Gem State Dam is a concrete and rock-fill gravity dam on the Snake River, in the U.S. state of Idaho. Its location is near Idaho Falls, Idaho. The dam's primary purpose is to generate hydroelectricity, but it also provides water for irrigation agriculture.

Gem State Dam
Location of Gem State Dam in Idaho
Location	Bonneville County, Idaho
Coordinates	43°25′15″N 112°6′7″W
Opening date	1988[1]
Operator(s)	City of Idaho Falls[1]
Dam and spillways
Impounds	Snake River
Height	40 ft (12 m)[1]
Reservoir
Total capacity	6,700 acre-feet (8,300,000 m3)[1]
Catchment area	9,800 sq mi (25,382 km²)[1]
Surface area	305 acres (1.23 km²)[1]
Power Station
Installed capacity	22.6 MW [2]

Gem State Dam is owned and operated by the city of Idaho Falls.

See also

• List of dams in the Columbia River watershed

References

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