Galivan Retarding Basin
California — Orange County — Oso Creek
Location
| State | California |
| County | Orange |
| River | Oso Creek |
| Coordinates | 33.56320, -117.67620 |
Physical Characteristics
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 600 ft |
| NID Storage | 169 acre-ft |
| Max Storage | 169 acre-ft |
| Surface Area | 17 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Satisfactory |
| EAP Status | No |
| Last Inspection | September 23, 2025 |
| Inspection Frequency | 0.5 |
Dam Information
| Year Completed | 2000 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | County of Orange |
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.