Box Canyon Dam (Washington)

Box Canyon Dam
Location	Pend Oreille County, Washington
Coordinates	48°46′49″N 117°24′45″W / 48.78028°N 117.41250°W / 48.78028; -117.41250
Construction began	1952[1]
Opening date	1956[1]
Operator(s)	Pend Oreille PUD[2]
Dam and spillways
Impounds	Pend Oreille River
Height	62 ft (19 m)[1]
Length	160 ft (49 m)[1]
Reservoir
Creates	Box Canyon Reservoir
Total capacity	60,000 acre-feet (74,000,000 m3)[2]
Catchment area	24,900 sq mi (64,490 km2)[2]
Surface area	5 acres (20,000 m2)[2]
Power Station
Installed capacity	90 MW[1]

Box Canyon Dam is a gravity-type hydroelectric dam on the Pend Oreille River, in northeastern Washington state in the United States.

It has a capacity of 90 MW and an average expected production of 60 MW. The reservoir extends 55 miles (89 km). The dam is 160 feet (49 m) wide and 62.4 feet (19.0 m) high at the top of the gates. The maximum head of water is 46 feet (14 m). It produces power using four Kaplan turbines. An upgrade completed in 2015 brought the dam's rated capacity up to 90 MW from the original 69 MW.^[1]