Mansfield Training Dam #2 Reservoir Report
Last Updated: December 6, 2025
Mansfield Training Dam #2, located in Mansfield, Connecticut, was completed in 1968 and serves primarily for recreational purposes.
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Summary
The dam is classified as an Earth type structure, standing at a height of 12 feet and stretching 350 feet in length. With a surface area of 2.2 acres and a drainage area of 0.27 square miles, the dam provides essential water storage and flood control measures for the surrounding area.
Despite being assessed as in fair condition during the last inspection in 2016, Mansfield Training Dam #2 has been deemed to have significant hazard potential. The dam features an uncontrolled spillway with a width of 14 feet and has a moderate risk assessment rating. While there are no associated locks or outlet gates, the dam's emergency action plan status and risk management measures remain unreported. With the dam falling under state regulation and inspection, it is crucial to ensure continued maintenance and monitoring to prevent any potential hazards or risks.
For water resource and climate enthusiasts, Mansfield Training Dam #2 offers a unique opportunity to explore the intersection of water management and recreational activities. As part of the New England District, the dam contributes to the local ecosystem by providing water storage and flood control capabilities. With its location in a picturesque setting in Tolland County, the dam serves as a reminder of the importance of sustainable water resource management and the need for proactive risk assessment and mitigation strategies to safeguard the community and environment.
Year Completed |
1968 |
Dam Length |
350 |
Dam Height |
12 |
River Or Stream |
UNNAMED |
Primary Dam Type |
Earth |
Surface Area |
2.2 |
Drainage Area |
0.27 |
Hazard Potential |
Significant |
Nid Height |
12 |
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.
Mansfield Training Dam #2
Coventry Lake
Indian Notch Park
Mansfield Outdoor Athletic Complex
Valley Falls Park
Whittemore Park
Town Owned Herrick Park