Google Map of routes
Route options undergoing additional analysis
  • Existing substations icon Existing substations
  • Proposed substations icon Proposed substation

Check the boxes above to view the route options PSE is currently considering, as well as photo simulations of the upgraded transmission lines.

PSE’s preference is to use the existing transmission line corridor. The Willow 1, Willow 2, Oak 1 and Oak 2 route options reflect this value and vary in the Factoria area of Bellevue. These route options are being evaluated in the Environmental Impact Statement process (EIS).

PSE also submitted two East Bellevue Community Council 'bypass' route options to be evaluated in the EIS. These bypass routes were developed to avoid risking a potential project delay due to permitting.

DISCLAIMER: This interactive map is for illustrative purposes only and search results depicted on it are approximate. It is not used for project planning or engineering purposes. If you have questions about the interactive map, please contact the project team at