Blanchard Dam

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Blanchard Dam
Blanchard Dam on Mississippi River.jpg
The Blanchard Dam buildings in 2013
Location Morrison County, Minnesota, USA
Coordinates 45°51′38″N 94°21′36″W / 45.86056°N 94.36000°W / 45.86056; -94.36000Coordinates: 45°51′38″N 94°21′36″W / 45.86056°N 94.36000°W / 45.86056; -94.36000
Opening date 1925
Dam and spillways
Impounds Mississippi River
Height 46 ft

Blanchard Dam is a dam across the Mississippi River, in Bellevue Township and Swan River Township, Morrison County, near the city of Royalton, Minnesota.[1] Blanchard is a hydroelectric station owned and operated by Minnesota Power. The dam sits slightly upriver from the former Soo Line rail bridge. The bridge now carries a recreational trail.

Blanchard Dam is the tallest dam on the Mississippi River at 47 feet of water head.[citation needed]

Because of its design, it provides the most accurate water flow statistics of the Mississippi in central Minnesota. Daily, monthly and yearly statistical data in cf/s (cubic feet per second) since 1924 are available at the United States Geological Survey website.

Blanchard Dam is also one of a very few known places on earth where Staurolite is found.[citation needed]

Little Falls Dam
Locks and dams on the Mississippi River Downstream:
Sartell Dam


  1. ^ Waters, Thomas (1977). Streams and Rivers of Minnesota. University of Minnesota. ISBN 0-8166-0960-8. Retrieved 2010-10-11.