Crater Lake
Key Takeaway
Crater Lake is classified as low hazard in Oregon. It was completed in 1964 and is 62 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 31 ft (taller than 62.3% in OR) |
| Dam Length | 120 ft |
| Dam Type | Earth |
| Max Storage | 230 acre-ft |
| Normal Storage | 190 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 575 cfs |
| Year Completed | 1964 (62 years old) |
| NID ID | OR00393 |
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
WEST EAGLE VALLEY WATER CONTROL DISTRICT
Private
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Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Crater Lake?
Crater Lake 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 Crater Lake?
Crater Lake is owned by WEST EAGLE VALLEY WATER CONTROL DISTRICT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Crater Lake built?
Crater Lake was completed in 1964, making it 62 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 Crater Lake?
Crater Lake 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 Crater Lake?
Crater Lake has a dam height of 31 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 Crater Lake last inspected?
Crater Lake was last inspected on August 16, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.