Mammoth Pool
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | California |
| County | Madera |
| Nearest City | Big Creek |
| River/Stream | San Joaquin River |
| Coordinates | 37.32310, -119.31720 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 411 ft |
| Dam Height | 411 ft |
| Dam Length | 820 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 122,175 acre-ft |
| Max Storage | 122,175 acre-ft |
| Normal Storage | 120,000 acre-ft |
| Surface Area | 1,100 acres |
| Drainage Area | 995 sq mi |
| Max Discharge | 235,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Southern California Edison Company |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/29/2023 |
| Emergency Action Plan | Yes |