Yarnell Debris Basin
California — Los Angeles County — Tr Bull Canyon
Location
| State | California |
| County | Los Angeles |
| River | Tr Bull Canyon |
| Coordinates | 34.30550, -118.48630 |
Physical Characteristics
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 1,290 ft |
| NID Storage | 78 acre-ft |
| Max Storage | 78 acre-ft |
| Surface Area | 10 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Satisfactory |
| EAP Status | No |
| Last Inspection | November 17, 2025 |
| Inspection Frequency | 0.5 |
Dam Information
| Year Completed | 1963 |
| Primary Purpose | Debris Control |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | City of Los Angeles Department of Water and Power |
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.