Superior-Silver King 115kV relocation project

SRP received a request from Resolution Copper Mining, LLC, ("Resolution") a private property owner and SRP customer, to relocate a portion of the existing Superior-to-Silver King 115kV transmission line, near the Town of Superior. The relocation would occur entirely on Resolution's private property. In response to Resolution's request, SRP is proposing to relocate approximately one mile of the existing 115kV line to the northwest, adjacent and parallel to an existing transmission line corridor.

Arizona Corporation Commission grants CEC

On October 4, 2012 the Arizona Corporation Commission voted unanimously (5-0) to confirm the CEC for the Superior-Silver King 115kV line.

SRP required to obtain a CEC

In June 2012, SRP and its consultant, URS Corporation, filed an application for a Certificate of Environmental Compatibility (CEC) with the Arizona Corporation Commission, as required by State statute. The CEC application includes environmental studies and a summary of the public outreach activities.

Line Siting Committee recommends a CEC

At a public hearing held on August 22, 2012, the Arizona Power Plant and Transmission Line Siting Committee recommended that SRP be granted a CEC.

Image of an existing wooden power pole that exists along the Superior-Silver King route. The structure features two wooden poles, to which a cross beam is mounted. Two sets of power lines run from the pole.

Existing 115kV structure

Public outreach

SRP held two open houses in Superior on April 17, 2012.


Contact us

Your comments regarding this project are welcome.

You may use our online comment form.

For more information about the project, please call (602) 236-2872 or (800) 380-6123.