Jamestown Lower Reservoir
Key Takeaway
Jamestown Lower Reservoir is classified as significant hazard in Rhode Island. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 49.1% in RI) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 24 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 225 cfs |
| NID ID | RI04214 |
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
JAMESTOWN, TOWN OF
Local Government
Nearby Dams
Jamestown Reservoir
Newport, RI
Significant Hazard 9 ftCarr Pond
Washington, RI
High Hazard 9 ftWertz + Viall Pond
Washington, RI
Low Hazard 6 ftHamilton Reservoir
Washington, RI
Significant Hazard 10 ftShady Lea Mill
Washington, RI
High HazardSilver Spring Lake
Washington, RI
High Hazard 12 ftEaston Pond North
Newport, RI
High Hazard 14 ftEaston Pond South
Newport, RI
High Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Jamestown Lower Reservoir?
Jamestown Lower 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 Jamestown Lower Reservoir?
Jamestown Lower Reservoir is owned by JAMESTOWN, TOWN OF (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Jamestown Lower Reservoir?
Jamestown Lower Reservoir serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Jamestown Lower Reservoir?
Jamestown Lower Reservoir has a dam height of 12 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 Jamestown Lower Reservoir last inspected?
Jamestown Lower Reservoir was last inspected on August 7, 2012. Inspection dates indicate when a formal review occurred, not the results of that inspection.