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.

Part of NEPA analysis is determining which Federal laws, regulations 
and policies
apply to the proposed action being analyzed.  The BLM is responsible for ensuring that its decisions comply with all applicable 
laws and policies and pursuant regulations.

Among the laws that apply to processing the proposal for Gateway 
West segments 8 and 9 are the Federal Land Policy Management Act, 
the Clean Water Act, the Migratory Bird Treaty Act, the Endangered 
Species Act, the National Historic Preservation Act and Public Law 
103-64, which established the Snake River Birds of Prey NCA.

Google Earth image of powerline crossing the Snake River in southern Idaho

 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

transmission line towerREAD | Scoping Report

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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.