Boardman to Hemingway

To meet the need for more transmission capacity to serve customers in Idaho and throughout the Northwest, Idaho Power is proposing to build the 500-kilovolt Boardman to Hemingway transmission line.

The proposed route is approximately 300 miles long, running from northeast Oregon to southwest Idaho.

Idaho Power is leading the permitting phase efforts of the project, with Bonneville Power Administration and PacifiCorp as funding partners.

You can find more information on the project website, including:

The project website is a collaboration between Idaho Power, the Oregon Department of Energy, the Bureau of Land Management and the U.S. Forest Service.

Our View

Read our latest editorial opinion, Transmission Line Will Bring Multiple Benefits to Entire Region, by Idaho Power’s Resource Planning and Operations Director Mitch Colburn.

Contact Information

If you have questions about the Boardman-Hemingway project, or have information you want to share, email us at, or call toll-free at 1-877-339-0209.