Twin Lake
Low HazardSatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | California |
| County | Alpine |
| Nearest City | Kirkwood |
| River/Stream | North Fork Mokelumne River-tr |
| Coordinates | 38.60890, -119.94452 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 1,520 ft |
| Year Completed | 1903 (123 years old) |
Storage & Hydraulics
| NID Storage | 21,581 acre-ft |
| Max Storage | 21,581 acre-ft |
| Normal Storage | 1,210 acre-ft |
| Surface Area | 600 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 12,400 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Pacific Gas and Electric Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/07/2022 |
| Emergency Action Plan | Not Required |