Kerckhoff Dam, Hydroelectric power station and arch dam in Fresno County and Madera County, United States
Kerckhoff Dam is a concrete arch structure spanning 155 meters across the San Joaquin River in the Sierra Nevada foothills. The reservoir behind it stores water for both hydroelectric generation and irrigation throughout the surrounding counties.
The dam was constructed in 1920 as the first hydroelectric facility on the San Joaquin River and part of a larger regional development scheme. A second powerhouse was added in 1983 to boost electricity production capacity.
The facility takes its name from William George Kerckhoff, an industrialist whose investments shaped California's power infrastructure in the early 1900s. His vision drove the development of water-based electricity generation in this remote mountain area.
Access to the dam and reservoir is via mountain roads in a remote, steep area, so a reliable vehicle is necessary for visiting. Water release schedules and road conditions can vary seasonally, so it is best to check local access information before making the trip.
The facility operates four Francis turbines split between two separate powerhouses, producing around 193 megawatts of capacity. These turbines were added over several decades, reflecting the evolving technology and engineering methods of their respective eras.
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