Shaffer
Key Takeaway
Shaffer 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 | 33 ft (taller than 35.9% in CA) |
| Dam Length | 370 ft |
| Dam Type | Earth |
| Max Storage | 111 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1968 (58 years old) |
| NID ID | CA01309 |
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
Shingle Springs Band of Miwok Indians
Private
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What is the hazard classification of Shaffer?
Shaffer 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 Shaffer?
Shaffer is owned by Shingle Springs Band of Miwok Indians (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Shaffer built?
Shaffer 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 Shaffer?
Shaffer serves the following purposes: Water Supply, Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Shaffer?
Shaffer has a dam height of 33 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 Shaffer last inspected?
Shaffer was last inspected on May 10, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.