Rock Lake
Key Takeaway
Rock Lake is classified as low hazard in Oregon. It was completed in 1928 and is 98 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 28 ft (taller than 54.8% in OR) |
| Dam Length | 160 ft |
| Dam Type | Earth |
| Max Storage | 500 acre-ft |
| Normal Storage | 452 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 108 cfs |
| Year Completed | 1928 (98 years old) |
| NID ID | OR00088 |
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
GERALD MAXWELL
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Rock Lake?
Rock 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 Rock Lake?
Rock Lake is owned by GERALD MAXWELL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rock Lake built?
Rock Lake was completed in 1928, making it 98 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 Rock Lake?
Rock 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 Rock Lake?
Rock Lake has a dam height of 28 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 Rock Lake last inspected?
Rock Lake was last inspected on September 27, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.