Alpina Dam

Alpina Dam is a concrete dam located in Lewis County, New York, built in 1933. It carries a Low hazard potential classification.

About Alpina Dam

Alpina Dam is a dam in Lewis, New York. The dam is owned by Niagara Mohawk Power Corporation (public utility). It impounds the Bonaparte Creek near Ft Drum Military Rsrvtn.

The dam stands 7 feet tall and stretches 120 feet across, creates a reservoir covering 1,286 acres, has a maximum storage capacity of 39,739 acre-feet, and collects water from a drainage area of 18 square miles. Completed in 1933, the structure is well-established, with more than 75 years of service.

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 07/23/2002. That was over 23 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateNew York
CountyLewis
Nearest CityFt Drum Military Rsrvtn
River/StreamBonaparte Creek
Coordinates44.17056, -75.43194

Physical Characteristics

Dam TypeConcrete
NID Height7 ft
Dam Height7 ft
Dam Length120 ft
Year Completed1933 (93 years old)

Storage & Hydraulics

NID Storage39,739 acre-ft
Max Storage39,739 acre-ft
Normal Storage39,739 acre-ft
Surface Area1,286 acres
Drainage Area18 sq mi
Max Discharge412 cfs
Spillway TypeControlled

Ownership & Safety

PurposeOther
OwnerNIAGARA MOHAWK POWER CORPORATION
Owner TypePublic Utility
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection07/23/2002
Emergency Action PlanNot Required

Identifiers

NID IDNY00778
Federal IDNY00778
More InfoState Dam Safety Program

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