Minnesota DNR request for US$10 million includes repairs at 8.8-MW St. Cloud hydroelectric facility

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Minnesota’s Department of Natural Resources (DNR) is petitioning the Minnesota State Legislature for US$10 million to repair six high-hazard dams including the 8.8-MW St. Cloud hydroelectric project, which is the state's largest city-owned hydroelectric project.

The other five high-hazard dams on the DNR’s statewide Dam Safety Projects priority list include: Bronson, Lanesboro, Pelican Rapids, Norway Lake at Pine River, and the Canby impoundment.

“A high-hazard dam is not necessarily in imminent danger of failing,” said Kent Lokkesmoe, director of capital investment for the DNR. "[High hazard] means if a dam were to fail, there would be significant property damage or loss of life.”

The spillway design at St. Cloud Dam allows water flow either through the generators or over the top of the dam. Several wooden lift-up gates divert the water level up to three feet higher to provide optimal conditions for electricity generation.

According to Pat Shea, the city of St. Cloud public services director, if the gates fall due to ice or debris, an employee supported by a safety wire must traverse the dam and use a chain system to manually raise the gates.

Should the state fund the project, part of the dam safety disbursement would also fund installation of a new automatic gate system.

The St. Cloud hydroelectric project, which generates more than twice as much power as the next largest city-owned plant, 4.4-MW Hastings hydroelectric project, is located next to St. Cloud State University. Students enrolled in hydrology related courses use the facility as a living classroom.
 

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