Ryder Pond Dam

Ryder Pond Dam is a concrete dam located in Dutchess County, New York, built in 1951. It carries a Significant hazard potential classification and has a poor condition assessment.

About Ryder Pond Dam

The primary purpose of Ryder Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Taconic Girl Scouts (private). It impounds the Tr-stump Pond Brook near Ludingtonville.

The dam stands 12 feet tall and stretches 380 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 40 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1951, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 11/07/2024.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew York
CountyDutchess
Nearest CityLudingtonville
River/StreamTr-stump Pond Brook
Coordinates41.55142, -73.69600

Physical Characteristics

Dam TypeConcrete
NID Height12 ft
Dam Height12 ft
Dam Length380 ft
Year Completed1951 (75 years old)

Storage & Hydraulics

NID Storage40 acre-ft
Max Storage40 acre-ft
Normal Storage35 acre-ft
Surface Area10 acres
Drainage Area0 sq mi
Max Discharge124 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerTACONIC GIRL SCOUTS
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection11/07/2024
Emergency Action PlanYes

Identifiers

NID IDNY13899
Federal IDNY13899
More InfoState Dam Safety Program

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