Promise Reservoir
Key Takeaway
Promise Reservoir is classified as low hazard in Oregon. It was completed in 1980 and is 46 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 35 ft (taller than 69.6% in OR) |
| Dam Length | 715 ft |
| Dam Type | Earth |
| Max Storage | 200 acre-ft |
| Normal Storage | 160 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 77 cfs |
| Year Completed | 1980 (46 years old) |
| NID ID | OR00675 |
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
LEONARD HENDERSON
Private
Frequently Asked Questions
What is the hazard classification of Promise Reservoir?
Promise 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 Promise Reservoir?
Promise Reservoir is owned by LEONARD HENDERSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Promise Reservoir built?
Promise Reservoir was completed in 1980, making it 46 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 Promise Reservoir?
Promise 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 Promise Reservoir?
Promise Reservoir has a dam height of 35 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 Promise Reservoir last inspected?
Promise Reservoir was last inspected on October 18, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.