Southline Transmission Project
The Southline Transmission Project is a proposed transmission line designed to collect and transmit electricity across southern New Mexico and southern Arizona. The project will consist of two segments:
- A new 240-mile, 345-kilovolt double-circuit transmission line between the existing substations at Afton, New Mexico, and Apache, Arizona.
- Upgrade of about 120 miles of existing transmission lines between the Apache and Saguaro substations in Arizona to a 230-kV double-circuit line.
Western is a joint lead agency with the Bureau of Land Management in preparing the environmental impact statement , or EIS, for the project.
For up-to-date information about the project, visit:
Project documents: