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Oregon Department of Energy

Boardman to Hemingway Transmission Line

Facility Details
Status details
Location description
Applicant/Certificate holder
  
ODOE contact
  
Applicant/Certificate holder contact
  
The Boardman to Hemingway Transmission Line is an approximately 270.8-mile-long single-circuit 500-kV electric transmission line that crosses five counties in Oregon, Morrow, Umatilla, Union, Baker, and Malheur counties. The facility includes roads, communication stations, the Longhorn Station, and temporary construction areas.
Approved/Under Construction. 

On April 29, 2026, the Department received ADR 001 and 011. ADR 001 sought Department concurrence of a 13.1 acre micrositing corridor expansion for a change in 1.05 miles of access road in Morrow County. ADR 011 sought Department concurrence on a 0.45-mile new road segment in Baker County. On June 12, 2026, the Department issued its determination concurring that the changes can occur based on compliance with the terms and conditions of the Second Amended Site Certificate and would not require review through the Council's site certificate amendment process. This determination is available in the Project Timeline below.  

 On June 5, 2026, the Department received ADR 003. ADR 003 sought Department concurrence of a 30.2 acre micrositing corridor expansion to allow shifting of: three structure locations, a pulling and tensioning site and new road in Baker County. On July 23, 2026, the Department issued its determination concurring that the changes can occur based on compliance with the terms and conditions of the Second Amended Site Certificate and would not require review through the Council's site certificate amendment process. This determination is available in the Project Timeline below.  

The ADRs are available in the “Project Timeline" below. The Department's determination on ADR 001 and 011, and 003 will be announced at the July 24, 2026 Council meeting. 

Morrow, Umatilla, Union, Baker, Malheur, Owyhee (Idaho) counties.

Idaho Power CompanySarah EstersonJoe Stippel

Project Timeline

Milestone
  
Additional Documents
Display Date
  
Link
  
Name
  
Name
  
<div style='text-align:left !important'>Notice of Intent</div>
07/15/2010Notice of IntentNotice of Intent
<div style='text-align:left !important'>Second Amended Project Order</div>
07/26/2018Second Amended Project OrderSecond Amended Project Order
<div style='text-align:left !important'>Complete Application (Large files)</div>
Contents of the Application

Exhibit B (Main)
Exhibit B (Attachments B1-B4)
Exhibit B (Attachments B5 Part 1)
Exhibit B (Attachments B5 Part 2)
Exhibit B (Attachments B6-B7a)
Exhibit B​ (Attachments B7b)
Exhibit H (Part 1)
Exhibit H (Part 2)
Exhibit I (Part 1)
Exhibit I (Part 2)
Exhibit J (Main Part 1)
Exhibit J​ (Main Part 2)
Exhib​it J (Main Part 3)
Exhibit J (JPA Part 1)
Exhibit J (JPA Part 2)
Exhibit J​ (JPA Part 3)
Exhibit J​ (JPA Part 4)
Exhibit J (Wetland Delineation Part 1)
Exhibit J​ (Wetland Delineation Part 2)
Exhibit J (Wetland Delineation Part 3)
Exhibit J (Wetland Delineation Part 4)
Exhibit J (Wetland Delineation Part 5) 
Exhibit J (Wetland Delineation Part 6)
Exhibit N (Part 1)
Exhibit N​ (Part 2)
Exhibit P1 (Part 1 Main to Attachment P1-6)
Exhibit P1 (Part 2a Attachment P1-7A)
Exhibit P1 (Part 2b Attachment P1-7A)
Exhibit P1 (Part 3 Attachment P1-7B)
Exhibit P1 (Part 4a Attachment P1-8)
Exhibit P1 (Part 4b Attachment P1-8)
Exhibit P1 (Part 5 Attachment P1-9)
Exhibit P2 (GRSG)
Exhibit P3 (Elk)
​
09/28/2018Complete Application (Large files)Complete Application (Large files)
<div style='text-align:left !important'>Additions to Complete Application</div>
03/28/2019Additions to Complete ApplicationAdditions to Complete Application
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2022-09-27-Final-Order-on-ASC.pdf'>Final Order</a></div>
Final Order with Attachments​​​
09/27/2022/energy/facilities/Facilities%20library/2022-09-27-Final-Order-on-ASC.pdfFinal OrderFinal Order
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2023-06-08-B2H-AMD1-RFA1.pdf'>Complete Request For Amendment 1 (RFA1)</a></div>
​RFA1 Attac​hm​ent​s and Figures​​​​​
06/08/2023/energy/facilities/Facilities%20library/2023-06-08-B2H-AMD1-RFA1.pdfComplete Request For Amendment 1 (RFA1)Complete Request For Amendment 1 (RFA1)
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2023-09-22-B2HAMD1-Final-Order-2023-09-22_Signed.pdf'>Final Order on RFA1</a></div>
​Attachments 2 through P1-6​
09/22/2023/energy/facilities/Facilities%20library/2023-09-22-B2HAMD1-Final-Order-2023-09-22_Signed.pdfFinal Order on RFA1Final Order on RFA1
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2023-09-22-B2HAMD1-Attachment-1-First-Amended-Site-Certificate-Executed.pdf'>First Amended Site Certificate</a></div>
09/22/2023/energy/facilities/Facilities%20library/2023-09-22-B2HAMD1-Attachment-1-First-Amended-Site-Certificate-Executed.pdfFirst Amended Site CertificateFirst Amended Site Certificate
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2014-04-11-B2H-RFA2-Main.pdf'>Request for Amendment 2 (RFA2)</a></div>
​RFA2 Attachments/Figures​​
04/11/2024/energy/facilities/Facilities%20library/2014-04-11-B2H-RFA2-Main.pdfRequest for Amendment 2 (RFA2)Request for Amendment 2 (RFA2)
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2024-08-23-B2HAMD2-Final-Order.pdf'>Final Order on RFA2</a></div>
​Final Order on RFA2 Attachments​
08/23/2024/energy/facilities/Facilities%20library/2024-08-23-B2HAMD2-Final-Order.pdfFinal Order on RFA2Final Order on RFA2
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2024-08-23-B2HAMD2-Attachment-1-Second-Amended-Site-Certificate.pdf'>Second Amended Site Certificate</a></div>
08/23/2024/energy/facilities/Facilities%20library/2024-08-23-B2HAMD2-Attachment-1-Second-Amended-Site-Certificate.pdfSecond Amended Site CertificateSecond Amended Site Certificate
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2025-12-12-B2H-ADR.pdf'>Amendment Determination Request (ADR 004)</a></div>
Supplemental Information​
12/12/2025/energy/facilities/Facilities%20library/2025-12-12-B2H-ADR.pdfAmendment Determination Request (ADR 004)Amendment Determination Request (ADR 004)
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-03-27-B2HOPS-ODOE-Determination-on-ADR004.pdf'>Department Determination on ADR 004</a></div>
03/27/2026/energy/facilities/Facilities%20library/2026-03-27-B2HOPS-ODOE-Determination-on-ADR004.pdfDepartment Determination on ADR 004Department Determination on ADR 004
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-04-06-B2H-ADR-002.pdf'>Amendment Determination Request (ADR 002) </a></div>
04/06/2026/energy/facilities/Facilities%20library/2026-04-06-B2H-ADR-002.pdfAmendment Determination Request (ADR 002) Amendment Determination Request (ADR 002)
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-04-08-B2H-ADR-006.pdf'>Amendment Determination Request (ADR 006)</a></div>
04/08/2026/energy/facilities/Facilities%20library/2026-04-08-B2H-ADR-006.pdfAmendment Determination Request (ADR 006)Amendment Determination Request (ADR 006)
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-04-29-B2H-ADR-001.pdf'>Amendment Determination Request (ADR 001)</a></div>
04/29/2026/energy/facilities/Facilities%20library/2026-04-29-B2H-ADR-001.pdfAmendment Determination Request (ADR 001)Amendment Determination Request (ADR 001)
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-04-29-B2H-ADR-011.pdf'>Amendment Determination Request (ADR 011)</a></div>
04/29/2026/energy/facilities/Facilities%20library/2026-04-29-B2H-ADR-011.pdfAmendment Determination Request (ADR 011)Amendment Determination Request (ADR 011)
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-05-08-B2HOPS-ODOE-Determination-on-ADR-002.pdf'>Department Determination on ADR 002</a></div>
05/08/2026/energy/facilities/Facilities%20library/2026-05-08-B2HOPS-ODOE-Determination-on-ADR-002.pdfDepartment Determination on ADR 002Department Determination on ADR 002
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-05-20-B2HOPS-ODOE-Determination-on-ADR-006.pdf'>Department Determination on ADR 006</a></div>
05/20/2026/energy/facilities/Facilities%20library/2026-05-20-B2HOPS-ODOE-Determination-on-ADR-006.pdfDepartment Determination on ADR 006Department Determination on ADR 006
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-06-05-B2H-ADR-003.pdf'>Amendment Determination Request (ADR 003)</a></div>
06/05/2026/energy/facilities/Facilities%20library/2026-06-05-B2H-ADR-003.pdfAmendment Determination Request (ADR 003)Amendment Determination Request (ADR 003)
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-06-12-ODOE-Determination-on-ADR-001-and-011.pdf'>Department Determination on ADR 001 and 011</a></div>
06/12/2026/energy/facilities/Facilities%20library/2026-06-12-ODOE-Determination-on-ADR-001-and-011.pdfDepartment Determination on ADR 001 and 011Department Determination on ADR 001 and 011
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-07-23-ODOE-Determination-on-ADR-003.pdf'>Department Determination on ADR 003</a></div>
07/23/2026/energy/facilities/Facilities%20library/2026-07-23-ODOE-Determination-on-ADR-003.pdfDepartment Determination on ADR 003Department Determination on ADR 003
B2H Record and Selected Contested Case Files

(One Drive)


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