Tualatin Park
Key Takeaway
Tualatin Park is classified as significant hazard in Oregon. It was completed in 1970 and is 56 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 22 ft (taller than 36.2% in OR) |
| Dam Length | 300 ft |
| Dam Type | Earth |
| Max Storage | 28 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 111 cfs |
| Year Completed | 1970 (56 years old) |
| NID ID | OR03317 |
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
TRI COUNTY INDUSTRIAL PARKS
Private
Nearby Dams
Tualatin Refuge
Washington, OR
Low Hazard 14 ftRogers - Joseph Reservoir
Clackamas, OR
Significant Hazard 31 ftOswego Lake Dam
Clackamas, OR
Significant Hazard 32 ftHershiser Reservoir
Clackamas, OR
Low Hazard 42 ftCrown Zellerbach (Lagoon)
Clackamas, OR
Low Hazard 15 ftWillamette Falls Locks
Clackamas, OR
High HazardMidway Nursery
Washington, OR
Low Hazard 31 ftEttinger Pond
Washington, OR
Significant Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Tualatin Park?
Tualatin Park 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 Tualatin Park?
Tualatin Park is owned by TRI COUNTY INDUSTRIAL PARKS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Tualatin Park built?
Tualatin Park was completed in 1970, making it 56 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 Tualatin Park?
Tualatin Park serves the following purposes: Irrigation, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Tualatin Park?
Tualatin Park has a dam height of 22 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 Tualatin Park last inspected?
Tualatin Park was last inspected on November 15, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.