Middle Greenwich Dam Reservoir Report
Nearby: Upper Greenwich Lower Greenwich Dam
Last Updated: December 15, 2025
Middle Greenwich Dam, also known as Palmer Dam, is a private hydroelectric structure located in Greenwich, New York.
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Summary
Completed in 1902, this concrete dam stands at 10 feet tall and spans 275 feet in length, with a storage capacity of 80 acre-feet. Situated on the Batten Kill River, the dam serves as a crucial source of renewable energy in the area.
With a significant hazard potential and a moderate risk assessment rating, Middle Greenwich Dam undergoes regular inspections to ensure its structural integrity and safety. Despite being privately owned and not regulated by the state, the dam plays a vital role in the local water resource management and contributes to the overall hydroelectric power generation in New York. The dam's uncontrolled spillway and proximity to the Batten Kill River highlight its importance in flood control and water flow regulation.
Middle Greenwich Dam's historical significance, coupled with its modern-day operational role, makes it a key feature for water resource and climate enthusiasts. Its location in the scenic town of Greenwich, New York, adds to the allure of this hydroelectric structure, which continues to play a crucial role in the region's water management and renewable energy production efforts.
Year Completed |
1902 |
Dam Length |
275 |
Dam Height |
10 |
River Or Stream |
BATTEN KILL |
Primary Dam Type |
Concrete |
Surface Area |
9 |
Drainage Area |
401 |
Nid Storage |
80 |
Hazard Potential |
Significant |
Nid Height |
10 |
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.
Middle Greenwich Dam