Nonquit Pond Reservoir Report
Last Updated: December 17, 2025
Nonquit Pond, located in Tiverton, Rhode Island, is a crucial water supply reservoir with a primary purpose of providing water to the local community.
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Summary
Built in 1943, this rockfill dam stands at a height of 8 feet and spans a length of 200 feet, creating a surface area of 178 acres and a maximum storage capacity of 1950 acre-feet. The dam is state-regulated and inspected regularly to ensure its structural integrity and compliance with safety standards.
With a significant hazard potential, Nonquit Pond plays a key role in managing water resources in the Newport County area. The dam has a spillway width of 93 feet and a maximum discharge capacity of 1826 cubic feet per second. Despite its critical importance as a water supply source, the condition assessment of the dam remains unrated, highlighting the need for continued monitoring and maintenance to ensure the safety and reliability of this essential infrastructure.
Nonquit Pond serves as a vital component of the local water supply infrastructure, contributing to the resilience of the community in the face of changing climate conditions. As a state-regulated and inspected facility, the dam plays a crucial role in water resource management and emergency preparedness efforts. With its significant hazard potential, continued attention and investment in the maintenance and monitoring of Nonquit Pond are essential to safeguarding the water supply and ensuring the safety of the surrounding communities for years to come.
Year Completed |
1943 |
Dam Length |
200 |
Dam Height |
8 |
River Or Stream |
BORDEN BROOK |
Primary Dam Type |
Rockfill |
Surface Area |
178 |
Hydraulic Height |
7 |
Drainage Area |
6 |
Nid Storage |
1950 |
Structural Height |
8 |
Hazard Potential |
Significant |
Nid Height |
8 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Nonquit Pond
Fogland