The Gateway West Transmission Line Project is a joint project between Idaho Power and Rocky Mountain Power to build, operate and maintain approximately 1,150 miles of new 230 kilovolt (kV) and 500 kV transmission lines across southern Wyoming and southern Idaho.

Idaho Power and Rocky Mountain Power are building this new transmission line to provide electricity to meet increasing customer needs. It will deliver power from existing and future electric resources including renewable resources such as wind energy. In addition, the line will provide strength and reliability to the region’s transmission system. The project is scheduled for line segments to be completed in phases between 2014 and 2018.

This Web site contains important facts about the project, the companies and maps. Updates will be posted as new information becomes available, so check back often!

From 2008-2009, the project team hosted approximately 40 public meetings, in addition to participating in over 150 formal and informal meetings at the request of stakeholders and interested parties. In total, we met with almost 2,000 landowners and residents along the corridor, had nearly 6,000 visitors...

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