Segment D.2 - Aeolus to Bridger/Anticline

On April 4, 2017, PacifiCorp issued its 2017 Integrated Resource Plan announcing plans to construct a portion of Segment D - Windstar to Populus. Independent of Idaho Power, PacifiCorp will initiate state and local permitting and right of way acquisition for 140 miles of 500 kV transmission line between the planned Aeolus substation near Medicine Bow, Wyoming and the Jim Bridger power plant near Point of Rocks, Wyoming.

Construction of Segment D.2 is part of PacifiCorp’s Energy Vision 2020 project. Energy Vision 2020 is a $3.5 billion investment, which includes adding up to 1,100 megawatts of new wind by 2020, primarily in Wyoming; “repowering” the existing company-owned Wyoming wind fleet with longer blades and newer technology to increase energy production and extend the life of the projects; and construction of a new 140-mile Gateway West transmission segment by 2020. The availability of federal tax credits will help cover the costs of these investments and provide a net savings to customers over the life of the projects. You can find more information at energyvision2020.com.

Project Timeline

  • Public Scoping – June 2008
  • Environmental Impact Statement – 2007 - 2013
  • Record of Decision – November 2013 includes numerous Notice to Proceed (NTP) requirements. The company is working with Bureau of Land Management to comply and obtain the various NTPs.
  • Public outreach – June 2008 through project completion
  • State and local permitting

    • Wyoming Public Service Commission Certificate of Public Convenience and Necessity application submitted June 30, 2017
    • Wyoming Industrial Siting Division permit application scheduled for May 2018
    • Carbon County conditional use permit application scheduled for March 2018
  • Obtaining rights of way – Initiated May 2017
  • Engineer Procure Construction Contract – June - November 2018
  • Construction start – April 2019
  • Planned line in service for customers – December 2020

Additional Information About the Project

Under the National Environmental Policy Act, the Bureau of Land Management (BLM) has completed the Environmental Impact Statement (EIS) for the Gateway West project. The BLM released its final EIS on April 26, 2013, followed by the Record of Decision on November 14, 2013, providing a right-of-way grant for all segments in Wyoming and partial in Idaho.

Public Participation

Public input is an important part of the transmission line development process and is welcomed at all stages. In addition to public, group and individual meetings, project materials and newsletters also have been sent to more than 11,000 landowners and other interested parties throughout this process and will continue through the end of the project with continued web page and newsletter updates.

For a comprehensive list of meetings, publications and other public outreach, can be found on our Gateway West website.

To contact Rocky Mountain Power about this transmission project, please call the major construction projects message line at 801-220-4221, or email ConstructionProjects@pacificorp.com. Please be sure to include the project name – "Gateway West – Aeolus to Bridger/Anticline project" – in your inquiry.

Gateway West

Updated maps can be viewed below:

Further information also can be found at our Gateway West website.


(Updated August 2017)
 

Customer Service

Customer Service

Customer service
1-888-221-7070

Start service

Report a power outage
1-877-508-5088

Report a streetlight outage