Lewis, Alfred Dam
Key Takeaway
Lewis, Alfred Dam is classified as low hazard in Oregon. It was completed in 1967 and is 59 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 20 ft (taller than 30% in OR) |
| Dam Length | 755 ft |
| Dam Type | Earth |
| Max Storage | 100 acre-ft |
| Normal Storage | 48 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 131 cfs |
| Year Completed | 1967 (59 years old) |
| NID ID | OR00938 |
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
LEWIS FARMS, INC.
Private
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Lewis, Alfred Dam?
Lewis, Alfred Dam 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 Lewis, Alfred Dam?
Lewis, Alfred Dam is owned by LEWIS FARMS, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lewis, Alfred Dam built?
Lewis, Alfred Dam was completed in 1967, making it 59 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 Lewis, Alfred Dam?
Lewis, Alfred Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lewis, Alfred Dam?
Lewis, Alfred Dam has a dam height of 20 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 Lewis, Alfred Dam last inspected?
Lewis, Alfred Dam was last inspected on November 4, 2010. Inspection dates indicate when a formal review occurred, not the results of that inspection.