Merwin Reservoir #2
Key Takeaway
Merwin Reservoir #2 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 | 48 ft (taller than 83.4% in OR) |
| Dam Length | 850 ft |
| Dam Type | Earth |
| Max Storage | 174 acre-ft |
| Normal Storage | 174 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 28 sq mi |
| Max Discharge | 3,000 cfs |
| Year Completed | 1968 (58 years old) |
| NID ID | OR00397 |
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
HAMILTON RANCH
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Merwin Reservoir #2?
Merwin Reservoir #2 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 Merwin Reservoir #2?
Merwin Reservoir #2 is owned by HAMILTON RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Merwin Reservoir #2 built?
Merwin Reservoir #2 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 Merwin Reservoir #2?
Merwin Reservoir #2 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 Merwin Reservoir #2?
Merwin Reservoir #2 has a dam height of 48 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 Merwin Reservoir #2 last inspected?
Merwin Reservoir #2 was last inspected on February 27, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.