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Project Details

1st Ave South/Railroad Way South Duct Bank Install

Posting Date: 10/31/2019                

Contact: Chau Luu - Senior Electrical Service Representative

Phone: (206) 386-1671

Project Update (10/31/2019)

Crews have completed the first 100' section of duct bank work. This project will resume on Monday, November 4th. However, due to the start of the State Route 99 tunnel tolling on Monday, November 9th, the 1st Avenue South project will be paused until Monday, November 25th.

Project Overview

Seattle City Light crews are needing to complete the final 400 feet of trench work on 1st Avenue South, between South Royal Brougham Way and Railroad Way South. Crews will be installing a new electrical duct bank. This work is needed to upgrade aging electrical infrastructure in the SODO and Pioneer Square areas.

Construction Work Area

Project Benefits

This project will replace aging electrical infrastructure and increase electrical reliability for the SODO and Pioneer Square areas.

Project Impacts

  • Crews will work on the west side of 1st Avenue South, occupying both southbound lanes for duct bank excavation. Southbound traffic will merge with the northbound lanes on 1st Avenue South.
  • Work will not occur two hours before and after major Pioneer Square/South of Downtown (SODO) events.
  • Noise is expected during construction from jackhammering and heavy equipment.
  • Some parking will be restricted on 1st Avenue South for truck staging and equipment storage.
  • Crews will maintain access to driveways for businesses.
  • Maintenance power outages are not anticipated for this work.


Construction Start: Early November 2019

Duration: Approximately three to four months

Daily Work Schedule: Mon-Fri: 9 a.m. - 3 p.m.; weekends: 9 a.m. - 6 p.m

Alternate Contact: -

Alternative Contact Phone:

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