Gateway West

Together, Idaho Power and Rocky Mountain Power are permitting and building approximately 1,000 miles of high voltage transmission lines across Wyoming and southern Idaho.

This project is needed to meet increasing customer demand, as well as increase transmission capacity and reliability for the companies’ respective service areas.

The project is scheduled for line segments to be completed in phases between 2019 and 2024, beginning in Wyoming and moving west.

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

Contact Information

If you have questions about the Gateway West project, or have information you want to share, contact us at or 1-888-757-6957.