Winter in North Cascades National Park
Seattle City Light DEBRA SMITH, General Manager and CEO
Denny Substation Project
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With two quarters of 2018 already behind us, it's hard to contain our excitement. Every day brings us closer to project completion! Recent noteworthy milestones include: starting the energization process in the substation, restoring and re-opening John Street, and installing new sidewalks and curb ramps throughout the Cascade Neighborhood. Community benefits that took take shape this quarter include the off-leash areas, handrails, and the waterproof membrane for the elevated walkway.

If you've followed along since the beginning of the project, the most anticipated times are yet to come.

Denny Way Daytime Lane Closures Continue

Periodic daytime closures of the right lane of westbound Denny Way between Stewart Street and Minor Avenue N. and the adjacent sidewalk will continue. The right lane will be closed at times between 9 a.m. and 3 p.m., Monday through Friday. The sidewalk will be closed around-the-clock. During these closures, crews will be installing landscaping, lighting, Silva Cells, and building the sidewalk.

Ongoing Work on Community Features at the Substation Site

Work on the off-leash area continues, community spaces are progressing, and Silva Cells have been installed around the site for future landscaping. Inside the substation, equipment testing and finishing work inside the substation's buildings continues. Work hours are 7 a.m. to 5 p.m., Monday through Friday and 9 a.m. to 5 p.m. on Saturday.

Denny Network

In the third quarter of 2018, crews will continue to restore neighborhood streets and sidewalks as duct bank installation nears completion. Other upcoming visible work in and around the substation includes completing alley concrete paving on the east side of the substation, wrapping up work on the elevated walkway and installing project art. We will also continue to advance the Cascade Neighborhood Street Improvements.

Over the next month, the Denny Network Project is working in the following locations:

Denny Triangle Neighborhood
  • 6th Avenue and Virginia Street intersection
  • 6th Avenue between Stewart and Lenora streets
  • Virginia Street between 5th and 6th avenues
South Lake Union Neighborhood
  • Fairview Avenue N and Harrison Street intersection
  • Fairview Avenue N between Harrison and John streets
  • Westlake Avenue N and Thomas Street intersection
  • 9th Avenue N between Mercer and Republican streets
  • Republican Street between Minor Avenue N and Fairview Avenue N
  • Republican Street between Terry Avenue N and Westlake Avenue N
  • Harrison Street between Westlake Avenue N and 9th Avenue N
  • Thomas Street and Fairview Avenue N intersection
  • Thomas Street and Boren Avenue N intersection
  • Thomas Street between Westlake Avenue N and 9th Avenue N
  • Thomas Street between Fairview Avenue N and Boren Avenue N
  • Thomas Street and Terry Avenue N intersection
  • Thomas Street between Terry Avenue N and Westlake Avenue N
  • John Street between Fairview Avenue N and Minor Avenue N
  • John Street between Boren Avenue N and Fairview Avenue N

What to Expect During Network Construction

  • Closures of sidewalks and crosswalks should be expected in work areas
  • Business and pedestrian access will be maintained wherever possible
  • Lane restrictions and some traffic and pedestrian detours
  • Typical weekday work hours from 6 a.m. to 7 p.m.
  • Some weekend, night, and early morning work
  • Noise and vibrations during high-impact work

Updated: September 2018

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