When Seattle’s King Street Station opened its doors in 1906, it stood as a bold symbol of the city’s newfound prominence as the region’s primary shipping port—a position the Emerald City holds to this day.
Designed by architects Charles A. Reed (1858-1911) and Allen H. Stem (1856-1931), most noted for their work on New York’s Grand Central Terminal, King Street Station was the centerpiece of a massive enterprise that shifted the city’s main rail lines from the waterfront to the central business district, thanks to the construction of a 5,245-foot tunnel beneath the city. The L-shaped, 62,400-sf terminus quickly became the busiest train station in the Northwest, earning it the nickname “Gateway to the West.”
The Italianate depot features a distinctive, 242-foot-tall clock tower, the second-tallest such structure on the West Coast; it was modeled after the Campanile di San Marco in Venice. At the time of its completion, the station was the tallest structure in Seattle. Inside, bright-white plaster and marble decorated the walls and ceiling of the waiting areas.
The depot was placed on the National Register of Historic Places in 1973, but by that time it had lost much of its grandeur. Poorly conceived modernizations in the ’40s, ’50s, and ’60s led to the removal of large sections of the plaster and marble walls and glass mosaic tile accents. The magnificent plaster ceiling was covered with acoustical tiles. The roof was crumbling. The staircase on Jackson Street was boarded up. The four tower clocks were right only twice a day.
PLATINUM AWARD WINNER
King Street Station
SeattleBuilding Team
Submitting firm: ZGF Architects (architect)
Owner: Seattle Department of Transportation
Structural/MEP engineer: Arup
Construction manager: Shiels Obletz Johnsen
General contractor: Sellen ConstructionGeneral Information
Construction time: Sept. 2009 to April 2013
Size: 62,400 sf
Delivery method: CM at risk
Cost: $55 million
The demise of train travel in the mid-20th century, coupled with a falloff in funding for maintenance, saw the station fall even further into a state of disrepair. Most urgently in need of shoring up were the unreinforced masonry walls—inspections showed that the structure was in no shape to withstand a major seismic event.
As rail ridership began to pick up in the 2000s, the city of Seattle decided it was time to upgrade and restore its landmark rail station. In February 2008, the city purchased the building from the Burlington Northern Railway Company for $10 and then went about rounding up the $55 million needed for a complete rehab and modernization (60% of funding came from federal sources; the balance was split between state and local sources).
The project scope encompassed full seismic retrofit and structural upgrade work, rehabilitation of the clock tower, full MEP/FP upgrades, and repair and restoration of the 45-foot-high ornamental plaster ceilings and walls, the terrazzo and mosaic tile floors, and the operable windows—all while striving for LEED Platinum certification. Complicating matters was a requirement from the city that the station remain fully operational during the project—a goal the team achieved by dividing the work into multiple phases.
INSERTING A NEW STRUCTURE
Half the budget was allocated for the structural repair and seismic retrofit work—a tedious, meticulous process that involved inserting a new steel frame structure inside the existing masonry walls with surgical precision so as not to disturb the historical elements. The Building Team cut 35-foot-high slots into the brick perimeter and inserted steel columns and high-strength grout alongside the existing columns.
New shear walls were created for the 8,000-sf waiting room. Steel floor plates were added on levels two and three for additional strengthening. The 12-story clock tower was cross-braced; new columns were added on all four corners. A total 1,345 tons of steel was installed to support the interior spaces.
A system of geothermal wells was bored underneath the downtown plaza; it is designed to cover 100% of the 62,400-sf building’s heating and cooling needs. The clock tower rises 242 feet to its peak. ZGF Architects led the Building Team for the client, the Seattle Department of Transportation. Photo: Benjamin Benschneider Photography
While not as costly as the structural work, the rehabilitation of the historic interior elements was no less difficult. To replicate damaged and missing elements of the ornamental plaster walls and ceiling, matching molds were painstakingly created using the original ornate pieces and the same casting methods craftsmen employed more than a century ago. The molds were filled with casting plaster and inlaid with hemp and burlap during the casting process to create the final pieces. The castings were then stripped out of the molds, reinstalled, and attached to the structure.
The Building Team removed all of the sashes and trims from the original windows and refinished and reinstalled them using all remaining original glass. In all, the team restored 74 window openings and 199 sashes and replicated 15 window openings and 33 new sashes.
Significant care was taken to protect the floors during the structural steel installation and helical pile drilling. Areas of the marble inlaid terrazzo floors were catalogued, removed, and reinstalled after the new buried structure was installed. Where the original tile flooring was missing, the team repurposed existing pieces of marble to replicate the floor elements.
In honoring King Street Station with a Platinum Award, the Reconstruction Awards jury commended the Building Team on its technical precision in executing both heavy construction work—structural steel reinforcing and geothermal installation—and extremely delicate and often tedious historic restoration work—all while the station remained operational.
“The fact that they were able to execute all of this work while achieving LEED Platinum certification through features like geothermal makes the project even more impressive,” said judge Krista Gnatt, LEED AP, Preconstruction and Business Development Manager with Bulley & Andrews, Chicago.
Related Stories
| Jun 10, 2014
Site optimization: Paving the way for smoother land development projects
The biggest cost differential when dealing in site development from one site to another is the earthwork. So, when selecting a site, it is critical to not only take into account the initial purchase price of the property, but also what sort of investment it will take to prep the site for development.
| Jun 10, 2014
Gaudi’s famed cathedral on ice: Dutch students to construct 132-foot ice replica of Sagrada Familia
"Sagrada Familia in Ice" will be built with a mixture of wooden fibers and plain ice that is three times stronger than ice.
| Jun 10, 2014
Built-in balcony: New skylight windows can fold out to create a patio
Roof window manufacturer Fakro offers a skylight window system that quickly converts into an open-air balcony.
| Jun 10, 2014
New York's first-ever public housing for visually-impaired begins upgrade
Selis Manor is the first government-funded residence for the vision-impaired and disabled in New York City. MAP’s design eases crowding, increases security, and separates residents and visitors.
| Jun 9, 2014
6 design strategies for integrating living and learning on campus
Higher education is rapidly evolving. As we use planning and design to help our clients navigate major shifts in culture, technology, and funding, it is essential to focus on strategies that help foster an education that is relevant after graduation. One way to promote relevance is to strengthen the bond between academic disciplines and the campus residential life experience.
| Jun 9, 2014
Green Building Initiative launches Green Globes for Sustainable Interiors program
The new program focuses exclusively on the sustainable design and construction of interior spaces in nonresidential buildings and can be pursued by both building owners and individual lessees of commercial spaces.
| Jun 9, 2014
10 projects named 2014 AIA Small Project Award winners
Yale's funky new Ground café and a pavilion made from 53,780 recycled plastic bottles are among the nation's best new small projects.
| Jun 9, 2014
Eli Broad museum files $19.8 million lawsuit over delays
The museum, meant to hold Eli and Edythe Borad's collection of contemporary art, is suing the German company Seele for what the museum describes as delays in the creation of building blocks for its façade.
| Jun 8, 2014
What’s the word of the day? It’s all about ‘resiliency’
Just for the sake of argument, let’s put aside the rhetoric about climate change—whether it’s actually happening, whether it’s a result of manmade activity—and agree that we are experiencing some pretty dramatic weather events that are having huge impacts on populations here in the U.S. and worldwide.
Smart Buildings | Jun 8, 2014
Big Data: How one city took control of its facility assets with data
Over the past few years, Buffalo has developed a cutting-edge facility management program to ensure it's utilizing its facilities and operations as efficiently, effectively, and sustainably as possible.
