New York State Dam

New York State Dam is a concrete dam located in Saratoga County, New York, built in 1840. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About New York State Dam

The primary purpose of New York State Dam is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by New York State Department Of Transportation (state). It impounds the Mohawk River near Cohoes.

The dam stands 21 feet tall and stretches 1,950 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 275 acre-feet, and collects water from a drainage area of 3,462 square miles. Completed in 1840, the structure is one of the older dams in the region, with over a century and a half of service.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/09/2018.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNew York
CountySaratoga
Nearest CityCohoes
River/StreamMohawk River
Coordinates42.77759, -73.69478

Physical Characteristics

Dam TypeConcrete
NID Height21 ft
Dam Height21 ft
Dam Length1,950 ft
Year Completed1840 (186 years old)

Storage & Hydraulics

NID Storage275 acre-ft
Max Storage275 acre-ft
Normal Storage275 acre-ft
Surface Area27 acres
Drainage Area3,462 sq mi
Max Discharge38,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerNew York State Department of Transportation
Owner TypeState
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection07/09/2018
Emergency Action PlanNot Required

Identifiers

NID IDNY00949
Federal IDNY00949
More InfoState Dam Safety Program

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