Arntz Dam
Key Takeaway
Arntz Dam is classified as low hazard in Oregon. It was completed in 1957 and is 69 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 20 ft (taller than 30% in OR) |
| Dam Length | 1,026 ft |
| Dam Type | Earth |
| Max Storage | 290 acre-ft |
| Normal Storage | 290 acre-ft |
| Surface Area | 37 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 500 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | OR00318 |
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
STACEY & SHARON JOHNSON/ALAN&DELIGHT JOHNSON
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Arntz Dam?
Arntz 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 Arntz Dam?
Arntz Dam is owned by STACEY & SHARON JOHNSON/ALAN&DELIGHT JOHNSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Arntz Dam built?
Arntz Dam was completed in 1957, making it 69 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 Arntz Dam?
Arntz 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 Arntz Dam?
Arntz 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 Arntz Dam last inspected?
Arntz Dam was last inspected on July 6, 2009. Inspection dates indicate when a formal review occurred, not the results of that inspection.