School Street : P-2539

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Summary

  • P-2539
  • Mohawk R
  • East
  • NY
  • 38.80 MW

License

  • Download License
  • 02-15-2007
  • NIAGARA MOHAWK POWER CORPORATION

Description

The project is located on the Mohawk River in Albany and Saratoga Counties, New York.

The School Street Project dam was constructed in 1831. Electric power generation commenced in 1916, and additional generating units were added in 1922 and 1925. The 16-foot-high dam, located about 4,000 feet above Cohoes Falls, impounds a reservoir with a surface area of about 100 acres. Water is diverted at the dam to a power canal, through which it is conveyed to a powerhouse just below Cohoes Falls, and then is returned to the Mohawk River.

The School Street Project includes a 1,280-foot-long, 16-foot-high masonry gravity overflow-type dam that impounds a 100-acre reservoir.

 

Milestones

License Issued 02-15-2007
Second Circuit Court Annuls 2007 License 08-10-2009
License Application Filed 12-23-1991
Settlement Filed 03-09-2009
DEA Issued 11-20-1996
FEA Issued 09-08-2001

Issues

It diverts water from the river at a dam located nearly 4000 feet upstream from Cohoes Falls, New York’s second largest waterfall. The water runs through a power canal that is 4400 feet long and 150feet wide and ultimately flows into a powerhouse containing five generating units with a total installed electrical capacity of 38.8 MW. The water flows through the powerhouse and is returned to the Mohawk River downstream from Cohoes Falls. In total, water diverted from the river by the School Street Project bypasses approximately 4500 feet of the riverbed, including the waterfall.