Beardsley Dam
Dam in Tuolumne County, California · Middle Fork Stanislaus River · forms Beardsley Lake
Height
284 ft
87 m (NID height)
Length
1,000 ft
305 m
Completed
1957
Beardsley Lake today
3,326.27 ft
7 days ▼ 6.40 ft
Normal storage
97,500 acre-ft
Reservoir level measured Oct 23, 2026, 7:45 AM PDT. Full level page →
Facts
- Purposes
- Hydroelectric; Recreation; Flood Risk Reduction
- Dam type
- Earth
- Structural height
- 284 ft
- Owner
- South San Joaquin Irrigation District (Public Utility)
- Maximum storage
- 97,800 acre-ft
- Surface area
- 720 acres
- Hydraulic height
- 276 ft
- Drainage area
- 310 sq mi
- Spillway
- Controlled, 174 ft wide
- Army Corps district
- San Francisco District
- NID ID
- CA00263
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID CA00263 at nid.sec.usace.army.mil. Project website.
Other dams at Beardsley Lake
- Beardsley Afterbay Dam