Mark Edson
Key Takeaway
Mark Edson is classified as high hazard in California. It was completed in 1962 and is 64 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 162 ft (taller than 91.4% in CA) |
| Dam Length | 1,230 ft |
| Dam Type | Earth |
| Max Storage | 20.0K acre-ft |
| Surface Area | 330 acres |
| Drainage Area | 16 sq mi |
| Year Completed | 1962 (64 years old) |
| NID ID | CA00607 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Georgetown Divide Public Utility District
Public Utility
Nearby Dams
Brush Creek
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High Hazard 91 ftJunction
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Significant Hazard 168 ftSlab Creek
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High Hazard 250 ftUnion Valley
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High Hazard 440 ftFrequently Asked Questions
What is the hazard classification of Mark Edson?
Mark Edson is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Mark Edson?
Mark Edson is owned by Georgetown Divide Public Utility District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mark Edson built?
Mark Edson was completed in 1962, making it 64 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 Mark Edson?
Mark Edson serves the following purposes: Water Supply, Tailings, Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mark Edson?
Mark Edson has a dam height of 162 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 Mark Edson last inspected?
Mark Edson was last inspected on June 8, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.