Wright Lake Dam

Wright Lake Dam is an earth dam located in Rensselaer County, New York, built in 1861. It carries a High hazard potential classification and has a fair condition assessment.

About Wright Lake Dam

The primary purpose of Wright Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Troy (local government). It impounds the Piscawan Kill near Troy.

The dam stands 46 feet tall and stretches 350 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 129 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1861, the structure is one of the older dams in the region, with over a century and a half of service.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 01/09/2025.

At 46 feet, this dam is taller than 91% of dams nationwide.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The New York dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateNew York
CountyRensselaer
Nearest CityTroy
River/StreamPiscawan Kill
Coordinates42.74833, -73.67194

Physical Characteristics

Dam TypeEarth
NID Height46 ft
Dam Height46 ft
Dam Length350 ft
Year Completed1861 (165 years old)

Storage & Hydraulics

NID Storage129 acre-ft
Max Storage129 acre-ft
Normal Storage107 acre-ft
Surface Area7 acres
Drainage Area2 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCITY OF TROY
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection01/09/2025
Emergency Action PlanYes

Identifiers

NID IDNY00757
Federal IDNY00757
More InfoState Dam Safety Program

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