Gateway West Transmission Line | Segments 8 and 9








The BLM is preparing a supplemental environmental impact statement (EIS) analyzing new information associated with the potential impacts of approving a right-of-way (ROW) application for segments 8 and 9 of the Gateway West transmission line project.

Rocky Mountain Power and Idaho Power have submitted a revised application and revised plan of development for segments 8 and 9. The BLM determined that this new information warrants additional analysis and public review under the National Environmental Policy Act.

text box: Land use planning

thumbnail map showing revised proposed routes for segments 8 and 9

aerial view of Cove Rec site

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lattice transmission tower against the blue sky


  transmission line towerREAD | 2013 Final EIS

 SCHEDULE at a glance
¦ Notice of Intent  09.19.2014
¦ Scoping  closed 10.24.2014
Draft Supplemental EIS
  Public comment
  Final Supplemental EIS
  Protest period
  Record of Decision

Segments 1-7 and 10 
The BLM has authorized routes for these segments. The BLM-Wyoming website has more information.

Mailing List
Join the mailing list to receive updates and announcements about the supplemental EIS.

Proponents' website
The Rocky Mountain Power–Idaho Power website for the Gateway West project has additional information.