia building collapse; A. Austin Dam failure (Pennsylvania)
Work on the dam removal project began in June. The smallest dam, Copco No. 2, was torn down by crews using heavy machinery. The other three dams are set to be dismantled next year, starting with a ...
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