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​Mercer Corridor

The City of Seattle is planning for the Two-way Mercer Corridor Project which will enhance Mercer Street from I-5 to the Elliott Bay waterfront. The first phase, between I-5 and Dexter Avenue North, will provide three travel lanes in each direction with parking and sidewalks on both sides. Phase 2, between Dexter and Elliott Avenues, will have six lanes between Dexter and 5th Avenue North, four lanes between 5th Avenue North and 1st Avenue North, and two lanes between 1st Avenue North and Elliott Avenue. Phase 1 began construction in early 2010.
The Mercer Corridor has become an important element of the proposed Alaskan Way Viaduct Bored Tunnel project as it will provide a key east/west connection at the north portal of the tunnel. Mercer Street is being designated as an important freight corridor between the Seattle waterfront, Interbay, Ballard, and the regional highway system.
The port is coordinating closely on this project to protect the corridor as a viable truck route. The port continues to participate in the Mercer Corridor Stakeholders' Committee and as a partner in the Alaskan Way Viaduct project team.
For more information visit the City of Seattle website.