Lower Monumental Lock and Dam is a hydroelectric concrete run-of-the-river dam on the Snake River and bridges Franklin County and Walla Walla County in the state of Washington. The dam is located six miles (10 km) south of the town of Kahlotus and 43 miles (69 km) north of the town of Walla Walla. Construction began in June 1961. The main structure and three generators were completed in 1969 with an additional three generators finished in 1981.
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point
length (km)
1155.5
building start year
1961-01-01T00:00:00+02:00
height (cm)
30.48
location
Franklin County Washington, Walla Walla County Washington, Washington (state)
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