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Welcome to the Denny Substation Project page, your portal to information about Seattle City Light's design, construction and associated elements of a new electrical substation, transmission line, and power distribution network necessary to serve areas of our growing city.

March 2014

The Denny Substation Project Draft Environmental Impact Statement (EIS) is out for review. This is an important opportunity to read about a major new electrical energy delivery project proposed by Seattle City Light - designed to serve South Lake Union and surrounding areas in Seattle for years to come. The project includes a major new electrical substation near Denny Way and Stewart Street, a transmission line from the new station south to an existing substation in the SODO neighborhood, and a network distribution system extending north of Denny Way.

The Draft EIS presents the results of environmental studies to date and comparison of project alternatives. Public comments on the Draft EIS will be accepted during the public review period starting March 27 and lasting through April 26. Seattle City Light will carefully consider and respond to all comments before preparing a Final EIS to forward to elected officials with project recommendations. Comments will be helpful in refining the report and ultimately in shaping the project.

View the Denny Substation Draft Environmental Impact Statement.

Draft Environmental Impact Statement release: City Light will release the Draft EIS in spring 2014 with notice of availability posted on the website, mailed, or emailed to parties of record, and with other legal notices posted as required. To provide the public with opportunities to comment, there will be a public hearing and 30-day comment period soon after the release.

Substantial completion of substation design: City Light will reach 90-percent design of the substation and complete the design of the distribution system in 2014. A public benefits package as part of the petition proposing the vacation of Pontius Ave N between Denny Way & John St will be presented to both the Seattle Design Commission and the City Council in 2014. The final recommendation for acceptance of the public benefits package would be made by the City Council in order for the petition to be approved in 2014.

Ongoing public involvement: City Light will continue to reach out to the public in 2014, with another public meeting to get input on design, more community forum meetings, and briefings with groups and organizations.

Public art installations and performance: The future substation site will be activated in early 2014 when the curators launch the temporary arts program. Stay tuned for performance and visual art and others surprises. City Light will also unveil what the project artists have in store for the substation's permanent artwork. Stay tuned!

Pre-construction outreach: Construction does not start until 2015, but City Light will be ramping up its construction outreach efforts in 2014 to ensure you know what to expect. Stay tuned for opportunities to learn more and stay connected in 2014.

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