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Boardman to Hemingway Transmission Line

Proposed Facility: Idaho Power Company proposes to construct approximately 300 miles of primarily 500-kilovolt transmission line between Boardman, Oregon and the Hemingway Substation in southwestern Idaho. In some locations, IPC has identified one or more alternate corridor segments for a portion of its proposed corridor. The proposed siting corridor is 500 feet wide, although the final transmission line right-of-way will usually be only 250 feet wide.

Status (Proposed): Idaho Power Company submitted the preliminary application for site certificate on February 28, 2013.

Location: The proposed project would begin near Boardman, Oregon and terminate at the Hemingway substation located in southwestern Idaho. The proposed route would cross Baker, Malheur, Morrow, Umatilla, and Union counties in Oregon, as well as Owyhee County in Idaho.

Applicant: Idaho Power Company

Contact Information 

Mitch Colburn​
Max Woods
P.O. Box 70
550 Capitol St. NE
Boise, ID 83707
Salem, OR 97301-3737
To Receive Updates by E-mail:
·          To receive e-mail notices about this project, please click here​.
·          To receive e-mail notices for other projects or general EFSC announcements, please go here.

About Oregon’s siting process:

·          For more information about Oregon’s siting process outlined in the table below, please go here.
For more information:
·          To visit the applicant’s project website, please go here.
Project Status (Table details will be updated as project progresses)
Notice of Intent: The notice of intent provides information about the proposed energy facility and its potential impacts. The NOI enables the department and other government agencies to identify issues and determine staffing needs for the review process. It provides the first opportunity for public participation in the process.
Joint scoping notice: Eight meeting locations along route
July 15, 2010
Aug. 2-12, 2010
May 9, 2011
Project Order: The project order is issued by ODOE and identifies applicable statutes, rules, local ordinances and other regulations. It also describes any additional information needed for the application. The project order defines the analysis areas over which the applicant must assess the facility’s potential impacts.
Dec. 22, 2014
Application Review: An application for a site certificate includes a detailed description of the proposed facility and the anticipated impacts on the site and surrounding area. The applicant must address the council’s application requirements and show how the proposed facility complies with the council’s standards. An application is preliminary until ODOE finds it complete. A complete application is required for the council to make findings and impose conditions on all applicable council standards. ODOE may request additional information as needed during its review of the complete application.
Preliminary application received

The application can be reviewed at:
  • Baker County Planning Dept., 1995 Third St., Baker City
  • Malheur County Planning Dept., 251 B St. W., Vale
  • Morrow County Planning Dept., 205 NE Third St., Irrigon
  • Umatilla County Planning Dept., 216 SE Fourth St., Pendleton
  • Union County Planning Dept., 1001 Fourth St., Suite C, La Grande
  • Oregon Department of Energy, 625 Marion St. NE, Salem
Feb. 28, 2013
Complete application
To be determined
Public information meeting
Public notice
To be determined
Draft Proposed Order and Public Hearing: The draft proposed order includes proposed findings of fact, recommended conclusions on compliance with council standards and recommended site certificate conditions for construction, operation and retirement of the facility. The DPO public hearing is usually held by EFSC and facilitated by an independent hearing officer.
Draft proposed order
To be determined
*Public hearing
Public notice
To be determined
Deadline for public comments to be received by ODOE, to be included in the record at the Draft Proposed Order hearing
To be determined
*Please Note: Failure to raise issues in person or in writing at this hearing precludes participation in the subsequent contested case and the right to appeal council’s final decision. Issues must be raised with sufficient specificity to afford the council, the Department of Energy and the applicant an adequate opportunity to respond, and must include a statement of facts that support the person’s position on the issue.
Proposed Order: After the public hearing, the council reviews the draft proposed order in a public meeting. No public comments on the project are taken at this time. Based on the comments of the council, public comment on the record of the public hearing and consultation with other governmental agencies, the department then issues a proposed order.
Council meeting
Public notice
To be determined
Proposed order
To be determined
Contested Case: A contested case proceeding is mandatory under ORS 469.370(5). The council appoints an independent hearing officer to conduct the proceeding. Aside from the applicant and the Oregon Department of Energy, persons wanting to participate in the contested case proceeding must request party status from the hearing officer. Notice of proposed order and contested case is sent only to those who participated in person or in writing at the draft proposed order hearing.
Notice of proposed order and contested case
To be determined
Contested case proceeding
To be determined
Proposed contested case order
To be determined
Final Order and Site Certificate: Following the contested case proceeding, the council decides whether to grant a site certificate. The council grants a site certificate if at least four members of the council agree that the application meets all council standards. The council issues its decision to grant a site certificate in a final order. No public comment is taken on this project at the council meeting.
Council meeting
Public notice
To be determined
Final order
To be determined
Site certificate
To be determined