4-S Ranch Reclamation Reservoir
California — San Diego County — Artesian Creek
Location
| State | California |
| County | San Diego |
| River | Artesian Creek |
| Coordinates | 33.01470, -117.11300 |
Physical Characteristics
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 1,270 ft |
| NID Storage | 410 acre-ft |
| Max Storage | 410 acre-ft |
| Surface Area | 13 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | April 3, 2025 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 2000 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Public Utility |
| Owner | Olivenhain Municipal Water District |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.