Morse Lake Overflow Dike
Key Takeaway
Morse Lake Overflow Dike is classified as low hazard in Washington. It was completed in 1904 and is 122 years old. Its primary use is water supply.
Physical Details
| Dam Length | 440 ft |
| Dam Type | Gravity |
| Max Storage | 75.0K acre-ft |
| Normal Storage | 75.0K acre-ft |
| Surface Area | 1,682 acres |
| Drainage Area | 81 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1904 (122 years old) |
| NID ID | WA00256 |
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
Seattle City Light
Local Government
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High HazardFrequently Asked Questions
What is the hazard classification of Morse Lake Overflow Dike?
Morse Lake Overflow Dike 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 Morse Lake Overflow Dike?
Morse Lake Overflow Dike is owned by Seattle City Light (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Morse Lake Overflow Dike built?
Morse Lake Overflow Dike was completed in 1904, making it 122 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 Morse Lake Overflow Dike?
Morse Lake Overflow Dike serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.