Boniface Dam Reservoir Report
Last Updated: December 6, 2025
Boniface Dam, also known as Sam Slobodow Pond, is a privately owned recreational dam located in Sullivan, New York.
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Summary
Completed in 1970, this earthen dam stands at a height of 12 feet and spans a length of 290 feet, with a storage capacity of 600 acre-feet. Situated on the Black Creek, the dam serves primarily for recreational purposes, offering a surface area of 120 acres for outdoor activities.
Managed by the New York State Department of Environmental Conservation (NYS DEC), Boniface Dam is regulated, permitted, inspected, and enforced by the state agency. Despite its low hazard potential, the dam's risk assessment is moderate, with a risk rating of 3. While the condition of the dam is currently not rated, emergency action plans and risk management measures are yet to be fully implemented, highlighting the importance of ongoing monitoring and maintenance to ensure the safety and resilience of the structure.
With a spillway width of 20 feet and a maximum discharge capacity of 197 cubic feet per second, Boniface Dam plays a crucial role in managing water flow and protecting downstream areas. Congressman Antonio Delgado (D) represents the district where the dam is located, emphasizing the significance of community engagement and collaboration in safeguarding water resources and mitigating the impacts of climate change on infrastructure like Boniface Dam.
Year Completed |
1970 |
Dam Length |
290 |
Dam Height |
12 |
River Or Stream |
BLACK CREEK |
Primary Dam Type |
Earth |
Surface Area |
120 |
Drainage Area |
0.78 |
Nid Storage |
600 |
Hazard Potential |
Low |
Nid Height |
12 |
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.
Boniface Dam
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