Pettit Reservoir
Key Takeaway
Pettit Reservoir is classified as significant hazard in Oregon. It was completed in 1963 and is 63 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 24 ft (taller than 42.5% in OR) |
| Dam Length | 850 ft |
| Dam Type | Earth |
| Max Storage | 290 acre-ft |
| Normal Storage | 223 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,030 cfs |
| Year Completed | 1963 (63 years old) |
| NID ID | OR00396 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
DR. VIRGIL E. PETTIT
Private
Nearby Dams
Stadeli
Marion, OR
Low Hazard 23 ftBarnes Bros. Reservoir
Marion, OR
Significant Hazard 32 ftSilver Falls Log Pond (Marion)
Marion, OR
Low Hazard 14 ftMallories Dairy Lagoon #2
Marion, OR
Low Hazard 22 ftMallories Lagoon #1
Marion, OR
Low Hazard 13 ftLorence Lake
Marion, OR
Significant Hazard 25 ftSilver Creek
Marion, OR
High Hazard 65 ftPeterson, Floyd
Marion, OR
Significant Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Pettit Reservoir?
Pettit Reservoir is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Pettit Reservoir?
Pettit Reservoir is owned by DR. VIRGIL E. PETTIT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pettit Reservoir built?
Pettit Reservoir was completed in 1963, making it 63 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 Pettit Reservoir?
Pettit Reservoir serves the following purposes: Other, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Pettit Reservoir?
Pettit Reservoir has a dam height of 24 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 Pettit Reservoir last inspected?
Pettit Reservoir was last inspected on December 2, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.