Cornville - CyrilTransmission Line Rebuild Project

Public Service Company of Oklahoma (PSO) representatives plan to invest approximately $20 million to upgrade the electric transmission system in Grady and Caddo counties. Crews plan to begin construction in summer 2023 and conclude in early 2024.

This project involves rebuilding about 18 miles of power line with steel single-pole structures and upgrading area substations to increase electric reliability for customers, reduce maintenance frequency and strengthen the line against weather and other environmental impacts.

Project Updates

PSO crews and contractors plan to perform surveying work in fall 2021 within the utility's right-of-way along and adjacent to the line route. Some of the survey work may require crews to place stakes and ribbon within the company's easement* on your property. Crews plan to use existing streets and pathways wherever possible to access the easement area. PSO takes responsibility should any damage result from the surveying work.

* Company representatives plan to rebuild the power line in the existing right-of-way, which may require acquiring new or updating existing property easements. Easements are defined land rights that property owners grant the utility to allow for the safe construction, operation and maintenance of the power line.


Project Map (PDF)


Project Timeline



PSO representatives plan to use single steel poles.

Structure Height: Approximately 100 feet
Right-of-Way Width: Approximately 100 feet
Typical Distance Between Structures: 300 feet

* Exact structure, height and right-of-way may vary


Project Fact Sheet Access Roads Field Activities

Public Service Company of Oklahoma serves 538,000 customers in Oklahoma.

Matthew Hames

Project Outreach Specialist

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