U.S. DEPARTMENT OF THE INTERIORBUREAU OF LAND MANAGEMENT
Wyoming
Draft EIS Information
Read the Draft EIS or Request a CD version
Link to Interactive Project Map.
Mailing List
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Proponent's Website
Please visit Rocky Mountain Power and Idaho Power's Gateway West project website. This site contains project information, maps, documents and contact information.
Members of the public at a public scoping meeting in Kemmerer, Wyoming on June 12, 2008.
Members of the public at a public scoping meeting in Kemmerer, Wyoming on June 12, 2008.
About this project

The Bureau of Land Management (BLM) and U.S. Forest Service (USFS) Caribou-Targhee, Medicine Bow-Routt and Sawtooth National Forests are conducting the National Environmental Policy Act (NEPA) process for the proposed Gateway West Transmission Line Project. The BLM is the lead federal agency for the NEPA process.

The BLM has released the draft environmental impact statement for the project, proposed by Idaho Power Company and Rocky Mountain Power. This project would add approximately 1,100 miles of new high voltage transmission lines across southern Idaho and southern Wyoming.

The release of the draft EIS marks an important milestone in the project's environmental review process. This document analyzes the potential effects of the proposed route and considers several alternatives, including a no action alternative.

This project is jointly proposed by Idaho Power and Rocky Mountain Power. The companies plan to construct and operate 230 and 500 kilovolt (kV) transmission lines from the Windstar Substation near Glenrock, Wyoming to the Hemingway Substation near Melba, Idaho.

The proposed project is composed of 10 transmission line segments with a total length of approximately 1,100 miles across southern Wyoming and southern Idaho. The proposed line crosses approximately 500 miles of public land managed by the BLM, including 300 miles in Idaho and 200 miles in Wyoming.

Cooperating agencies include the U.S. Forest Service; National Park Service; U.S. Fish and Wildlife Service; U.S. Army Corps of Engineers; State of Wyoming; State of Idaho; Idaho Army National Guard; Cassia, Twin Falls and Power counties, Idaho; City of Kuna, Idaho; Elko County, Nevada; Carbon, Lincoln and Sweetwater counties, Wyoming; and the Saratoga-Encampment-Rawlins and Medicine Bow Conservation Districts in Wyoming.

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