Glen Rock Reservoir
Key Takeaway
Glen Rock Reservoir is classified as significant hazard in Rhode Island. It was completed in 1860 and is 166 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 7 ft (taller than 8.1% in RI) |
| Dam Length | 300 ft |
| Dam Type | Rockfill |
| Max Storage | 125 acre-ft |
| Normal Storage | 110 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 33 sq mi |
| Max Discharge | 371 cfs |
| Year Completed | 1860 (166 years old) |
| NID ID | RI03203 |
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
PAUL E.T. DRUMM III
Private
Nearby Dams
Metcalf Wildlife Marsh
Washington, RI
High Hazard 11 ftGreat Swamp Goose Marsh
Washington, RI
Low Hazard 8 ftHorseshoe Falls
Washington, RI
Significant Hazard 13 ftWhite's Pond
Washington, RI
High Hazard 8 ftDolly Pond
Washington, RI
Low Hazard 9 ftCarolina Pond
Washington, RI
Low Hazard 10 ftJames Pond
Washington, RI
Low Hazard 9 ftYorker Mill Pond
Washington, RI
High Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Glen Rock Reservoir?
Glen Rock Reservoir 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 Glen Rock Reservoir?
Glen Rock Reservoir is owned by PAUL E.T. DRUMM III (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Glen Rock Reservoir built?
Glen Rock Reservoir was completed in 1860, making it 166 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 Glen Rock Reservoir?
Glen Rock Reservoir 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 Glen Rock Reservoir?
Glen Rock Reservoir 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.
When was Glen Rock Reservoir last inspected?
Glen Rock Reservoir was last inspected on August 14, 2013. Inspection dates indicate when a formal review occurred, not the results of that inspection.