L. L. Anderson
Key Takeaway
L. L. Anderson is classified as high hazard in California. It was completed in 1965 and is 61 years old. Its primary use is irrigation. 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 | 231 ft (taller than 96.4% in CA) |
| Dam Length | 2,700 ft |
| Dam Type | Earth |
| Max Storage | 134.0K acre-ft |
| Normal Storage | 134.0K acre-ft |
| Surface Area | 1,430 acres |
| Drainage Area | 47 sq mi |
| Max Discharge | 16,200 cfs |
| Year Completed | 1965 (61 years old) |
| NID ID | CA00856 |
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
Placer County Water Agency
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of L. L. Anderson?
L. L. Anderson 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 L. L. Anderson?
L. L. Anderson is owned by Placer County Water Agency (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was L. L. Anderson built?
L. L. Anderson was completed in 1965, making it 61 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 L. L. Anderson?
L. L. Anderson serves the following purposes: Irrigation, Recreation, Hydroelectric, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is L. L. Anderson?
L. L. Anderson has a dam height of 231 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 L. L. Anderson last inspected?
L. L. Anderson was last inspected on August 22, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.