Halcottsville Dam Reservoir Report
Nearby: Camp Ta-Ri-Go Dam Roxbury Dam
Last Updated: December 6, 2025
The Halcottsville Dam, located in Halcottsville, New York, was completed in 1909 and serves as a recreational site for water and climate enthusiasts.
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Summary
The dam, made of stone, stands at a height of 7 feet and has a length of 132 feet. It impounds the East Branch Delaware River, providing a storage capacity of 250 acre-feet with a normal storage of 100 acre-feet. The dam's spillway is controlled with a width of 70 feet, ensuring regulated water release.
Despite its historical significance and recreational value, the Halcottsville Dam poses a significant hazard potential with a poor condition assessment. The dam is under state regulation and inspection by the New York State Department of Environmental Conservation, with enforcement and permitting processes in place. The last inspection in December 2019 highlighted the dam's poor condition, prompting a very high risk assessment. With a risk management plan yet to be outlined, there is a pressing need for further evaluation and potential repairs to ensure the safety of the surrounding community and environment.
Year Completed |
1909 |
Dam Length |
132 |
Dam Height |
7 |
River Or Stream |
EAST BRANCH DELAWARE RIVER |
Primary Dam Type |
Stone |
Surface Area |
50 |
Drainage Area |
10 |
Nid Storage |
250 |
Hazard Potential |
Significant |
Nid Height |
7 |
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.
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