Anderson Cottonwood
Key Takeaway
Anderson Cottonwood is classified as low hazard in California. It was completed in 1917 and is 109 years old. Its primary use is other.
Physical Details
| Dam Height | 24 ft (taller than 22.6% in CA) |
| Dam Length | 455 ft |
| Dam Type | Buttress |
| Max Storage | 1.2K acre-ft |
| Surface Area | 190 acres |
| Drainage Area | 6,860 sq mi |
| Year Completed | 1917 (109 years old) |
| NID ID | CA00226 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Anderson Cottonwood Irrigation District
Public Utility
Nearby Dams
Keswick
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Significant Hazard 30 ftGeorge Reese Reservoir
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Significant Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Anderson Cottonwood?
Anderson Cottonwood is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Anderson Cottonwood?
Anderson Cottonwood is owned by Anderson Cottonwood Irrigation District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Anderson Cottonwood built?
Anderson Cottonwood was completed in 1917, making it 109 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 Anderson Cottonwood?
Anderson Cottonwood serves the following purposes: Other, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Anderson Cottonwood?
Anderson Cottonwood has a dam height of 24 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 Anderson Cottonwood last inspected?
Anderson Cottonwood was last inspected on October 26, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.