Hansen Dam
Key Takeaway
Hansen Dam is classified as low hazard in Washington. It was completed in 1962 and is 64 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Length | 410 ft |
| Dam Type | Earth |
| Max Storage | 56 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 12 sq mi |
| Max Discharge | 725 cfs |
| Year Completed | 1962 (64 years old) |
| NID ID | WA00016 |
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
Adam J & JenniferSapier
Private
Frequently Asked Questions
What is the hazard classification of Hansen Dam?
Hansen 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 Hansen Dam?
Hansen Dam is owned by Adam J & JenniferSapier (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hansen Dam built?
Hansen Dam was completed in 1962, making it 64 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 Hansen Dam?
Hansen Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.