Eddyville Dam Reservoir Report
Nearby: Sturgeon Pool Dam Dashville Dam
Last Updated: December 6, 2025
Eddyville Dam, located on the Rondout Creek in New Salem, Ulster County, New York, is a historic masonry dam completed in 1850 with a height of 12 feet and a length of 220 feet.
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Summary
With a storage capacity of 90 acre-feet and a surface area of 15 acres, the dam serves a primary purpose of "Other" and is designated as a low hazard potential structure with a moderate risk assessment rating. Despite not being rated for its condition, the dam is state-regulated and subject to regular inspection, permitting, and enforcement by the New York State Department of Environmental Conservation.
Owned privately, Eddyville Dam is situated in a picturesque location and plays a crucial role in regulating the flow of the Rondout Creek. The dam features an uncontrolled spillway with a width of 220 feet and is not associated with any other structures in the area. While the dam has not been modified in recent years and lacks specific information on emergency action plans or risk management measures, its overall risk level is considered moderate. The dam is not under the jurisdiction of the US Army Corps of Engineers, highlighting the responsibility of the private owner in managing and maintaining this essential water resource infrastructure.
For water resource and climate enthusiasts, Eddyville Dam offers a fascinating glimpse into the historical development of water management infrastructure in New York. As a prominent masonry dam with a rich heritage dating back to the mid-19th century, the dam continues to provide valuable water storage and flow regulation services in the region. With its low hazard potential and moderate risk assessment, the dam represents a unique blend of historical significance and functional utility, underscoring the importance of balancing heritage preservation with modern-day water resource management practices.
Year Completed |
1850 |
Dam Length |
220 |
Dam Height |
12 |
River Or Stream |
RONDOUT CREEK |
Primary Dam Type |
Masonry |
Surface Area |
15 |
Drainage Area |
1069 |
Nid Storage |
90 |
Hazard Potential |
Low |
Nid Height |
12 |
Seasonal Comparison
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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.
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