Antwerp Dam #2 Reservoir Report
Last Updated: December 18, 2025
Antwerp Dam #2, located in Antwerp, New York, is a concrete dam built in 1925 for water supply purposes on the Indian River.
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Summary
Standing at a height of 13 feet and stretching 252 feet in length, the dam has a storage capacity of 50 acre-feet, with a normal storage level of 36 acre-feet. The dam serves a drainage area of 152.1 square miles and has a maximum discharge capacity of 454 cubic feet per second.
Despite its age, Antwerp Dam #2 has a low hazard potential and a moderate risk rating. The dam features an uncontrolled spillway with a width of 143 feet. While the condition assessment of the dam is currently listed as "Not Rated," it is regularly inspected by the New York State Department of Environmental Conservation to ensure its safety and efficacy in water management. The dam is under state regulation and jurisdiction, with permitting, inspection, and enforcement processes in place.
Water resource and climate enthusiasts can appreciate Antwerp Dam #2 for its historical significance in providing water supply to the local community and its impact on the Indian River watershed. The dam's design and construction reflect early 20th-century engineering practices, showcasing the importance of sustainable water management in the region. As a critical infrastructure owned by the local government, the dam plays a vital role in maintaining water quality and quantity for both human consumption and environmental conservation efforts in Jefferson County, New York.
Year Completed |
1925 |
Dam Length |
252 |
Dam Height |
13 |
River Or Stream |
INDIAN RIVER |
Primary Dam Type |
Concrete |
Surface Area |
8 |
Drainage Area |
152.1 |
Nid Storage |
50 |
Hazard Potential |
Low |
Nid Height |
13 |
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.
Antwerp Dam #2
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