Central Waterfront Transmission Line Relocation Project
In 2008, Seattle City Light began work to relocate transmission lines along Seattle’s waterfront before Alaskan Way Viaduct removal, Waterfront Seattle and new Alaskan Way construction.
Transmission lines near the sports stadiums and Pioneer Square were relocated before the southernmost mile of the viaduct was demolished in 2010. In 2012, Seattle City Light completed the relocation of a section of these transmission lines along the central waterfront, moving them to a permanent location underground between Yesler Way and the Union Street substation. In October 2017, Seattle City Light completed the permanent relocation of Phase 2, the section of 115 kV transmission lines that run from Yesler Way to South King Street.
The project was a vital preliminary step in the transformation of the Central Waterfront and was completed in early June 2018.
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