Channel Diversion Dike
Channel Diversion Dike is an earth dam located in Los Angeles County, California, built in 1940. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Channel Diversion Dike
The primary purpose of Channel Diversion Dike is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by City Of Los Angeles Department Of Water And Power (local government). It impounds the Storm Dr Channel.
The dam stands 42 feet tall and stretches 390 feet across, creates a reservoir covering 28 acres, has a maximum storage capacity of 437 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1940, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 11/03/2025.
At 42 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | California |
| County | Los Angeles |
| River/Stream | Storm Dr Channel |
| Coordinates | 34.29430, -118.48860 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 390 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 437 acre-ft |
| Max Storage | 437 acre-ft |
| Surface Area | 28 acres |
| Drainage Area | 6 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | City of Los Angeles Department of Water and Power |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/03/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00093 |
| Federal ID | CA00093 |
| More Info | State Dam Safety Program |