Opus Center | |
---|---|
General information | |
Address | 625 Fifth Avenue South (Opus Center East) 605 Fifth Avenue South (Opus Center West) 705 Fifth Avenue South (Opus Center South) |
Town or city | Seattle |
Coordinates | 47°35′49″N122°19′41″W / 47.597°N 122.328°W |
Design and construction | |
Architect(s) | Andre Bilokur [1] |
Architecture firm | NBBJ |
Structural engineer | Coughlin Porter Lundeen [2] |
Civil engineer | Coughlin Porter Lundeen [2] |
Opus Center is a set of four office buildings built in Downtown Seattle. The structures, completed in 2000 or 2001, are four, nine and eleven stories tall, and two of them are constructed on a lid over the underground Chinatown transit station, completed in 1985. [3] [4] [5] [6] Until 2011 it was the headquarters of Amazon.com. [7]
The building's engineering is unusual because of the placement over the transit tunnel, and for other reasons. Part of the structure is cantilevered over the 1985 load-bearing columns that did not match the later building's design. Because of the tunnel, four buildings are designed as one seismic unit, including a rubber membrane serving as a joint between all the buildings and 505 Union Station. It was the first building in Seattle with perimeter moment frame design since the 1994 Northridge earthquake, which exposed national safety concerns requiring re-review of this technique. [2]
The Downtown Seattle Transit Tunnel (DSTT), also referred to as the Metro Bus Tunnel, is a 1.3-mile-long (2.1 km) pair of public transit tunnels in Seattle, Washington, United States. The double-track tunnel and its four stations serve Link light rail trains on the 1 Line as it travels through Downtown Seattle. It runs west under Pine Street from 9th Avenue to 3rd Avenue, and south under 3rd Avenue to South Jackson Street. 1 Line trains continue north from the tunnel to Northgate station and south through the Rainier Valley past Seattle–Tacoma International Airport to Angle Lake station as part of Sound Transit's light rail network.
Commerce Court is an office building complex on King and Bay Streets in the financial district of Toronto, Ontario, Canada. The four-building complex is a mix of Art Deco, International, and early Modernism architectural styles. The office complex served as the corporate headquarters for the Canadian Imperial Bank of Commerce (CIBC) and its predecessor, the Canadian Bank of Commerce, from 1931 to 2021. Although CIBC relocated its headquarters to CIBC Square, the bank still maintains offices at Commerce Court.
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The Seattle Convention Center (SCC), formerly the Washington State Convention Center (WSCC), is a convention center in Seattle, Washington, United States. It consists of two buildings in Downtown Seattle with exhibition halls and meeting rooms: Arch along Pike Street and Summit on the north side of Pine Street. The former straddles Interstate 5 and connects with Freeway Park. The convention center was planned in the late 1970s and funded through $90 million in bonds issued by the state legislature.
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The Fourth and Madison Building is a 40-story skyscraper in downtown Seattle, Washington. The building is located at 925 Fourth Avenue, at the intersection with Madison Street. Upon its completion in 2002, the late-modernist highrise was Seattle's first building to exceed 500 ft (150 m) in over a decade.
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U District station is a light rail station on the 1 Line of Sound Transit's Link light rail system in Seattle, Washington, United States. It is located in the University District neighborhood, near the University of Washington campus. The underground station has two entrances along Brooklyn Avenue Northeast at 43rd and 45th streets.
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