Morgan Lake Dam

Morgan Lake Dam is an earth dam located in Dutchess County, New York, built in 1868. It carries a High hazard potential classification and has a fair condition assessment.

About Morgan Lake Dam

The primary purpose of Morgan 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 Poughkeepsie (local government). It impounds the Tr-fall Kill near Poughkeepsie.

The dam stands 20 feet tall and stretches 277 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 91 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1868, 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 11/06/2024.

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
CountyDutchess
Nearest CityPoughkeepsie
River/StreamTr-fall Kill
Coordinates41.71472, -73.90889

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length277 ft
Year Completed1868 (158 years old)

Storage & Hydraulics

NID Storage91 acre-ft
Max Storage91 acre-ft
Normal Storage56 acre-ft
Surface Area8 acres
Drainage Area0 sq mi
Max Discharge60 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCITY OF POUGHKEEPSIE
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection11/06/2024
Emergency Action PlanYes

Identifiers

NID IDNY00787
Federal IDNY00787
More InfoState Dam Safety Program

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