Alcove Dam Reservoir Report
Nearby: Basic Creek Dam Medway Dam
Last Updated: February 23, 2026
Alcove Dam, located in Albany, New York, is a vital water resource structure managed by the local government.
Summary
Built in 1929, this earth dam stands at 80 feet in height and spans 2180 feet in length, serving primarily as a water supply source for the region. With a storage capacity of 40,242 acre-feet and a drainage area of 32.5 square miles, Alcove Dam plays a crucial role in maintaining water levels and managing flow rates along the Hannacrois Creek.
Despite its age, Alcove Dam remains in satisfactory condition and has a high hazard potential due to its significant storage capacity. Regular inspections are conducted to ensure its structural integrity and safety. The dam features an uncontrolled spillway with a width of 300 feet and a maximum discharge capacity of 12,410 cubic feet per second. With its moderate risk assessment rating and satisfactory condition, Alcove Dam continues to be a key asset in water resource management and climate resilience efforts in the region.
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15-Day Weather Outlook
Year Completed |
1929 |
Dam Length |
2180 |
Dam Height |
80 |
River Or Stream |
HANNACROIS CREEK |
Primary Dam Type |
Earth |
Surface Area |
1434 |
Drainage Area |
32.5 |
Nid Storage |
40242 |
Hazard Potential |
High |
Nid Height |
80 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Normans Kill At Albany Ny
|
338cfs |
Kinderhook Creek At Rossman Ny
|
506cfs |
Valatie Kill Near Nassau Ny
|
21cfs |
Hudson River At Green Island Ny
|
3890cfs |
East Kill Nr Jewett Center Ny
|
51cfs |
Mohawk River At Cohoes Ny
|
2660cfs |
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.
Alcove Dam