Bull elk on Elk Mountain near Newcastle, Wyoming. Photo by Nate West. Oil rig in Wyoming. Wild horse near Rock Springs, Wyoming. Coal mining operations in the Powder River Basin of northeastern Wyoming. Pronghorn in Wyoming.
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TransWest Express Transmission Line Project

Document Library - upd. 05/04/15 
Greater Sage-Grouse Mitigation Plan 
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  November 2014 Newsletter 

Right-of-Way Documents
  A Citizen's Guide to the NEPA:
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  NEPA Process Flowchart
Proponent's Website 
Direct current power transmission line.
The Bureau of Land Management and the Western Area Power Administration are co-lead agencies in preparing an environmental impact statement under the National Environmental Policy Act for the TransWest Express Transmission Project. Western plans to partially fund the project under the American Recovery and Reinvestment Act of 2009.

The TransWest Express Transmission Project would provide transmission infrastructure and capacity to deliver approximately 3,000 megawatts of electric power from renewable and other energy resources in south-central Wyoming to a substation hub in southern Nevada. The proposed project would consist of an approximately 730-mile-long, 600-kilovolt, direct current transmission line, a northern terminal located near Sinclair, Wyoming, and a southern terminal approximately 25 miles south of Las Vegas, Nevada. A ground electrode system (required for transmission line emergency shutdown) would be installed within 100 miles of each terminal.

The proposed transmission line would cross Wyoming, Colorado, Utah, and Nevada, and encompass lands owned or administered by the BLM, U.S. Forest Service, National Park Service, Bureau of Reclamation, Utah Reclamation Mitigation and Conservation Commission, various state agencies, Native American tribes, municipalities, and private parties. The BLM and Western have included the government entities as cooperating agencies throughout this EIS process.

Final Environmental Impact Statement

The Final EIS responds to comments received on the Draft EIS and agency-preferred alternative by making clarifications and adjusting some routes. The Final EIS also includes amendments of Forest Service Land and Resource Management Plans and BLM land use plans. The BLM and the Forest Service have integrated the land use planning process with the NEPA analysis process for this project.

To view the FEIS

  • View and download
  • Review a copy at a public library or public reading rooms in BLM or Forest Service offices in the project area
  • Request a compact disc version of the document by contacting: Sharon Knowlton, Project Manager, BLM Wyoming State Office, P.O. Box 20678, Cheyenne, WY 82003

Thirty-day protest period

Publishing the notice of availability in the Federal Register on May 1, 2015, initiates a 30-day protest period on the BLM land use plan amendments. Protests must be submitted in writing by June 1, 2015.

The Forest Service will publish a separate notice of availability in the Federal Register concurrent with the release of a draft Forest Service Record of Decision when the BLM publishes its Record of Decision for this project. When the Forest Service releases this draft Record of Decision, there will be an Objection Period.

To submit a protest to the BLM via regular mail, send to: BLM Director (210), Attention: Brenda Williams, P.O. Box 71383, Washington, D.C. 20004-1383.

Protests submitted via overnight mail should be sent to: BLM Director (210), Attention: Brenda WIlliams, 20 M Street SE, Room 2134LM, Washington, D.C. 20003.


Contact: Sharon Knowlton, Project Manager

Phone: 307-775-6124  |  Email:

Mail: TransWest Express Project  |  PO Box 20678  |  Cheyenne WY  82003