Colgate Lake Dam Reservoir Report
Nearby: Camp Harriman Dam Onteora Pond Dam
Last Updated: December 6, 2025
Colgate Lake Dam, located in Jewett, New York, is a state-owned structure built in 2007 primarily for recreational purposes.
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Summary
This earth dam stands at a height of 20 feet and stretches 400 feet in length, with a storage capacity of 335 acre-feet. Situated on the East Kill river, the dam has a spillway width of 55 feet and a maximum discharge rate of 4250 cubic feet per second, making it a significant structure in the region.
Despite its satisfactory condition assessment, Colgate Lake Dam poses a significant hazard potential and is subject to regular inspections by the New York State Department of Environmental Conservation, ensuring its continued safety and functionality. With a moderate risk assessment rating of 3, the dam's emergency action plan and risk management measures are vital components in maintaining public safety and preserving the surrounding environment. Climate and water resource enthusiasts can appreciate the complexity and importance of this dam in managing water resources and mitigating potential risks in Greene County, New York.
Overall, Colgate Lake Dam serves as a crucial infrastructure for water management and recreational activities in the region, highlighting the intersection of human intervention with natural resources. Its construction and maintenance reflect the ongoing efforts to balance the needs of water users with environmental protection, demonstrating the significance of sustainable practices in the face of climate change and increasing water demands. As a key component of the local water infrastructure, Colgate Lake Dam stands as a testament to the careful planning and management required to ensure the safety and well-being of communities in the area.
Year Completed |
2007 |
Dam Length |
400 |
Dam Height |
20 |
River Or Stream |
EAST KILL |
Primary Dam Type |
Earth |
Surface Area |
24 |
Drainage Area |
5.1 |
Nid Storage |
335 |
Hazard Potential |
Significant |
Nid Height |
20 |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
North/South Lake - DEC
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Devils Tombstone - DEC
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Rip Van Winkle Camping
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Koa Camping
|
Colgate Lake Dam