Work on Western, University to Repair Transmission Line

Seattle City Light wants you to know of some urgent work about to start at the intersection of Western Avenue and University Street to repair a major electricity transmission line that is leaking mineral oil.

Seattle City Light wants you to know of some urgent work about to start at the intersection of Western Avenue and University Street to repair a major electricity transmission line that is leaking mineral oil.

The utility expects considerable noise will be created by the work, as well as temporary traffic and parking disruptions. The work will be done during daytime hours, if at all possible, and is being overseen by the city and Washington State Department of Transportation. No disruption to electical service is expected.

On Friday, Oct. 29, workers for the Frank Coluccio Construction Co. will make cuts in the concrete at that intersection. On Monday, Nov. 2, they will begin excavating to locate a leak of insulating mineral oil in a major electrical transmission line between City Light’s Massachusetts Street and Union Street Substations. The mineral oil is non-toxic. It is believed the leak is occurring where a repair was made to the line about 15 years ago. The leaking line is already de-activated as part of the work to relocate power lines for the Alaskan Way Viaduct project.

For more information, contact Mike Eagan at (206) 615-1691 or mike.eagan@seattle.gov.