Mechanicville Reservoir Report
Last Updated: December 15, 2025
Mechanicville, a state-owned hydroelectric dam located in Rensselaer, New York, along the Hudson River, stands as a testament to engineering excellence since its completion in 1900.
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Summary
With a concrete structure standing at 26 feet high and a hydraulic height of 19 feet, this dam serves multiple purposes including hydroelectric power generation, navigation, and recreation. Boasting a storage capacity of 1150 acre-feet and a maximum discharge rate of 169,900 cubic feet per second, Mechanicville plays a crucial role in ensuring water resource management and energy production in the region.
Despite its significant hazard potential, with a moderate risk assessment rating, Mechanicville has been subject to regular state inspections by the Federal Energy Regulatory Commission to ensure its structural integrity and operational safety. The dam's spillway, an uncontrolled type with a width of 700 feet, provides necessary flood control measures during periods of high water flow. Emergency action plans are in place, with an updated revision in August 2019, to efficiently respond to any unforeseen events or emergencies, reflecting a commitment to the safety and security of the surrounding community and environment.
With its intricate design, historical significance, and pivotal role in water resource management, Mechanicville stands as a remarkable example of sustainable infrastructure that balances the needs of energy production, navigation, and recreation while prioritizing safety and risk management. As climate change continues to impact water resources, Mechanicville serves as a vital asset in the region's efforts to adapt and mitigate the challenges posed by a changing environment, showcasing the resilience and adaptability of water resource infrastructure in the face of evolving climatic conditions.
Year Completed |
1900 |
Dam Length |
1774 |
Dam Height |
26 |
River Or Stream |
Hudson River |
Primary Dam Type |
Concrete |
Surface Area |
275 |
Hydraulic Height |
19 |
Drainage Area |
4572 |
Nid Storage |
1150 |
Structural Height |
26 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Significant |
Foundations |
Rock |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Hudson R Above Lock 1 Nr Waterford Ny
|
4840cfs |
Hudson River At Lock 1 Near Waterford Ny
|
4430cfs |
Mohawk River At Cohoes Ny
|
2440cfs |
Hudson River At Green Island Ny
|
3650cfs |
Hoosic River Near Eagle Bridge Ny
|
413cfs |
Glowegee Creek At West Milton Ny
|
15cfs |
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.
Mechanicville
Hudson River Road 951, City of Mechanicville