Folly Brook Dike Reservoir Report

Last Updated: December 6, 2025

Folly Brook Dike, also known as Hartford Fcs Connecticut River, is a local government-owned structure in Hartford, Connecticut, designed for flood risk reduction along the Connecticut River.


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Summary

This earth dam stands at a height of 10 feet and stretches 650 feet in length, serving as a critical infrastructure to protect the surrounding area from potential flooding events. With the state regulatory agency, DEEP, overseeing its permitting, inspection, and enforcement, the dam is well-maintained to meet its primary purpose of flood risk reduction.

Located at a latitude of 41.729156 and longitude of -72.665648, Folly Brook Dike is strategically positioned to manage water flow and reduce the risk of inundation in the region. Despite being rated as having a high hazard potential, the dam's current condition is not rated, and its emergency action plan status remains undisclosed. The structure's inspection frequency is set at every two years, reflecting a proactive approach to ensuring its effectiveness in safeguarding the community against potential flood events.

As part of the flood risk management measures in place, Folly Brook Dike plays a crucial role in mitigating the impact of extreme weather events on the local area. With its association with the Connecticut River and its critical function in flood risk reduction, water resource and climate enthusiasts can appreciate the importance of this infrastructure in protecting the community and environment from the threats posed by flooding.

Dam Length

650

Dam Height

10

River Or Stream

CONNECTICUT RIVER

Primary Dam Type

Earth

Hazard Potential

High

Nid Height

10
       
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.