Leland Ryder Lake Dam

Leland Ryder Lake Dam is an earth dam located in Putnam County, New York, built in 1965. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspection05/03/2012
Height21 ft
Built196561 years ago

Dam profile

NID height · 21 ft
21 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

21 ft tall and 220 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About Leland Ryder Lake Dam

The primary purpose of Leland Ryder Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Estate of Leland Ryder (private). It impounds the Black Pond Brook near Meads Corners.

The dam stands 21 feet tall and stretches 220 feet across, creates a reservoir covering 26 acres, has a maximum storage capacity of 180 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1965, the structure is well into its service life at over 50 years old.

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. The most recent inspection on record was 05/03/2012. That was over 14 years ago.

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Location

StateNew York
CountyPutnam
Nearest CityMeads Corners
River/StreamBlack Pond Brook
Coordinates41.50333, -73.76361

Physical Characteristics

Dam TypeEarth
NID Height21 ft
Dam Height21 ft
Dam Length220 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage180 acre-ft
Max Storage180 acre-ft
Normal Storage140 acre-ft
Surface Area26 acres
Drainage Area1 sq mi
Max Discharge480 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerEstate of Leland Ryder
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Last Inspection05/03/2012
Emergency Action PlanNot Required

Identifiers

NID IDNY00132
Federal IDNY00132
More InfoState Dam Safety Program