Pinecrest, CA…At the request of Tri-Dam, the Stanislaus National Forest has issued Forest Order STF-16-2026-03; effective April 15 through June 15, 2026, closing the Beardsley Lake Boat Ramp for all use.

“Tri-Dam has been advised by the California Department of Fish and Wildlife that the Golden Mussel is a threat to Beardsley Lake and all its associated infrastructure for water delivery and hydropower production,” explained Forest Supervisor, Jason Kuiken.

To prevent the spread of this invasive species to Beardsley and subsequent downstream partners – Pacific Gas & Electric, United States Bureau of Reclamation, irrigators and water treatment plants in the valley – the Tri Dam Project has requested the boat ramp be closed. The action is aligned with actions taken by many reservoirs in California in response to the Golden Mussel threat.

For more information, contact Stanislaus National Forest Public Affairs Officer, Benjamin Cossel at benjamin.cossel@usda.gov.