Triah Lake Dam Reservoir Report
Last Updated: December 6, 2025
Triah Lake Dam, located in Plymouth, New York, is a private dam constructed in 2006 with the primary purpose of serving as a Fish and Wildlife Pond.
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Summary
The dam stands at 23 feet high and stretches over 1300 feet in length, with a storage capacity of 106.47 acre-feet. The dam is situated on TR-HAWLEY BROOK and is regulated by the NYS DEC, with inspection, permitting, and enforcement measures in place to ensure its safety and compliance with state regulations.
Despite its low hazard potential, Triah Lake Dam presents a moderate risk level according to the data provided, indicating the need for ongoing risk management measures. The dam features an uncontrolled spillway with a width of 33 feet, and its condition assessment is currently marked as "Not Rated." While there are no associated structures or outlet gates listed, the dam's location in Chenango County adds to its significance as a water resource for the region, offering recreational opportunities and support for local wildlife.
For water resource and climate enthusiasts, Triah Lake Dam serves as a vital component of the local ecosystem, providing water storage for fish and wildlife while also contributing to the overall hydrological balance of the area. With its moderate risk level and state-regulated status, the dam represents a focal point for ongoing monitoring and management efforts to ensure its continued safety and functionality for both human and environmental needs. As a privately owned structure, the dam stands as a testament to the importance of responsible water resource management and the intersection of human development with natural ecosystems.
Year Completed |
2006 |
Dam Length |
1300 |
Dam Height |
23 |
River Or Stream |
TR-HAWLEY BROOK |
Primary Dam Type |
Earth |
Surface Area |
10.6 |
Drainage Area |
330 |
Nid Storage |
106.47 |
Hazard Potential |
Low |
Nid Height |
23 |
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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