Middle Pond Dam #2 Reservoir Report
Nearby: Middle Pond Dam #1 Middle Pond Dam #3
Last Updated: December 20, 2025
Middle Pond Dam #2, located in Bristol County, Massachusetts, is a state-regulated earth dam with a primary purpose of serving as a Fish and Wildlife Pond.
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Summary
The dam is situated on Thompson Brook, with a capacity to hold 380 acre-feet of water and covering a surface area of 28.5 acres. Despite its importance for wildlife conservation and recreational purposes, the dam is rated as being in poor condition with a significant hazard potential. It has not been inspected since February 2018 and is considered to have a high risk level, indicating the need for urgent attention and maintenance.
Managed by the Department of Conservation and Recreation, Middle Pond Dam #2 plays a crucial role in supporting the local ecosystem and providing recreational opportunities. However, with a structural height of 16.2 feet and a hydraulic height of 14 feet, the dam's deteriorating condition raises concerns about its ability to withstand potential flooding events. The lack of a spillway and the poor condition assessment further emphasize the need for immediate risk management measures to ensure the safety of the surrounding areas and the preservation of the dam's ecological functions.
Water resource and climate enthusiasts should take note of Middle Pond Dam #2 as a critical infrastructure that requires prompt evaluation and maintenance to prevent potential risks and ensure the continued protection of fish and wildlife habitats. With a high hazard potential and a poor condition assessment, the dam underscores the importance of proactive monitoring and management strategies to mitigate the risks associated with its structural integrity and safeguard the surrounding environment.
Dam Length |
230 |
Dam Height |
16.2 |
River Or Stream |
THOMPSON BROOK |
Primary Dam Type |
Earth |
Surface Area |
28.5 |
Hydraulic Height |
14 |
Drainage Area |
1.47 |
Nid Storage |
380 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
16 |
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.
Middle Pond Dam #2