Diemer No. 8
Key Takeaway
Diemer No. 8 is classified as significant hazard in California. It was completed in 1968 and is 58 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 172 ft (taller than 92.7% in CA) |
| Dam Length | 1,004 ft |
| Dam Type | Other |
| Max Storage | 18 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1968 (58 years old) |
| NID ID | CA00220 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Metropolitan Water District Of Southern California
Public Utility
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High Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Diemer No. 8?
Diemer No. 8 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Diemer No. 8?
Diemer No. 8 is owned by Metropolitan Water District Of Southern California (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Diemer No. 8 built?
Diemer No. 8 was completed in 1968, making it 58 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Diemer No. 8?
Diemer No. 8 serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Diemer No. 8?
Diemer No. 8 has a dam height of 172 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Diemer No. 8 last inspected?
Diemer No. 8 was last inspected on August 17, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.