Peconic River Sportsman Club Dam Reservoir Report
Nearby: Peconic Lake Dam Lower Lake Dam
Last Updated: January 2, 2026
The Peconic River Sportsman Club Dam, located in Calverton, New York, was completed in 1925 and serves as a vital structure on the Peconic River.
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Summary
This private earth dam stands at a height of 11 feet and has a length of 610 feet, providing a storage capacity of 420 acre-feet. The dam's primary purpose is classified as "Other," with a spillway type of "Controlled" and a maximum discharge of 600 cubic feet per second.
With a significant hazard potential and a very high risk assessment rating, this dam is under the regulatory oversight of the New York State Department of Environmental Conservation (NYS DEC). Regular inspections are conducted, with the last assessment occurring in November 2018. Despite being deemed in "Not Rated" condition, the dam is monitored closely to ensure its safety and integrity. The surrounding community is also prepared for emergencies, although specific details on emergency action plans are not provided in the available data.
For water resource and climate enthusiasts, the Peconic River Sportsman Club Dam presents an intriguing case study of a historic structure in need of ongoing management and maintenance to mitigate potential risks and ensure the safety of downstream communities. The dam's role in regulating water flow and storage on the Peconic River underscores the importance of proactive monitoring and regulatory oversight to address potential hazards and safeguard the surrounding environment. As efforts continue to assess and manage the dam's condition, stakeholders and authorities must work together to implement effective risk management measures and emergency preparedness protocols to protect both the dam and the local ecosystem.
Year Completed |
1925 |
Dam Length |
610 |
Dam Height |
11 |
River Or Stream |
PECONIC RIVER |
Primary Dam Type |
Earth |
Surface Area |
63 |
Drainage Area |
26.6 |
Nid Storage |
420 |
Hazard Potential |
Significant |
Nid Height |
11 |
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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Peconic River Sportsman Club Dam
Peconic River