Second Pond Dam

Second Pond Dam is an earth dam located in Rensselaer County, New York, built in 1975. It carries a High hazard potential classification and has a fair condition assessment.

About Second Pond Dam

The primary purpose of Second Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Nys Parks, Recreation & Historic Preservation (state). It impounds the Tr-quacken Kill near Grafton.

The dam stands 9 feet tall and stretches 250 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 415 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.

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 01/05/2024.

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 CityGrafton
River/StreamTr-quacken Kill
Coordinates42.77833, -73.45000

Physical Characteristics

Dam TypeEarth
NID Height9 ft
Dam Height9 ft
Dam Length250 ft
Year Completed1975 (51 years old)

Storage & Hydraulics

NID Storage415 acre-ft
Max Storage415 acre-ft
Normal Storage415 acre-ft
Surface Area30 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerNYS PARKS, RECREATION & HISTORIC PRESERVATION
Owner TypeState
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection01/05/2024
Emergency Action PlanYes

Identifiers

NID IDNY01313
Federal IDNY01313
More InfoState Dam Safety Program

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