NTSP to Oversee Construction of Two Sound Transit Light Rail Extensions

Northwest Transit Systems Partners (NTSP), a joint venture consisting of STV and Mott MacDonald, has been chosen to oversee systems construction of two new extensions for Seattle Sound Transit’s light rail system. The Sound Transit Board of Directors approved the contract in May.

NTSP will perform systems construction management services for the following two light rail extensions:

  • The $3.7 billion, 14-mile-long East Link Extension, which will connect Seattle, Mercer Island, Bellevue and Redmond; and
  • The $1.9 billion, 4.3-mile Northgate Link Extension between the University of Washington at Husky Stadium, the University District, and the Northgate neighborhood.

“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. “The end result is a Sound Transit system that aspires to be one of the nation’s best transportation networks.”

Both light rail extensions were approved by voters and are part of a larger system expansion that will take place over the next 25 years. The extension will be the world’s only passenger light rail service that operates over a floating bridge. It will operate over the floating bridge on a section of I-90 over Lake Washington.

STV is a provider of engineering, planning, architectural, and environmental and construction management services for transportation systems, infrastructure and other facilities.