French Lake Reservoir

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French Lake Reservoir
French Lake Reservoir
Location	Nevada County, California, United States
Coordinates	39°25′15″N 120°32′32″W / 39.420700°N 120.542248°W / 39.420700; -120.542248
Built	1859; 165 years ago (1859), reconstructed 1948; 76 years ago (1948)
Surface area	1.36 km2 (0.53 sq mi)
Water volume	Max 17,000,000 m3 (14,000 acre⋅ft)
References	[1]

French Lake Reservoir (National ID # CA00247) is a reservoir in Nevada County, California.

The earthen, rock-fill French Lake Dam was first constructed in 1859, and is a candidate for the first use of rock-fill in an engineered dam.^[1] Reconstructed in 1948, it impounds Canyon Creek for flood control, irrigation water storage, municipal drinking water, and hydropower. The dam is 100 feet (30 m) high, with a length of 300 feet (91 m) at its crest.^[2] It is one of ten facilities operated by Nevada Irrigation District.