Lock E11 Amsterdam Reservoir Report
Nearby: Brookside Reservoir Dam Smeallie Dam
Last Updated: December 21, 2025
Lock E11 Amsterdam, located in Montgomery County, New York, along the Mohawk River (Erie Canal), was completed in 1910 and serves the primary purpose of hydroelectric power generation and navigation.
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Summary
This state-regulated structure is owned by the State of New York and falls under the jurisdiction of the New York State Department of Environmental Conservation (NYS DEC). With a dam height of 12 feet and a length of 588 feet, Lock E11 Amsterdam has a storage capacity of 5973 acre-feet and a surface area of 414 acres, serving a drainage area of 3123 square miles.
Managed by the Federal Energy Regulatory Commission (FERC), Lock E11 Amsterdam features a controlled spillway with a width of 570 feet and is classified as having a low hazard potential. Despite its age, the condition assessment of the structure is not available, but regular inspections are conducted with a frequency of every 3 years. The risk assessment for Lock E11 Amsterdam indicates a very high risk level (1), emphasizing the importance of proper risk management measures to ensure the safety and functionality of the dam for both water resource management and climate adaptation strategies in the region.
Year Completed |
1910 |
Dam Length |
588 |
Dam Height |
12 |
River Or Stream |
Mohawk River (Erie Canal) |
Primary Dam Type |
Other |
Surface Area |
414 |
Drainage Area |
3123 |
Nid Storage |
5973 |
Hazard Potential |
Low |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Schoharie Creek At Burtonsville Ny
|
1840cfs |
Glowegee Creek At West Milton Ny
|
67cfs |
Canajoharie Creek Nr Canajoharie Ny
|
40cfs |
Otsquago Creek At Fort Plain Ny
|
105cfs |
East Canada Creek At East Creek Ny
|
1150cfs |
Mohawk River At Cohoes Ny
|
13600cfs |
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.
Lock E11 Amsterdam