Pons Lake Reservoir
Key Takeaway
Pons Lake Reservoir is classified as low hazard in Oregon. It was completed in 1968 and is 58 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 20 ft (taller than 30% in OR) |
| Dam Length | 750 ft |
| Dam Type | Earth |
| Max Storage | 785 acre-ft |
| Normal Storage | 785 acre-ft |
| Surface Area | 136 acres |
| Drainage Area | 17 sq mi |
| Max Discharge | 225 cfs |
| Year Completed | 1968 (58 years old) |
| NID ID | OR00445 |
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
SILVIES VALLY RANCH
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Pons Lake Reservoir?
Pons Lake Reservoir 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 Pons Lake Reservoir?
Pons Lake Reservoir is owned by SILVIES VALLY RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pons Lake Reservoir built?
Pons Lake Reservoir 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 Pons Lake Reservoir?
Pons Lake Reservoir 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 Pons Lake Reservoir?
Pons Lake Reservoir 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 Pons Lake Reservoir last inspected?
Pons Lake Reservoir was last inspected on October 11, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.