Pitt Lake Dam
Key Takeaway
Pitt Lake Dam is classified as low hazard in Oregon. It was completed in 1920 and is 106 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 11 ft (taller than 5.4% in OR) |
| Dam Length | 310 ft |
| Dam Type | Earth |
| Max Storage | 122 acre-ft |
| Normal Storage | 122 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 118 cfs |
| Year Completed | 1920 (106 years old) |
| NID ID | OR00533 |
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
EDWARD GARRETT
Private
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Low Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Pitt Lake Dam?
Pitt Lake 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 Pitt Lake Dam?
Pitt Lake Dam is owned by EDWARD GARRETT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pitt Lake Dam built?
Pitt Lake Dam was completed in 1920, making it 106 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 Pitt Lake Dam?
Pitt Lake 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 Pitt Lake Dam?
Pitt Lake Dam has a dam height of 11 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.