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Project Details Information

Release Date: 5/10/2012
Contact: Mark VanOss - Senior Public Relations Specialist
phone: (206) 684-3279
Alternate Contact: -
Work planned on: Beacon Hill H-Frame Replacement

City Light needs to replace some of the wooden structures (H-Frames) that transmit electricity on high voltage lines across I-5 due to their age as well as increasing electricity demand. The project will increase electrical reliability for customers.

City Light crews will begin building vaults and duct banks near and across South Bangor Street in the summer and fall of 2012. The portion of the project involving improving or building accesses, and building retaining walls, construction pads and pole foundations for the steel poles, pole installation, and electrical construction is scheduled to start during the spring or early summer of 2013 and end by fall. Pole installation will begin in late summer and early fall of 2013. Environmental mitigation activities, such as plant surveys, will continue for several years.

The project corridor extends from City Lights Creston-Nelson substation, located at 5300 South Bangor Street, proceeds west and downhill across Beacon Avenue South, Interstate Highway 5, the Union Pacific and Burlington Northern Santa Fe Railroads, and proceeds west to East Marginal Way South. All of this work will be within City Lights Transmission Right of Way and/or within City of Seattle or City of Tukwila street Right of Way.

11/25/2013 Update: All nine of the foundations have been constructed. The project has been temporarily suspended. We anticipate City Light crews will return to install the poles in the spring summer 2014.

Schedule: Summer 2012 - December 2014
Begin: Summer 2012
Duration: Approximately 30 months
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