Gulf Island
Key Takeaway
Gulf Island is classified as high hazard in Maine. It was completed in 1926 and is 100 years old. Its primary use is hydroelectric. 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 Height | 99 ft (taller than 99.5% in ME) |
| Dam Length | 2,488 ft |
| Dam Type | Concrete |
| Max Storage | 55.1K acre-ft |
| Normal Storage | 55.1K acre-ft |
| Surface Area | 2,862 acres |
| Drainage Area | 2,860 sq mi |
| Max Discharge | 201,000 cfs |
| Year Completed | 1926 (100 years old) |
| NID ID | ME00007 |
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
Not Listed
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Low Hazard 7 ftFrequently Asked Questions
What is the hazard classification of Gulf Island?
Gulf Island 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 Gulf Island?
Gulf Island is owned by information not available (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Gulf Island built?
Gulf Island was completed in 1926, making it 100 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 Gulf Island?
Gulf Island serves the following purposes: Hydroelectric, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Gulf Island?
Gulf Island has a dam height of 99 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 Gulf Island last inspected?
Gulf Island was last inspected on July 22, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.