Edgar M. Hoopes Dam
Key Takeaway
Edgar M. Hoopes Dam is classified as high hazard in Delaware. It was completed in 1932 and is 94 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Length | 840 ft |
| Dam Type | Concrete |
| Max Storage | 9.1K acre-ft |
| Normal Storage | 6.6K acre-ft |
| Surface Area | 201 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,668 cfs |
| Year Completed | 1932 (94 years old) |
| NID ID | DE00015 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CITY OF WILMINGTON
Local Government
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Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Edgar M. Hoopes Dam?
Edgar M. Hoopes Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Edgar M. Hoopes Dam?
Edgar M. Hoopes Dam is owned by CITY OF WILMINGTON (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Edgar M. Hoopes Dam built?
Edgar M. Hoopes Dam was completed in 1932, making it 94 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 Edgar M. Hoopes Dam?
Edgar M. Hoopes Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Edgar M. Hoopes Dam last inspected?
Edgar M. Hoopes Dam was last inspected on September 9, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.