Hailesboro 4 Plant P-6058

General information

Waterway  Oswegatchie River
Current status   Active license 
Type of facility Conventional Hydro
Mode of hydropower generation Run-of-river
Type of permit FERC License

FERC information

FERC docket # P-6058
FERC project name Hailesboro No 4
Permit issued 10/25/02
Permit expiration 12/27/32

Ownership and operation

Owner type Private Non-utility
Year first online (conventional hydro) 1922
Transmission or distribution system owner Niagara Mohawk Power Corp.

Power and generating capacity

Number of units 2
Total capacity from hydraulic turbine-generator units within each plant 1.4 MW
Average annual net hydropower generation 10,507.6 MWH

Hailesboro No. 4 is located on the Oswegatchie River in St. Lawrence County, near the village of Gouverneur, New York.

The project consists of one 5-foot-high by 58-foot-long concrete gravity dam, a 2-acre reservoir at the normal pool elevation of 461 feet (NGVD), a powerhouse containing two turbine/generating units having a total ratedcapacity of 1,490 kW, and appurtenant facilities.

This project also includes the Island Branch diversion dam.


License Application Filed 01-02-2001
SD1 Issued 09-07-2001
SD2 Issued 02-07-2002
NREA Issued 01-30-2002
EA Issued 06-28-2002
License Issued

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