TRAVERSE CITY, Mich.—A hydroelectric dam that failed to hold back floodwaters this week in Michigan was the target of lengthy investigations by federal regulators, who revoked the facility’s license over safety violations two years before the flooding that forced 10,000 people to evacuate their homes.
Boyce Hydro Power’s history of violations lasted throughout the 14 years the company was authorized to run the nearly century-old Edenville dam, according to the Federal Energy Regulatory Commission, which said it repeatedly raised concerns about the dam’s ability to prevent flooding during extreme conditions because of its inadequate spillway capacity.
