USA logoAn Official Website of the United States Government

You are here

Energy Gateway South Transmission Project

Project Information
Sector: Electricity Transmission
Project Category: 
FAST-41 Covered Projects
Project Status: 

The Applicant proposes to construct, operate, and maintain a 500-kilovolt (kV), overhead, single-circuit, alternating-current transmission line beginning near Medicine Bow, Carbon County, Wyoming, at the Aeolus Substation, planned as part of Gateway West, and would extend south and west to Clover Substation (constructed as part of Gateway Central) near Mona, Juab County, Utah, an approximate distance of 425 miles (230 miles on BLM lands). The Project includes two series compensation stations at points between the Aeolus and Clover substations to improve transport capacity and efficiency of the transmission line. Equipment to accomodate the 500kV transmission line would be installed at the Aeolus and Clover substations.

The Project is designed to provide up to 1,500 megawatts (MW) of capacity to meet current and forecasted needs of the Applicant's customers. Additionally, two existing 345kV transmission lines between the Clover and Mona substations, approximately 3 miles apart, would be rebuilt to increase capacity as part of the Project. The lines would be rebuilt in the existing rights-of-way. Part of the Project, the existing Mona to Huntington 345kV transmission line, which passes in a north-south direction to the east of the Clover Substation, would be rerouted through Clover Substation.

Map of project (pages 2-93 and 2-95):

Permitting Timeline

Action Agency Target Completion Status
Right-of-Way Authorization (DOI-BLM)
Initial application received
Completed application received
Issuance of decision for permit/approval.
Complete 01/23/2017
Target: 01/31/2017
Notice to proceed
Review Terminated with no decision
Department of Interior 01/31/2017 Complete 01/23/2017
Environmental Impact Statement (EIS)
Issuance of Notice of Intent to prepare an Environmental Impact Statement (EIS)
Official Notice of Availability of a Draft EIS published in the Federal Register
Official Notice of Availability of a Final EIS published in the Federal Register
Official Notice of Availability of a Supplemental Draft EIS published in the Federal Register
Official Notice of Availability of a Supplemental Final EIS published in the Federal Register
Issuance of Record of Decision or combined Final EIS / Record of Decision
Complete 12/13/2016
Target: 12/09/2016
Issuance of an Amended Record of Decision
Department of Interior 12/09/2016 Complete 12/13/2016
Submit Feedback >