Glenwood Lake Dam Reservoir Report

Last Updated: December 6, 2025

Glenwood Lake Dam, located in Pelham, New York, serves as a crucial structure along the TR-HUTCHINSON RIVER, providing essential flood control and recreational opportunities for the community.


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Summary

Managed by the local government and regulated by the NYS DEC, this earth dam stands at a height of 12 feet and has a storage capacity of 11 acre-feet, with a spillway width of 6 feet for uncontrolled discharge.

Despite its significance, the dam's condition assessment indicates it is in poor condition, with a significant hazard potential. The last inspection in November 2020 revealed the need for improvements, highlighting the importance of regular maintenance and risk management measures. With a moderate risk rating, stakeholders must prioritize safety and emergency preparedness to ensure the dam's resilience in the face of potential climate challenges.

Water resource and climate enthusiasts should monitor Glenwood Lake Dam closely, as its condition and risk profile underscore the importance of proactive management in safeguarding infrastructure and surrounding communities. By addressing the dam's maintenance needs and implementing effective risk reduction measures, local authorities can enhance the resilience of this critical structure and mitigate potential adverse impacts on water resources and climate-related events in the region.

Dam Height

12

River Or Stream

TR-HUTCHINSON RIVER

Primary Dam Type

Earth

Surface Area

4

Drainage Area

0.12

Nid Storage

11

Hazard Potential

Significant

Nid Height

12
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.