History
The hydroelectric development of the Deerfield River began in 1910 when the New England Power Company formed to acquire water rights on the Deerfield and construct dams. The largest dam, Harriman, was built in the early 1920s and has an unusual overflow structure, known as "The Glory Hole." This structure is a funnel-like concrete tube that leads to a tunnel under the earthen dam and prevents high flows from overtopping the dam.
The last dam built on the Deerfield was Fife Brook Dam, which was built in the early 1970s in conjunction with the development of the Bear Swamp Pumped Storage facility. This facility acts as a battery for power generated during times of low demand. By using excess electricity to pump water to the top of the mountain, where a reservoir was created by building levees around an existing high swamp, energy is stored. When electrical demand is higher (usually midday or afternoon/evening) the water from the upper reservoir can be released through the turbines (which act as pumps in reverse) to meet demand.
The third commercial nuclear reactor in the United States was built in the town of Rowe, Massachusetts, on the banks of the Deerfield River by Sherman Reservoir. Known as "Yankee Rowe," it generated electricity for New England from 1960 to 1992.
The eastern entrance of the Hoosac Tunnel is located on the river in the town of Florida, Massachusetts. It is a railroad tunnel, still in use, started in 1851 and completed in 1875. The Burleigh Rock Drill, one of the first pneumatic drills, was used in its construction. Construction also featured the first large-scale commercial use of nitroglycerine and electric blasting caps. The American Society of Civil Engineers made the tunnel a Historic Civil Engineering Landmark in 1975.
The Bardwell's Ferry Bridge is a 198-foot (60 m) long pin-connected through truss, built in 1882 and spanning the Deerfield River between the towns of Shelburne and Conway in Franklin County. It is the longest single-span lenticular bridge in Massachusetts. It has been listed on the National Register of Historic Places.
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