Upper Blue Lake
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | California |
| County | Alpine |
| Nearest City | Kirkwood |
| River/Stream | Blue Creek |
| Coordinates | 38.62813, -119.94060 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 21 ft |
| Dam Length | 786 ft |
| Year Completed | 1901 (125 years old) |
Storage & Hydraulics
| NID Storage | 7,300 acre-ft |
| Max Storage | 7,300 acre-ft |
| Normal Storage | 6,759 acre-ft |
| Surface Area | 333 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,400 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Pacific Gas and Electric Company |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/19/2025 |
| Emergency Action Plan | Yes |