69kV line projects boost reliability
SRP, a major provider of electricity to the Valley, is proposing to build new 69,000 volt
(69kV) subtransmission lines to meet the area's growing demand for power and provide
better electric reliability to the community.
You can view our overview map to see the locations of all current and proposed 69kV projects. You can also view a diagram showing how SRP electricity gets to your home.
- Queen Creek: Morcom Loop
SRP is conducting a collaborative public process to determine the most cost-effective and beneficial way to enhance the 69kV delivery system in Queen Creek. Find out more.
These 69kV projects have moved through the public process phase and are now in design:
- Mesa: Browning-McPherson line
A new power line will connect Browning substation at Signal Butte, south of Guadalupe Road, to the future McPherson substation at Ray and Mountain roads. Find out more about this project.
- Mesa/Apache Junction: Browning-Scussel line
A new power line will connect Browning substation at Signal Butte, south of Guadalupe Road, to the planned Scussel substation near Lost Dutchman Heights. Find out more about this project.
- Pinal County: Quail-Meacham-Watkins line
A new power line will connect the future Watkins and Meacham substations to the existing electrical system in northeastern Pinal County. Find out more about this project.
- Pinal County: Quail-Shipley line
A new power line will connect the Quail substation at Quail Run Lane and Bella Vista Road to the future Shipley substation at Cooper Road and Judd Road. Find out more about this project.
- Pinal County: Webber-Witherspoon-Watkins line
The new power line will link Webber substation (near Bella Vista Road and Hunt Highway) to the planned Witherspoon substation (near Hunt Highway and Magma Road) and to the planned Watkins substation (near the railroad and Judd Road). Find out more.
- Pinal County: Dinosaur-Hunt line
A new overhead power line will connect the Dinosaur substation to the Hunt substation on Meridian Road, near Hashknife Draw Road. Find out more.
Typically, new 69kV lines are built on a mix of steel and wood poles approximately 65 feet tall. The span between poles would be 220 feet to 400 feet, depending upon the location
of any existing power lines. In some cases, rebuilding an existing 69kV line to double
circuit can eliminate the need for a new pole line.
SRP does not, as usual practice, place 69kV lines underground. Standard construction for
69kV lines is overhead due to the time and expense of burying lines of this voltage. In
addition, there are often underground conflicts that must be considered, including:
- storm drains
- irrigation
- 12kV electric lines
- telephone
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69kV lines traverse neighborhoods across the Valley. Putting them underground
would be very costly, and the impact on customer electric prices would be significant.
Please call SRP at (602) 236-2872 or send us an email for more information or to share your comments.