I405 Coal Creek Stormwater Detention Da
Key Takeaway
I405 Coal Creek Stormwater Detention Da is classified as low hazard in Washington. It was completed in 1987 and is 39 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Type | Earth |
| Max Storage | 40 acre-ft |
| Normal Storage | 1 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,000 cfs |
| Year Completed | 1987 (39 years old) |
| NID ID | WA01647 |
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
Bellevue City Utilities Dept
Local Government
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High HazardFrequently Asked Questions
What is the hazard classification of I405 Coal Creek Stormwater Detention Da?
I405 Coal Creek Stormwater Detention Da 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 I405 Coal Creek Stormwater Detention Da?
I405 Coal Creek Stormwater Detention Da is owned by Bellevue City Utilities Dept (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was I405 Coal Creek Stormwater Detention Da built?
I405 Coal Creek Stormwater Detention Da was completed in 1987, making it 39 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 I405 Coal Creek Stormwater Detention Da?
I405 Coal Creek Stormwater Detention Da 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.
When was I405 Coal Creek Stormwater Detention Da last inspected?
I405 Coal Creek Stormwater Detention Da was last inspected on August 25, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.