Lymansville Reservoir Report
Nearby: Manton Mill Pond Caesarville Pond
Last Updated: December 19, 2025
Lymansville is a privately-owned dam located in North Providence, Rhode Island, along the Woonasquatucket River.
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Summary
Built in 1925, this rockfill dam stands at a height of 13 feet and has a storage capacity of 167 acre-feet. With a surface area of 25 acres and a drainage area of 45 square miles, Lymansville plays a crucial role in flood control and water management in the area.
Despite its significant role in water resource management, Lymansville is currently in poor condition and has a low hazard potential. The dam's condition was assessed as poor in May 2018, raising concerns about its structural integrity and long-term sustainability. With an inspection frequency of 0 and no emergency action plan in place, there is a need for immediate attention and maintenance to ensure the safety and functionality of this important water infrastructure.
Given its historical significance and vital role in managing water resources along the Woonasquatucket River, Lymansville warrants closer monitoring and potential rehabilitation efforts. Addressing the poor condition assessment and implementing a comprehensive maintenance plan will be crucial in safeguarding the surrounding communities from potential risks and ensuring the continued effectiveness of this essential water infrastructure.
Year Completed |
1925 |
Dam Length |
500 |
Dam Height |
13 |
River Or Stream |
WOONASQUATUCKET RIVER |
Primary Dam Type |
Rockfill |
Surface Area |
25 |
Hydraulic Height |
10 |
Drainage Area |
45 |
Nid Storage |
167 |
Structural Height |
14 |
Hazard Potential |
Low |
Nid Height |
14 |
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.
Lymansville
Lincoln Woods