Wetherell Pond Dam Reservoir Report
Nearby: Whiting Pond Dam George St. Pond Dam
Last Updated: December 13, 2025
Wetherell Pond Dam, located in Plainville, Massachusetts, is a gravity dam on the Ten Mile River that serves primarily for recreational purposes.
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Summary
With a height of 7 feet and a hydraulic height of 4 feet, the dam has a storage capacity of 65 acre-feet and covers a surface area of 0.02 acres. The dam is under the jurisdiction of the Department of Conservation and Recreation in Massachusetts and is regulated by state agencies for permitting, inspection, and enforcement.
Despite its low hazard potential, the condition assessment of Wetherell Pond Dam is currently unsatisfactory, with the last inspection taking place in May 2009. The dam has a moderate risk rating, necessitating the need for risk management measures to be put in place. While the dam has not been modified in recent years and does not have an Emergency Action Plan (EAP) prepared, it is essential for authorities to address the condition of the dam to ensure its safety and functionality for the surrounding community and wildlife.
With its unique location along the Ten Mile River and its importance for recreational activities, the Wetherell Pond Dam serves as a vital structure in the region. As climate change continues to impact water resources and infrastructure, it is crucial for stakeholders to prioritize the maintenance and assessment of dams like Wetherell Pond to mitigate potential risks and ensure the sustainable management of water resources in the area.
Dam Length |
150 |
Dam Height |
7 |
River Or Stream |
TEN MILE RIVER |
Primary Dam Type |
Gravity |
Surface Area |
0.02 |
Hydraulic Height |
4 |
Drainage Area |
3.53 |
Nid Storage |
65 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
7 |
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.
Wetherell Pond Dam
Falls Pond