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Puget Sound Energy distribution line project

Winslow area underground distribution line project

Spring 2014 project completion
  • Construction of the underground distribution line was split into two phases.
  • Phase one started in July 2012 and was completed in March 2013. Construction of phase two started in June 2013 and was completed in April 2014.
Project overview

The overhead distribution line serving the area south of Eagle Harbor (see project map) was historically prone to numerous tree-related power outages. To improve electric reliability for our customers in the area, PSE converted the overhead distribution line to an underground distribution line, decreasing the likelihood of tree-related power outages for our customers.

The line, which ran from Winslow substation (7480 NE Bucklin Hill Road) east on Northeast Bucklin Hill Road, and continued cross-country between Blakely Avenue Northeast and Eagle Harbor Drive Northeast, was relocated to the road right-of-way in a new alignment following Northeast Bucklin Hill Road, Bucklin Hill Road Northeast, and Eagle Harbor Drive Northeast (see project map). The line running cross-country between Blakely Avenue Northeast and Eagle Harbor Drive remained as a means to serve some of our customers living along the cross country corridor, and to serve as a back up power source in the event of an outage on another local distribution line.

Download full size map

Project map

What is a distribution line?

Distribution lines are critical links in the electrical system moving power from electrical substations through distribution transformers directly to homes or businesses. Unlike transmission lines, distribution lines typically carry less than 55 kV; PSE's distribution lines are typically 12.5 kV. Distribution lines can be installed both above and below ground.

What is a substation?

Substations are critical links in the electricity distribution system, containing utility circuit protection, voltage regulation, and equipment that steps down higher voltage to lower voltage. Before reaching homes and businesses, power is routed through our transmission system to a substation where it is changed to a lower voltage that can be utilized by customers.

Download the information

Download these PDF files for more detail on PSE's Winslow area underground distribution line project.

April 3, 2014 Planned Outage Postcard
Project update notice, July 2012
Cyclist safety notice, July 2012
Project map with phases
Project map
Project announcement notice, January 2012