The $15 million project will replace the existing 115kV and 230kV transmission lines and structures, and help increase the safety and reliability of the regional high-voltage electric transmission system.
Puget Sound Energy (PSE) noted that its existing power lines in the basin are supported by wooden H-frame poles, which are not designed for use in the standing tidal water. The utility noted that, over time, environmental conditions have deteriorated the frames.
Sue McLain, senior vice president of operations at PSE, said: Not only will replacing the unstable frames with sturdy poles and stringing new wire enhance the safety and reliability of our region’s transmission system, it will also protect the fragile surrounding wetland habitat from potential damage in the future.
