Gateway West Transmission Line

The BLM has authorized siting on Federal lands eight of the 10 segments that comprise the Gateway West transmission line. Visit the BLM-Wyoming website for information on Segments 1 through 7 and 10.

For the remaining two segments – 8 and 9 – the BLM will conduct additional environmental analysis of new information on routing options and potential mitigation and enhancement measures for lands that would be impacted by authorizing these two segments. 

Information on authorization of segments 8 and 9 is found on this website.

In June 2014, the Boise District Resource Advisory Council reported on options for siting segments 8 and 9 and on a mitigation and enhancement portfolio proposed by Idaho Power and Rocky Mountain Power.  

The companies have revised their right of way (ROW) application and Plan of Development (POD) for segments 8 and 9 in response to the RAC reports. 

The BLM will conduct additional environmental analysis of the revised application and POD, 
which represent significant new information, 
with opportunities for full public involvement 
and comment.


sketch diagram of a transmission line tower


graphic button link to interactive project map

  Report on route options | Report on M&E Portfolio
 Meeting notes : presentation to RAC (June.05.2014)

 revised Plan of Development | August.2014
proposed M&E Portfolio | August.2014
revised Application (SF-299) | August.2014

Reference Documents |

Public Law 103-64, establishing 
the Birds of Prey National Conservation Area 

Birds of Prey NCA Resource Management Plan (2008) 

BLM Manual Sec. 6100 :: National Landscape Conservation System Management 

BLM Manual Sec. 6220
:: National Monuments, National Conservation Areas and Similar Designations

BLM Manual Sec. 1794 (Draft) :: Regional Mitigation | Instruction Memorandum No. 2013-142 

Secretarial Order No. 3330 | Oct.31.2013 
Improving Mitigation Policies & Practices of the Dept. of the Interior

Idaho Infrastructure Development Map ("Conflict Map")

Westwide Energy Corridor designation | under Energy Policy Act of 2005 (Sec. 368)