New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Shore Drive, Greenwich, Fairfield County, CT

Significance: The electrification of the New Haven Railroad was an innovative technological venture. The pioneering engineers of Westinghouse and the New Haven Railroad created the first long distance railroad electric transmission system in the United States. The Cos Cob power plant supplied the system with single phase alternating current at 25 cycles and 11,000 volts. It was a successful trailblazing effort that set the standard for American railroads.
Unprocessed Field note material exists for this structure: N751
Survey number: HAER CT-142-A
Building/structure dates: 1905-1907 Initial Construction
Building/structure dates: 1911-1912 Subsequent Work
National Register of Historic Places NRIS Number: 90001096