Beardsley Dam (National ID # CA00263) is a dam on the Middle Fork Stanislaus River in Tuolumne County, California.
The site is surrounded by the Stanislaus National Forest.
[1] It impounds the Middle Fork of the Stanislaus River for hydroelectric power and irrigation water storage, part of the Stanislaus River Tri-Dam project cooperatively owned by the Oakdale Irrigation District and South San Joaquin Irrigation District.
[2] The reservoir it creates, Beardsley Lake, has a water surface of 1.1 square miles, a maximum capacity of 97,800 acre-feet (120,600,000 m3), and a normal capacity of 97,500 acre-feet (120,300,000 m3).
[3] Recreation includes camping, fishing, and boating.