Sierra Madre
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | Los Angeles |
| Nearest City | Sierra Madre |
| River/Stream | L Santa Anita Cr |
| Coordinates | 34.17620, -118.04300 |
Physical Characteristics
| Dam Type | Arch |
| NID Height | 69 ft |
| Dam Height | 69 ft |
| Dam Length | 200 ft |
| Year Completed | 1928 (98 years old) |
Storage & Hydraulics
| NID Storage | 51 acre-ft |
| Max Storage | 51 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Los Angeles County Department Of Public Works |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/14/2025 |
| Emergency Action Plan | Yes |