Phoenix
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | Tuolumne |
| Nearest City | Sonora |
| River/Stream | Sullivan Creek |
| Coordinates | 37.99980, -120.32730 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 52 ft |
| Dam Height | 52 ft |
| Dam Length | 795 ft |
| Year Completed | 1880 (146 years old) |
Storage & Hydraulics
| NID Storage | 455 acre-ft |
| Max Storage | 455 acre-ft |
| Surface Area | 76 acres |
| Drainage Area | 24 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Tuolumne Utilities District |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/16/2025 |
| Emergency Action Plan | Yes |