Greystone
Key Takeaway
Greystone is classified as low hazard in Rhode Island. It was completed in 1865 and is 161 years old.
Physical Details
| Dam Height | 7 ft (taller than 8.1% in RI) |
| Dam Length | 355 ft |
| Dam Type | Rockfill |
| Max Storage | 116 acre-ft |
| Normal Storage | 81 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 39 sq mi |
| Max Discharge | 1,039 cfs |
| Year Completed | 1865 (161 years old) |
| NID ID | RI01604 |
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
WORCESTER COMPANY
Private
Nearby Dams
Allendale Pond
Providence, RI
Low Hazard 15 ftCaesarville Pond
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Significant Hazard 6 ftBelknap Pond
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Significant Hazard 8 ftWenscott Reservoir
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High Hazard 10 ftGeorgiaville Pond
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High Hazard 33 ftLymansville
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Low Hazard 13 ftManton Mill Pond
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Low Hazard 10 ftPocasset Pond
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Significant Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Greystone?
Greystone 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 Greystone?
Greystone is owned by WORCESTER COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Greystone built?
Greystone was completed in 1865, making it 161 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
How tall is Greystone?
Greystone has a dam height of 7 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.