Hungry Horse Powerplant Modification

The Bureau of Reclamation invites the public to comment on the Draft Environmental Assessment (EA) for the proposed Hungry Horse Powerplant Modernization and Overhaul Project.

The proposed project involves modernizing and overhauling the powerplant to provide electrical power generation for an additional 30 years, while maintaining operations for flood risk management and fisheries resources. Many of the powerplant’s principal components have reached or exceeded their intended service life. They show problems stemming from age related wear that could potentially result in increased failures and longer forced outages, more-challenging repairs due to obsolescence and lack of spare parts, and higher operation and maintenance costs.

In order to meet current industry and life-safety standards, Reclamation would install new fire prevention and protection safety features; inspect and repair powerplant elevators; and replace or repair five of the six overhead cranes.

The potential environmental effects of three alternatives were analyzed in the draft EA, including a preferred alternative:

  • Alternative A – No Action: Reclamation continues to operate the four hydropower generating units with no planned powerplant overhaul. Maintenance and repairs would be performed on an as-needed basis.
  • Alternative B - HHPP Modernization - Two Generating Units Offline for Four Years: Work would be conducted on two generating units simultaneously for four years and single generating units for six years.
  • Alternative C - HHPP Modernization - Two Generating Units Offline for One Year (Preferred Alternative): Work would occur on two generating units simultaneously for one year and individual generating units for nine years.

Reclamation is seeking public comments. Please send written comments to Ms. Pam Druliner, Natural Resource Specialist, Bureau of Reclamation, 1150 N. Curtis Road, Boise, ID 83706 or via email at no later than Nov. 6, 2017.

10/2017 Hungry Horse Poewrplant Modernization & Overhaul Project Draft EA PDF 9.73 mb


Pam Druliner
Natural Resource Specialist

(208) 378-6214

Bureau of Reclamation
Pacific Northwest Regional Office
1150 N. Curtis Road
Boise, Idaho 83706

Last Updated: 10/2/17