South Lake Union/Uptown Triangle Mobility Plan

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The South Lake Union and Uptown neighborhoods will undergo a massive transformation in the next decade as the neighborhoods grow to accommodate more than 12,000 new residents and 24,000 new jobs.

In addition, three major infrastructure projects—the Alaskan Way Viaduct Replacement Project, the Mercer East Project, and the Mercer West Project—will change travel patterns in the area and provide key links between the two neighborhoods for pedestrians, bicycles, and transit.

There have been many independent planning studies performed in the two neighborhoods. This plan seeks to consolidate all of the prior planning efforts and adapt them to account for the major infrastructure projects.

This plan was created with substantial input from neighborhood interest groups, businesses, and various agencies. A detailed analysis and user survey was also performed by the Cascade Bicycle Club as part of this project. All plan recommendations have been vetted through the plan’s advisory committee.