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Sound Transit chooses STV-Mott MacDonald to oversee light-rail construction

The firms will provide systems construction management services for two light-rail projects.
Photo – Sound Transit


Sound Transit has picked STV and Mott MacDonald to oversee the construction of two major light-rail extensions.

The two firms will work as part of the Northwest Transit Systems Partners (NTSP) joint venture, which Sound Transit's board approved in May, STV officials said in a press release.

The joint venture will perform systems construction management services for the $3.7 billion East Link extension, as well as the $1.9 billion Northgate Link extension.

By 2030, the 14-mile East Link line is expected to serve 50,000 daily riders. The extension will be the world's only passenger light-rail line operating over a "floating bridge," STV officials said. The bridge will be located on a section of Interstate 90 over Lake Washington.

The 4.3-mile Northgate Extension is projected to serve more than 60,000 weekday riders by 2030. The line will connect residents in Seattle's Northgate neighborhood to Sea-Tac Airport in 47 minutes and downtown Seattle in 14 minutes.

"These two extensions will provide commuters with easier, more reliable access to jobs, schools, retail and cultural institutions all across Seattle and the surrounding area," said John Ponzio, STV vice president and systems national practice leader.

Contact Progressive Railroading editorial staff.

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