Broad Street Substation Upgrade Plans Available for Review

Seattle City Light is making improvements to the Broad Street Substation to increase the reliability of the regional transmission grid. City Light has developed a preliminary design for the improvements and will be holding an open house to present the design.

An aerial view of the proposed street vacation on Broad Street.

The design includes a proposal to vacate a small portion of the permanently closed Broad Street and Seattle requires public benefits in exchange for the loss of use of the public right-of-way. City Light will ask participants for feedback on a proposed set of public benefits.

The open house will be held from 5:30 to 7:30 p.m. on Nov. 8, 2017, at the following location:

Best Western Executive Inn
Blakely/Camano Room
200 Taylor Ave. N
Seattle, WA  98109

Project background: Broad Street Substation system improvements are necessary to meet energy demands of Seattle and our growing region, and to reduce the likelihood of widespread power outages.  Working in conjunction with similar equipment being installed at the Denny Substation, the Broad Street Substation will more reliably deliver power to customers. The new equipment at the Broad Street Substation will include inductors, capacitors and gas insulated switchgear. This combination of equipment will help reduce power outages by controlling and balancing the electrical load that travels through the regional grid.

More information on the Broad Street Substation Project can be found at: www.seattle.gov/light/broadsub

Seattle City Light is the 10th largest public electric utility in the United States. It has some of the lowest cost customer rates of any urban utility, providing reliable, renewable and environmentally responsible power to about 750,000 Seattle area residents. City Light has been greenhouse gas neutral since 2005, the first electric utility in the nation to achieve that distinction.

Denny Substation Construction Work Will Impact Denny Way Starting Oct. 14

Seattle City Light is advising drivers and commuters to prepare for five weeks of lane closures on Denny Way between Stewart St. and Minor Ave N, beginning Friday, Oct. 14. Crews will be installing underground utilities for the Denny Substation.

From Friday, Oct. 14, at 11 p.m., to Monday, Oct. 17, at 5 a.m., all lanes on Denny Way will be closed while crews restripe the roadway. After 5 a.m. on Monday, Oct. 17, Denny Way between Stewart St. and Minor Ave N will be reduced to one lane in each direction 24 hours per day, 7 days a week, for five weeks. On the weekend of Nov. 19 and 20, crews will close all lanes of Denny Way once again in order to restore the roadway to its normal configuration. All lanes on Denny Way will reopen on Monday, Nov. 21.

During the lane closures, travelers on Denny Way and Stewart St. should expect significant delays and are encouraged to use alternate routes. King County Metro Bus 8 will be directly impacted by the closures — the westbound Denny Way and Stewart Street bus stop will be temporarily closed. The eastbound bus stop will remain open, but riders should expect delays.

Seattle City Light is working with the Washington State Department of Transportation (WSDOT) and transit providers to inform travelers about the closures and to discourage the use of the Stewart Street exit from southbound I-5. Access to southbound I-5 from Yale Avenue will be maintained, but drivers should expect delays. Uniformed police officers will be on site to help direct traffic around the work zone.

Project Background: As part of the Denny Substation Program, Seattle City Light is building a new substation (Denny Substation) and underground electrical distribution network (Denny Network) and designing a transmission line (Denny-Massachusetts Transmission Line) that will ensure more reliable power delivery to customers in and beyond the South Lake Union and Denny Triangle neighborhoods. The new substation, located on Denny Way near Stewart St, will be City Light’s first and largest substation in 30 years. The Denny Substation Program will increase system-wide reliability and operational flexibility, achieving a major electrical system upgrade for the city of Seattle. For more information, visit the project website at: http://www.seattle.gov/light/dennysub/

Seattle City Light Celebrates Public Power Week

 

Starting Oct. 2 to Oct. 8, Seattle City Light will be joining more than 2,000 public utilities as it celebrates Public Power Week, hosted by the American Public Power Association.

Throughout the week, you will meet some of City Light’s hard-working staff, learn more about the utility’s history and find out more about what public power means to you. 

Follow the Seattle City Light Facebook account to participate in City Light’s personalized version of Public Power Week. With seven days full of content, videos and photos — the utility put together a guide (below), so you can follow along and celebrate Public Power Week!

 

Day #1 – “Substation Sunday”
Michael Clark, Seattle City Light’s Denny Substation Program Manager, explains how the Denny Substation is known as “The World’s Coolest Substation.”

 

 

Day #2 – “Meaningful Monday”
Seattle City Light General Manager and CEO, Larry Weis, starts the day off with an introduction of how important it is to be publicly powered.

 

 

Day #3 – “Tech Tuesday”
Meet the Seattle City Light Energy Advisors and learn more about the importance of energy conservation and other green-minded tips.

 

 

Day #4 – “Working Wednesday”
Seattle City Light lineworkers and interns share their rewarding experience of helping customers and the community while working for the utility.

 

 

Day #5 – “Throwback Thursday”
This #TBT is dedicated to the powerful history of Seattle City Light and being one of the first publicly-owned utilities in the nation.

 

 

Day #6 – “Future Friday”
Seattle City Light General Manager and CEO, Larry Weis, explains how the utility will move forward into the ever-changing industry.

 

 

 

Day #7 – “Safety Saturday”
It’s almost storm season, so time to brush up on your safety skills. Learn more safety tips from some of Seattle City Light’s Safety Team.

 

 

Denny Substation Construction to Cause Denny Way Lane Closures, Starting Oct. 14

Denny Substation construction zone.

Seattle City Light is asking travelers to prepare for five weeks of lane closures on Denny Way between Stewart St and Minor Ave N beginning Friday, Oct. 14. During this time, crews will be installing underground utilities for the Denny Substation.

From Friday, Oct. 14, at 11 p.m., to Monday, Oct. 17, at 5 a.m., all lanes on Denny Way will be closed while crews restripe the roadway. Starting at 5 a.m. on Monday, Oct. 17, Denny Way between Stewart St and Minor Ave N will be reduced to one lane in each direction 24 hours per day, 7 days a week, for four weeks. Over the weekend of Nov. 19 and 20, crews will close all lanes on Denny Way once again in order to restore the roadway to its normal configuration. All lanes on Denny Way will reopen on Monday, Nov. 21.

During the lane closures, travelers on Denny Way and Stewart St should expect significant delays and are encouraged to use alternate routes. King County Metro Bus 8 will be directly impacted by the closures—the westbound Denny Way and Stewart St bus stop will be temporarily closed. The eastbound bus stop will remain open, but riders should expect delays. Seattle City Light is working with the Washington State Department of Transportation (WSDOT) and transit providers to inform travelers about the closures and to discourage the use of the Stewart Street exit from southbound I-5. Access to southbound I-5 from Yale Avenue will be maintained, but drivers should expect delays.

Project Background: As part of the Denny Substation Program, Seattle City Light is building a new substation (Denny Substation) and underground electrical distribution network (Denny Network) and designing a transmission line (Denny-Massachusetts Transmission Line) that will ensure more reliable power delivery to customers in and beyond the South Lake Union and Denny Triangle neighborhoods. The new substation, located on Denny Way near Stewart St, will be City Light’s first and largest substation in 30 years. The Denny Substation Program will increase system-wide reliability and operational flexibility, achieving a major electrical system upgrade for the city of Seattle. For more information, visit the project website at: http://www.seattle.gov/light/dennysub/

Long-Term Lane Closures on Denny Way Due to Electrical Substation Work

Construction at the future Denny Substation will begin to affect Denny Way on Aug. 28.

On Sunday, Aug. 28 crews will begin electrical duct bank excavation work on Denny Way. This project will require closures of both westbound lanes on Denny Way weekday and weekend nights. The westbound lanes closure is the first of three phases of work that will occur in Denny Way over the next three months. After the first phase, work will require nighttime eastbound lane closures from mid-September to mid-October and then 24/7 closures of one eastbound and one westbound lane from mid-October to mid-November for the third phase.

The specific closures for late August through mid-September (Phase 1) take place during the night and early morning to minimize impacts to the morning commute:

  • Weekdays: 11 p.m. to 5 a.m. – Both westbound lanes of Denny Way will be closed from Stewart Street to Minor Avenue N
  • Weekends: 11 p.m. to 7 a.m. – Both westbound lanes of Denny Way will be closed from Stewart Street to Minor Avenue N

During the Phase 1 closure, westbound traffic on Denny Way will be detoured southwest on Stewart Street to Boren Avenue, northwest on Boren Avenue to Fairview Avenue, then north on Fairview Avenue to Denny Way. The timing of the work is being coordinated with other projects on Stewart Street to limit the impact for commuters.

Project Background: As part of the Denny Substation Program, Seattle City Light is building a new substation (Denny Substation) and underground electrical distribution network (Denny Network) and designing a transmission line (Denny-Massachusetts Transmission Line) that will ensure more reliable power delivery to customers in and beyond the South Lake Union and Denny Triangle neighborhoods. The new substation, located on Denny Way near Stewart Street, will be City Light’s first and largest substation in 30 years. The Denny Substation Program will increase system-wide reliability and operational flexibility, achieving a major electrical system upgrade for the city of Seattle. For further information, visit the project website at: http://www.seattle.gov/light/dennysub/