Soft Maple Spillway

Soft Maple Spillway is a concrete dam located in Lewis County, New York, built in 1926. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Soft Maple Spillway

The primary purpose of Soft Maple Spillway is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Erie Boulevard Hydropower, L.p. (private). It impounds the Beaver River near Belfort.

The dam stands 15 feet tall and stretches 173 feet across, creates a reservoir covering 400 acres, has a maximum storage capacity of 2,678 acre-feet, and collects water from a drainage area of 240 square miles. Completed in 1926, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/10/2022.

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Low HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateNew York
CountyLewis
Nearest CityBelfort
River/StreamBeaver River
Coordinates43.91670, -75.22480

Physical Characteristics

Dam TypeConcrete
NID Height15 ft
Dam Height15 ft
Dam Length173 ft
Year Completed1926 (100 years old)

Storage & Hydraulics

NID Storage2,678 acre-ft
Max Storage2,678 acre-ft
Normal Storage2,678 acre-ft
Surface Area400 acres
Drainage Area240 sq mi
Max Discharge31,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerErie Boulevard Hydropower, L.P.
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection08/10/2022
Emergency Action PlanYes

Identifiers

NID IDNY00304
Federal IDNY00304S002
More InfoState Dam Safety Program

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