Greenburg Dam Reservoir Report

Last Updated: December 6, 2025

Greenburg Dam, also known as Kent Earthen Dam, is a private-owned structure located in Dutchess, New York.


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Summary

Completed in 1965, this earth-type dam serves primarily for recreational purposes, with a height of 16 feet and a length of 300 feet. It has a storage capacity of 15.3 acre-feet, with a normal storage level of 9.8 acre-feet and a surface area of 3.7 acres.

Despite its recreational focus, Greenburg Dam poses a significant hazard potential with a poor condition assessment as of May 2018. The dam is regulated by the NYS DEC and undergoes regular inspections, with the last one conducted in June 2020. The dam's spillway is uncontrolled, and it is situated on a tributary to the Little Wappingers Creek.

With a moderate risk level assigned to it, Greenburg Dam presents an interesting case study for water resource and climate enthusiasts. As efforts continue to manage and maintain the dam, there is a need for ongoing risk assessment and management measures to ensure the safety and stability of this recreational structure in New York.

Year Completed

1965

Dam Length

300

Dam Height

16

River Or Stream

Trib to Little Wappingers Creek

Primary Dam Type

Earth

Surface Area

3.7

Drainage Area

0.29

Nid Storage

15.3

Hazard Potential

Significant

Nid Height

16
       
Seasonal Comparison

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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.