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Arroyo/South Arbor Heights Conduit Installation Project Begins This May

An example of conduit work

Starting in May 2018, Seattle City Light will be working in the Arroyo/South Arbor Heights area to install new electrical conduits, vaults and streetlights. This work is needed to replace aging underground, direct buried cables in the neighborhood.

Construction will start at California Avenue SW, between SW 106th and 107th streets. To follow the progress of this work, please visit our website.

What You Can Expect:

City Light crews will be working in multiple locations at a time. Construction will start at California Avenue SW, between SW 106th and 107th streets. Customers can expect temporary parking and traffic restrictions. Crews will work to limit traffic impacts.

Example of crews trenching for new conduit.

Trenching for conduits will occur in the public right-of-way (e.g. street and planting strips). Some sidewalk and driveway aprons will be affected. Trenches will be covered with steel plates or fenced off outside of construction work hours.

Maintenance power outages are required to do the work safely. Affected residents will be notified in advance before any outage.

Timing & Coordination:

  • Civil and electrical construction is estimated to last approximately 18-20 months. Additional streetlight work will follow.
  • Daily work hours are from Mondays through Fridays, 9 a.m. to 3 p.m., and weekends from 9 a.m. to 6 p.m. Construction could extend beyond these hours, as needed.

Customers can contact David Mannery, Senior Electrical Service Representative at (206) 386-4245 or

Visit Seattle City Light’s “At Work in Your Neighborhood” website for the latest updates on this project: