Mansfield Recreation Pond Reservoir Report

Last Updated: December 6, 2025

Mansfield Recreation Pond, also known as Bicentennial Pond, is a local government-owned recreational water resource located in Mansfield, Connecticut.


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Summary

Managed by the USDA NRCS, this concrete dam structure on Schoolhouse Brook was completed in 1974 and serves as a popular spot for outdoor activities and leisure. With a dam height of 25 feet and a surface area of 6 acres, the pond offers a serene escape for residents and visitors alike.

The dam's primary purpose is recreation, providing a storage capacity of 67 acre-feet and a drainage area of 0.73 square miles. Despite being categorized as having a significant hazard potential, its condition assessment remains satisfactory as of the last inspection in October 2019. With uncontrolled spillways and outlet gates, the pond offers a moderate risk level for emergencies, with a designated emergency action plan and updated contact information to ensure the safety of those enjoying the recreational amenities it provides.

For water resource and climate enthusiasts, Mansfield Recreation Pond stands as a vital ecological and recreational asset within the Tolland County landscape. Its role in providing outdoor recreational opportunities, water storage capacity, and environmental benefits make it a valuable resource worth preserving and enjoying for generations to come. As a regulated and inspected water feature under the jurisdiction of the Connecticut Department of Energy and Environmental Protection, Mansfield Recreation Pond exemplifies the intersection of human-made infrastructure and natural beauty in harmony with the surrounding ecosystem.

Year Completed

1974

Dam Length

430

Dam Height

25

River Or Stream

SCHOOLHOUSE BROOK

Primary Dam Type

Concrete

Surface Area

6

Drainage Area

0.73

Nid Storage

67

Outlet Gates

Uncontrolled

Hazard Potential

Significant

Foundations

Soil

Nid Height

25
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.
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Area Campgrounds