The dam stood at about river mile (RM) 225 or river kilometer (RK) 362, about 10 miles (16 km) by river downstream of the community of Keno.[4] Spencer Bridge carried the highway over the lake at about its midpoint.[4]
Water from the reservoir was diverted through a sluice to the Boyle Powerhouse, about 5 miles (8 km) downstream of the dam.[5] Fluctuations of up to 3 feet (0.9 m) daily in the reservoir level occured as water was added for storage or diverted for power generation.[6]
History
The California–Oregon Power Company (COPCO), which later merged with Pacific Power, a future subsidiary of PacifiCorp, built the dam in the mid-1950s as part of the multi-dam Klamath River Hydroelectric Project.[7] Meant primarily to generate hydroelectricity, the reservoir can hold up to 4,200 acre-feet (5,200,000 m3) of water.[1] Originally called Big Bend Reservoir, it was renamed in 1962 for John C. Boyle, COPCO's vice president, general manager, and chief engineer.[7]
The Boyle dam was one of four Klamath River dams to be removed in the 2020s.[8] The other three, all owned by PacifiCorp and all in California, were Iron Gate, Copco 2, and Copco 1.[9] A tentative agreement reached in 2009 by major stakeholders, including PacifiCorp, would remove the dams to restore salmon runs blocked below Iron Gate for about a century.[9]As of February 25, 2022, the FERC released their final Environmental Impact Statement (EIS) on the dam's removal.[10] The dam was finally removed in 2024.[11]
It is named after John C. Boyle (1899-1979), who was vice president, general manager, and long-time chief engineer of the California Oregon Power Company (COPCO), a privately held utility that served southern Oregon and portions of northern California.[12]
Topsy Recreation Site, maintained by the Bureau of Land Management, has a campground, a boat launch, a dock, and a fishing pier at J. C. Boyle Reservoir. Swimming, picnicking, and bird-watching are among recreational activities in addition to camping and fishing.[13][14]
^ abcJohnson, Daniel M.; Petersen, Richard R.; Lycan, D. Richard; Sweet, James W.; Neuhaus, Mark E., and Schaedel, Andrew L. (1985). Atlas of Oregon Lakes. Corvallis: Oregon State University Press. p. 214. ISBN0-87071-343-4.{{cite book}}: CS1 maint: multiple names: authors list (link)
^ abKramer, George. "John C. Boyle (1887–1979)". The Oregon Encyclopedia. Portland State University. Retrieved January 7, 2013.
^Burns, Ryan (December 27, 2012). "Top 10: Klamath Dam Removal Plan Stalls Out". The Journal. Eureka, California: The North Coast Journal Weekly of Politics, People & Art. Retrieved January 7, 2013.
^ abFimrite, Peter (September 30, 2009). "Deal to Raze 4 Klamath Dams". San Francisco Chronicle. Hearst Communications. Retrieved January 7, 2013.