Knupfer Dam & Dike Reservoir Report
Last Updated: December 7, 2025
Knupfer Dam & Dike, also known as Bdk Corp Pond, is a private water resource structure located in Sunnyside, Greene, New York.
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Summary
Completed in 1972, this earthen dam stands at a height of 16 feet and stretches 195 feet in length, providing a storage capacity of 88 acre-feet. With a primary purpose of recreation, it offers a serene surface area of 8 acres for outdoor activities while serving as a low hazard potential structure with a moderate risk assessment rating.
Managed by the New York State Department of Environmental Conservation, Knupfer Dam & Dike is state-regulated and undergoes regular inspections, permitting, and enforcement measures to ensure its safety and compliance with regulations. Situated on the TR-Bowery Creek, this dam plays a crucial role in managing water resources and mitigating potential risks in the surrounding area. Despite not being federally owned or funded, its significance in water management and recreational use makes it a valuable asset to the local community and visitors alike.
With a spillway width of 19 feet and a maximum discharge capacity of 280 cubic feet per second, Knupfer Dam & Dike is equipped to handle controlled water releases during high flow periods. Although the structure has not been rated for its condition assessment, its low hazard potential and moderate risk assessment suggest that it is well-maintained and poses minimal threat to the environment and downstream areas. As a focal point for recreation and water resource management, this dam and dike exemplify the intersection of human infrastructure and natural ecosystems in the ongoing effort to sustainably utilize and protect our valuable water resources.
Year Completed |
1972 |
Dam Length |
195 |
Dam Height |
16 |
River Or Stream |
TR-BOWERY CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
0.12 |
Nid Storage |
88 |
Hazard Potential |
Low |
Nid Height |
16 |
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.
Knupfer Dam & Dike