Big Rock Res. Dam
Key Takeaway
Big Rock Res. Dam is classified as low hazard in Oregon. It was completed in 1969 and is 57 years old. Its primary use is other.
Physical Details
| Dam Length | 375 ft |
| Dam Type | Gravity |
| Max Storage | 77 acre-ft |
| Normal Storage | 41 acre-ft |
| Surface Area | 44 acres |
| Max Discharge | 3,252 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | OR00568 |
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
DOI BLM
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Big Rock Res. Dam?
Big Rock Res. 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 Big Rock Res. Dam?
Big Rock Res. Dam is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Big Rock Res. Dam built?
Big Rock Res. Dam was completed in 1969, making it 57 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 Big Rock Res. Dam?
Big Rock Res. Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Big Rock Res. Dam last inspected?
Big Rock Res. Dam was last inspected on October 13, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.