Greenhorn
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | Siskiyou |
| Nearest City | Yreka |
| River/Stream | Greenhorn Creek |
| Coordinates | 41.70930, -122.65170 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 1,300 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 251 acre-ft |
| Max Storage | 251 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 12 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Yreka |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/22/2025 |
| Emergency Action Plan | Yes |