Eel Weir

Eel Weir is a buttress dam located in St. Lawrence County, New York, built in 1928. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Eel Weir

The primary purpose of Eel Weir 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 Oswegatchie River near Ogdensburg.

The dam stands 23 feet tall and stretches 965 feet across, creates a reservoir covering 96 acres, has a maximum storage capacity of 136 acre-feet, and collects water from a drainage area of 1,580 square miles. Completed in 1928, 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 06/05/2019.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

Low HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateNew York
CountySt. Lawrence
Nearest CityOgdensburg
River/StreamOswegatchie River
Coordinates44.63830, -75.49110

Physical Characteristics

Dam TypeButtress
NID Height23 ft
Dam Height23 ft
Dam Length965 ft
Year Completed1928 (98 years old)

Storage & Hydraulics

NID Storage136 acre-ft
Max Storage136 acre-ft
Normal Storage136 acre-ft
Surface Area96 acres
Drainage Area1,580 sq mi
Max Discharge62,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerErie Boulevard Hydropower, L.P.
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection06/05/2019
Emergency Action PlanYes

Identifiers

NID IDNY00404
Federal IDNY00404
More InfoState Dam Safety Program

Nearby Dams