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Lake Byllesby Dam facts for kids

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Byllesby Dam
Country United States
Location Dakota County and Goodhue County, Minnesota
Status Operational
Opening date 1910
Owner(s) Dakota County, Minnesota
Dam and spillways
Type of dam Concrete gravity dam
Impounds Cannon River
Height 75-foot (23 m)
Reservoir
Creates Lake Byllesby
Total capacity 20,000 acre feet (25,000,000 m3)
Surface area 1,432 acres (580 ha)

Lake Byllesby Dam is a concrete gravity dam located in Randolph Township, Dakota County and Stanton Township, Goodhue County, Minnesota, just west of the city of Cannon Falls. It is approximately 30-mile (48 km) southeast of the Twin Cities.

The 75-foot (23 m)-high dam was built in 1910 by H.M. Byllesby & Company to impound the Cannon River for hydroelectric power. Its nameplate capacity is 1.8 MW. Byllesby, a former employee of both Edison and Westinghouse, formed what would become Northern States Power in 1909.

The dam created Lake Byllesby, with a surface area of 1,432 acres (580 ha) and a capacity of 20,000 acre feet (25,000,000 m3).

The facility is owned and operated by Dakota County.

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