Alton Pond
Key Takeaway
Alton Pond is classified as significant hazard in Rhode Island. It was completed in 1920 and is 106 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 19 ft (taller than 78.8% in RI) |
| Dam Length | 550 ft |
| Max Storage | 424 acre-ft |
| Normal Storage | 318 acre-ft |
| Surface Area | 53 acres |
| Drainage Area | 87 sq mi |
| Max Discharge | 5,630 cfs |
| Year Completed | 1920 (106 years old) |
| NID ID | RI01407 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
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 11 ftFrequently Asked Questions
What is the hazard classification of Alton Pond?
Alton Pond is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Alton Pond?
Alton Pond is owned by information not available (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Alton Pond built?
Alton Pond was completed in 1920, making it 106 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 Alton Pond?
Alton Pond serves the following purposes: Other, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Alton Pond?
Alton Pond has a dam height of 19 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 Alton Pond last inspected?
Alton Pond was last inspected on April 24, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.