Lake Byllesby Dam

Lake Byllesby Dam is a concrete gravity dam located in [Randolph Township, Dakota County, Minnesota|Dakota County, Minnesota|Randolph Township], Dakota County and Stanton Township, Goodhue County, Minnesota, just west of the city of Cannon Falls. It is approximately southeast of the Twin Cities.
The -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 and a capacity of.
The facility is owned and operated by Dakota County.