Lorence Lake
Key Takeaway
Lorence Lake is classified as significant hazard in Oregon. It was completed in 1959 and is 67 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 25 ft (taller than 43.9% in OR) |
| Dam Length | 230 ft |
| Dam Type | Earth |
| Max Storage | 160 acre-ft |
| Normal Storage | 82 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 510 cfs |
| Year Completed | 1959 (67 years old) |
| NID ID | OR00384 |
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
GREG & KARA PILCHER
Private
Nearby Dams
Funrue
Marion, OR
Significant Hazard 29 ftBarnes Bros. Reservoir
Marion, OR
Significant Hazard 32 ftSilver Creek
Marion, OR
High Hazard 65 ftS-M-S No. 1
Marion, OR
Low Hazard 30 ftPeterson, Floyd
Marion, OR
Significant Hazard 27 ftFox Reservoir
Marion, OR
Low Hazard 25 ftPettit Reservoir
Marion, OR
Significant Hazard 24 ftStadeli
Marion, OR
Low Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Lorence Lake?
Lorence Lake 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 Lorence Lake?
Lorence Lake is owned by GREG & KARA PILCHER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lorence Lake built?
Lorence Lake was completed in 1959, making it 67 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 Lorence Lake?
Lorence Lake serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lorence Lake?
Lorence Lake has a dam height of 25 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 Lorence Lake last inspected?
Lorence Lake was last inspected on October 29, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.