New transmission line enhances electric system reliability for customers

Construction slated to finish by the end of the year and begin delivering energy by 2018.

EPHRATA, Wash. – Throughout the upcoming weeks, travelers on State Route 17 (SR 17) between Moses Lake and Ephrata will see crews working on the installation of a new transmission line. The 115 kilovolt (kV) transmission line will connect Rocky Ford Substation, located just north of SR 17 near Rocky Ford Creek, with the Dover Substation

located in northeast Moses Lake on Patton Blvd. The line, comprised of 143 single pole structures, will run approximately eight miles along the north side of SR 17.

The completed project delivers improved reliability for customers in Moses Lake and the greater Grant County area, enhancing Grant PUD’s ability to restore service to homes and

businesses in the event of an outage. This project also allows the utility to meet growing electric demands from customers. The new transmission line is estimated to be constructed by the end of the year and energized in early 2018.  Once completed, the project is estimated to cost $7.95 million.

“A resilient transmission system is a key element of our local electric grid. We’re committed to enhancing this critical link between regional power sources and our communities,” said Grant PUD Public Affairs Officer, Ryan Holterhoff.  “As our communities grow, we are continually looking for ways to improve service reliability to better power our customer’s way of life.”

Drivers on SR 17 shouldn’t expect any uncommon traffic slowdowns during the construction period. Crews working on the transmission line will typically be far enough off the highway as to not disrupt traffic flow. A permanent, gravel access road parallel to SR 17 along the line’s route will be installed and work will take place along this new access road.

Grant PUD began exploring options for this new transmission line in 2012 and in the following year launched a series of public meetings regarding the project.  As a part of those meetings, customers participated in the process to review various social and environmental impacts of the new transmission line and the preferred route. Based in part on public feedback, the current route was selected.

The red line shows the new transmission route.

The red line shows the new transmission route.

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Established by local residents over 75 years ago, Grant PUD generates and delivers energy to millions of customers throughout the Pacific Northwest. What began as a grassroots movement of public power has evolved into one of the premiere providers of renewable energy at some of the most affordable rates in the nation. For more information visit or follow us on Facebook and Twitter.


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