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The Nature Conservancy Buys Four Maine Dams

The $168 million purchase will enable removal of dams blocking Atlantic salmon access to historic spawning grounds, restoring 825 miles of habitat, officials said.

  • On Tuesday, The Nature Conservancy announced a $168 million deal with Brookfield Renewable to buy four lower Kennebec River dams: Lockwood, Hydro-Kennebec, Shawmut, and Weston.
  • Restoration advocates say reconnecting the Sandy River is essential to recovering endangered Atlantic salmon after decades of decline, while The Nature Conservancy plans to restore the Kennebec to free-flowing conditions.
  • Operationally, Brookfield will continue operating the dams while a new nonprofit, Kennebec River Restoration Trust, manages transition and restoration funding, needing at least $140 million more.
  • Sappi North America says removing the four dams would cut 46 megawatts and cost Waterville, Skowhegan, Winslow and Fairfield more than $500,000 annually, risking jobs at Skowhegan paper mill.
  • Ecologically, past removals show river herring rose 228% after Edwards Dam and 1425% after Fort Halifax Dam; roughly 1,200 Atlantic salmon now return annually, with 825 miles of habitat to reopen.
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Spectrum Local News broke the news in United States on Tuesday, September 23, 2025.
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