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February 17, 2017

$326M Colman Dock moves closer to construction start this summer

Journal staff reporter

Images by NBBJ [enlarge]
The old ferry terminal, dedicated in 1965, will be replaced with two buildings.

The new entry on Alaskan Way will extend between Madison and Columbia, with a walkway to the terminal.

The terminal serves over nine million people per year.

The city has granted conditional approvals for the $326 million project to replace the aging Colman Dock.

Minor shoreline and SEPA conditions were placed on the project at 801 Alaskan Way, which is a major component of the multi-billion dollar redevelopment of the downtown waterfront.

Appeals are due by March 9 to the State Shoreline Hearings Board.

Construction is expected to begin this summer. The project already has its environmental determination of non-significance from the Washington State Department of Transportation.

What is officially called the Seattle Multimodal Terminal at Colman Dock will be built by a joint venture of Hoffman-Pacific. The phased construction is expected to take about six years to complete.

Meanwhile, demolition of the Alaskan Way Viaduct could begin in 2019, after the replacement tunnel opens.

The facility serves over nine million people per year. The old terminal, dedicated in 1965, will be replaced with two buildings. Instead of extending perpendicularly out from the shoreline, as did the old Pier 52, the new terminal will be oriented laterally along the pier's west edge.

A smaller new entry building on Alaskan Way will extend between Madison and Columbia streets. An upper-level pedestrian walkway will connect the entry building with the terminal.

A new passenger-only ferry facility will be added on the south side of the pier, for service to Vashon, West Seattle and Bremerton. New pilings will also expand the pier to the south.

On the north side, pilings will be replaced and a section of the pier will be removed between Marion and Madison streets, creating new waterfront. A new pedestrian bridge will be built along Marion as a separate city project.

The state estimates that it will remove 2,600 old wood pilings and add 618 new steel and concrete pilings. The vehicle queuing and loading area will be revised, though vehicle exits and entrances will be essentially the same.

The Colman Dock project team also includes: lead consultant BergerABAM, architects NBBJ and SRG Partnership, HBB Landscape Architecture, Axis Environmental, CH2M Hill, KPFF (consulting engineer), Osborn Consulting (civil design), FSI Engineers, Parametrix, Parsons Transportation Group, Holmberg (mechanical) and Valley Electric.

(Editor's note: This story has been changed to add Osborn Consulting to the project team list.)

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