Yarnell Debris Basin
Low HazardSatisfactory ConditionEmergency Action Plan: No
Location
| County | Los Angeles |
| River/Stream | Tr Bull Canyon |
| Coordinates | 34.30550, -118.48630 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 1,290 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 77 acre-ft |
| Max Storage | 77 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Debris Control |
| Owner | City of Los Angeles Department of Water and Power |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/17/2025 |
| Emergency Action Plan | No |