Gary Mahany Pond Dam Reservoir Report
Nearby: Stanley Osborn Dam Pinewood Lake Dam
Last Updated: December 6, 2025
Gary Mahany Pond Dam in Steuben, New York, is a privately owned earth dam built in 1998 for irrigation purposes along the TR-LIME KILN CREEK.
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Summary
The dam stands at 17 feet high with a length of 1125 feet, providing a storage capacity of 114 acre-feet. Despite its low hazard potential, the dam is considered to have a high risk due to its condition being "Not Rated" and lacking a comprehensive risk assessment.
Located within the Buffalo District, the dam is regulated by the NYS DEC and undergoes state permitting, inspection, and enforcement. With a normal storage capacity of 75 acre-feet and a maximum discharge of 138 cubic feet per second, the dam plays a crucial role in supporting local irrigation needs. However, the lack of a spillway and a condition assessment raises concerns about its long-term safety and effectiveness in managing water resources in the region.
Enthusiasts in water resource and climate management should keep a close eye on the state of Gary Mahany Pond Dam to ensure it continues to operate safely and efficiently. With its strategic location and importance for irrigation, monitoring and assessing the dam's condition and risk management measures are essential to safeguarding water resources and mitigating potential hazards in the area.
Year Completed |
1998 |
Dam Length |
1125 |
Dam Height |
17 |
River Or Stream |
TR-LIME KILN CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Drainage Area |
0.1 |
Nid Storage |
114 |
Hazard Potential |
Low |
Nid Height |
17 |
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.
Gary Mahany Pond Dam