Beardsley Afterbay
California — Tuolumne County — Middle Fork Stanislaus River
Location
| State | California |
| County | Tuolumne |
| River | Middle Fork Stanislaus River |
| Coordinates | 38.19615, -120.09026 |
Physical Characteristics
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 240 ft |
| NID Storage | 355 acre-ft |
| Max Storage | 355 acre-ft |
| Surface Area | 26 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Satisfactory |
| EAP Status | Not Required |
| Last Inspection | July 25, 2023 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1958 |
| Primary Purpose | Hydroelectric |
| Dam Type | Rockfill |
| Owner Type | Public Utility |
| Owner | South San Joaquin Irrigation District |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.