Island Pond Dam Reservoir Report
Nearby: Indian Brook Dam Russell Mill Pond
Last Updated: December 20, 2025
Island Pond Dam in Plymouth, Massachusetts, is a locally owned structure primarily used for recreational purposes.
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Summary
The dam, with a height of 10 feet and a storage capacity of 500 acre-feet, is regulated by the Department of Conservation and Recreation. Its low hazard potential and poor condition assessment indicate a need for maintenance and potential improvements to ensure safety and functionality for the surrounding community.
Despite its poor condition, Island Pond Dam presents a moderate risk level, prompting the need for risk assessment and management measures to mitigate potential hazards. With a drainage area of 0.5 square miles and a surface area of 80 acres, the dam plays a crucial role in water resource management and recreational activities in the area. Climate enthusiasts and water resource experts may find interest in the dam's design features, including its earth construction and uncontrolled spillway type.
Given its location in a picturesque region of Plymouth, Massachusetts, Island Pond Dam serves as a valuable asset for both recreation and water resource management. As stakeholders work towards addressing its maintenance needs and risk management strategies, the dam remains a focal point for local government oversight and potential improvements to enhance its safety and functionality for years to come.
Dam Height |
10 |
Primary Dam Type |
Earth |
Surface Area |
80 |
Hydraulic Height |
1 |
Drainage Area |
0.5 |
Nid Storage |
500 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
10 |
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.
Island Pond Dam