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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
Coordinates Coordinates: 44°30′42″N 92°56′24″W / 44.51180°N 92.94005°W / 44.51180; -92.94005
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)
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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