French Lake Reservoir

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French Lake Reservoir
French Lake Panorama (9123780892).jpg
French Lake Reservoir is located in California
French Lake Reservoir
French Lake Reservoir
LocationNevada County, California, United States
Coordinates39°25′15″N 120°32′32″W / 39.420700°N 120.542248°W / 39.420700; -120.542248Coordinates: 39°25′15″N 120°32′32″W / 39.420700°N 120.542248°W / 39.420700; -120.542248
Built1859 (1859), reconstructed 1948 (1948)
Max. length300 feet (91 m)
Surface area1.36 km2 (0.53 sq mi)
Water volumeMax 17,000,000 m3 (14,000 acre⋅ft)

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.


French Lake Reservoir has a surface area of 337 acres (136 ha) and a maximum capacity of 13,800 acre-feet (17,000,000 m3). The site is surrounded by Tahoe National Forest. The adjacent namesake townsite of French Lake, California is a ghost town of the California Gold Rush era.

See also[edit]


  1. ^ a b Journal of the Soil Mechanics and Foundations Division, Volume 92, page 135
  2. ^