Black Canyon Dam Third Hydroelectric Generating Unit Project

Black Canyon DamReclamation has completed a design for a proposed third hydroelectric generating unit at Black Canyon Diversion Dam. Before proceeding with construction, the project is undergoing a comprehensive economic analysis and environmental assessment.

The proposed 12.5 MW hydroelectric unit will expand the generating capacity at the facility by 105 million kilowatt-hours (enough to provide power to 9,359 homes each year). The power produced will be integrated into the power grid to serve 10 irrigation districts in southern Idaho and eastern Oregon, as well as the Shoshone-Bannock Tribes.

The proposed additional generating unit will take advantage of water that would typically go over the dam and turn it into hydroelectric power. It will also provide operational flexibility when one of the existing units is shut down for maintenance.

The majority of the project will be funded by Bonneville Power Administration, which markets hydroelectric power generated at Reclamation facilities in the Pacific Northwest.

Related Information
02/2015 Fact Sheet: Black Canyon Dam Proposed Third Hydroelectric Generating Unit PDF 85 kb
06/2013 Black Canyon Power Plant Location Map PDF 167 kb
10/2011 Final Environmental Assessment Finding of No Significant Impact Construction of a Third Hydroelectric Generating Unit - Black Canyon Dam PDF 2.22 mb
06/2011 Construction of a Third Hydroelectric Generating Unit - Black Canyon Dam Draft Environmental Assessment PDF 2.21 mb
News Releases
01/23/2015 Wild Rose Park Will Remain Open for the 2015 Recreation Season
07/01/2014 Wild Rose Park to Close during Construction at Black Canyon Diversion Dam in 2015
06/16/2014 New Hydroelectric Generating Unit Delayed at Black Canyon Diversion Dam
06/20/2013 Wild Rose Park to Close During Construction at Black Canyon Diversion Dam
06/13/2013 Reclamation to Host Open House on Black Canyon Diversion Dam Hydropower Construction Project
01/29/2013 Reclamation Resumes Drawdown at Black Canyon Reservoir for Data Collection
12/14/2012 Reclamation Work at Black Canyon Dam Delayed Due to Recent Rainfall, Caution Advised Near Riverbanks
11/09/2012 Reclamation Draws Black Canyon Reservoir Down for Design Data Collection, Caution Advised by Riverbanks
10/25/2011 Reclamation Issues Final EA/FONSI on New Hydropower Unit at Black Canyon Diversion Dam
Additional Resources


Chris Vick
(208) 378-6547

Bureau of Reclamation
Pacific Northwest Regional Office
1150 North Curtis Road, Suite 100
Boise, Idaho 83706-1234

Gretchen Fitzgerald
(208) 383-2231

Bureau of Reclamation
Snake River Area Office
230 Collins Road
Boise, Idaho 83702

Last Updated: 9/24/15