Rocky Mountain Power is proposing to construct and operate 191.4 miles of 500 kilovolt (kV), 230-kV, and 345-kV electric transmission lines and substation facilities as a part of the Gateway West Transmission Line Project and the Energy Vision 2020 plan.

The proposed transmission lines and substation facilities are located entirely in Carbon and Sweetwater counties in Wyoming. Construction of the project is scheduled to begin in April 2019.

Gateway West Transmission Line Informational Posters