Council on Tall Buildings and Urban Habitat
CTBUH Seattle Tours Tower 12
March 23, 2017

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SEATTLE – CTBUH Seattle's Young Professionals Committee (YPC) organized a tour of Tower 12 on March 23, 2017. Tower 12, named after the Seattle Seahawks "12th Man," is a 35-story, 386-foot (118-meter)  residential tower at 2nd Avenue and Virginia Street in downtown Seattle. The tour began with a safety briefing and a general building Q&A session. The project broke ground in early 2015 and is planned to open April 2017.

View of Tower 12, looking up. Participants tour a residential unit.

The 491,000-square-foot (49,600 square meter) structure is supported by post-tensioned floor slabs and a ductile concrete core combining shear walls and moment frames. By using high-strength concrete in the columns and outrigger beams from the core, internal columns were eliminated. High strength reinforcing steel was used in the foundation mat, moment frames, and shear wall boundary elements, which reduces congestion and improves constructability.

The tour began in the above-grade parking garage and progressed through several typical floors.  Participants were able to see completed apartment units of varying sizes.  Near the top of the building, large windows framed the expansive views of Seattle’s Skyline, Mt. Rainier, and the Puget Sound.  The tour ended on the roof deck amenity level with a group photo.

Tour participants pose for a group photo on the roof deck.
After the tour, participants met up for a social happy hour at Kell’s, an Irish Pub tucked away in Pike’s Place Market.
Andy Tu CKC
Bill Maibusch Andersen Construction
Jerry Jackson 3ds
Jerry Lee CKC
Joey Piotrowski MKA
John Stout Weber Thompson
Jordan Selig Martin Selig Real Estate
Justin Bise NBBJ
Krzysztof Zaleski MKA
Lynn Porter DJC
Ross Lambert GGLO
Sean Cahalin GGLO
Tom Webster GGLO
Tom Xia DCI
Zohrah Ali CKC