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Environmental Review -- NEPA
Transmission Infrastructure Program

TransWest Express Transmission Project

TransWest Express, LLC proposes to construct, operate, maintain and decommission the TransWest Express 600-kV Direct Current Transmission Project. TransWest Express, LLC is a whollyowned subsidiary of the Anschutz Corporation.

The Project consists of an overhead transmission line extending approximately 725 miles from south-central Wyoming crossing Colorado and Utah, with a potential interconnection at the Intermountain Power Project near Delta, Utah, and terminating at the Marketplace Hub in southern Nevada. This Project would include two AC/DC converter stations, about 200 acres in size at each terminating point, a fiber optic network communications system, and two ground electrode facilities, each about 600 acres in size. When completed, this Project would transmit about 3,000 megawatts of electricity per year generated primarily from renewable resources at planned facilities in Wyoming.

The Bureau of Land Management, Wyoming State Office and Western are joint lead agencies for the preparation of the environmental impact statement, and Western is proposing to participate as a joint owner in the Project.

November 2014 newsletter update

The BLM and Western published a newsletter in November 2014 (pdf) to provide an update on the status of the environmental impact statement for the TransWest Express Transmission Project. In the newsletter, the agencies summarized all of the input received during the draft EIS public commenting period in fall 2013, as well as where readers will find responses to comments in the upcoming final EIS. The final EIS is expected to be released in April 2015.

The newsletter also provides a map of the joint Agency Preferred Alternative that will be presented in the Final EIS. This preferred alternative is the result of continued environmental analysis and public comments on the draft EIS. The Agency Preferred Alternative in Wyoming and Utah reflects adjustments from the Preferred Alternative analyzed in the Draft EIS. In Colorado and Nevada, the Agency Preferred Alternative is unchanged.

For more information, all project-related documents are available on BLM’s TransWest Express project webpage.

Project documents Resources