Beacon HillUpdate - June 11 2009
As early as Monday, June 15 , Sound Transit's contractor, Obayashi Corporation will temporarily close a portion of 17th Ave S at the intersection of S. Lander Street.
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The Beacon Hill tunnel's west portal, or opening, is located under I-5, east of Airport Way. The underground Beacon Hill Station will be located at the southeast corner of Beacon Avenue South and South Lander Street.
The east portal, or opening, is located to the east of 25th Avenue South and south of South McClellan Street, where the light rail line will emerge to an elevated trackway as it approaches the Mount Baker Station near the intersection of Rainier Avenue South and South Stevens Street.
Obayashi Corporation is the Beacon Hill construction contractor. The contract includes construction of one mile tunnel under Beacon Hill, the west and east portals, a half mile of elevated trackway, and the Beacon Hill and Mount Baker stations.
Obayashi Corporation continues to build the underground Beacon Hill Station. The main shaft (which will ultimately hold the station’s four high-speed elevators) and the secondary shaft (which will provide ventilation and emergency staircases) are both excavated to their final depth. At approximately 165 feet deep, workers have completed major mining activities including the northbound and southbound running tunnels (by use of the tunnel boring machine), all of the station’s cross-passages and ventilation attits, and the underground station concourse, using the sequential excavation technique.
At the Mount Baker Station area, Obayashi is building the elevated trackway between the columns. Most of the elevated trackway sections are in place, and workers are concentrating on the sections on the west side of Martin Luther King Jr. Way South near the earth embankment.
Beacon Hill businesses are open during construction. Learn more from our Marketing Flier (PDF 366kb)
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Link animations
Construction of the light rail system is underway. Visit our collection of conceptual animations of this exciting new service that begins in 2009.
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