Goshen Reservoir #2 Dam Reservoir Report

Last Updated: January 12, 2026

Goshen Reservoir #2 Dam, also known as Greenhill Reservoir, is a vital water supply structure located in Otter Kill, Orange County, New York.


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Summary

Completed in 1933, this earth dam stands at a height of 30 feet and spans 500 feet in length. It serves the primary purpose of water supply and has a storage capacity of 96 acre-feet, with a normal storage level of 83 acre-feet.

Managed by the local government, Goshen Reservoir #2 Dam is regulated by the New York State Department of Environmental Conservation (NYS DEC) and undergoes regular inspections to ensure its structural integrity. The dam's spillway type is uncontrolled, with a width of 32 feet, and has a low hazard potential. The risk assessment for this dam is moderate, with a moderate risk rating of 3. The surrounding area has a surface area of 11 acres and a drainage area of 0.61 square miles, with a maximum discharge capacity of 770 cubic feet per second.

Overall, Goshen Reservoir #2 Dam plays a crucial role in providing water supply to the local community and maintaining water resource sustainability in the region. Climate enthusiasts and water resource experts can appreciate the significance of this structure in ensuring water security and mitigating risks associated with its operation.

Year Completed

1933

Dam Length

500

Dam Height

30

River Or Stream

OTTER KILL

Primary Dam Type

Earth

Surface Area

11

Drainage Area

0.61

Nid Storage

96

Hazard Potential

Low

Nid Height

30
       
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.