Electrical Infrastructure Improvements Near First Avenue South and South Jackson Street

Starting as early as Thursday, August 3, Seattle City Light crews will begin a project to maintain the electrical reliability in Pioneer Square. Crews will excavate and replace underground electrical conduits (duct banks) and then pull in new electrical cable at vaults near South Jackson Street and First Avenue South. The work will start approximately one-half block east of First Avenue South and end at South Jackson Street’s intersection with it. The work is being done in coordination with the Center City Connector Streetcar project and will occur in three stages (see map below for details).

Map of project during Stage 1. It will last approximately 45 days and start as early as August 3.


Map of project during Stage 2. It will last approximately 30 days and is planned to start September 2017.


Map of project during Stage 3. It will last approximately 30 days and is planned to start October 2017.


Impacts and Mitigation Details:

There are no power outages expected during the course of this project.

Traffic, parking, and pedestrian impacts will occur near the work site to promote safety and accommodate equipment. Heavy equipment and trucks will be located at the work site.

Uniformed police officers will assist traffic and pedestrians, and excavated areas will be covered with steel plates during non-work hours.

Schedule and More Information:

The project’s planned start date is as early as August 3. During Stage 1, crews will work Monday to Friday from 9 a.m. to 3 p.m.

During Stages 2 and 3, planned for September and October respectively, crews will be working Saturday and Sunday from 9 a.m. to 6 p.m.

Visit Seattle City Light’s construction website for the latest updates on this project: 1st Ave. South and South Jackson Street Duct Bank or contact Percy Schlimm, Sr. Electrical Service Representative at (206) 386-1735 or percy.schlimm@seattle.gov