Northwest Transit Systems Partners JV to oversee Sound Transit light rail expansion

Northwest Transit Systems Partners (NTSP), a joint venture consisting of US transportation design and construction management firm STV, and Mott MacDonald, is to oversee the systems construction of two new light rail extensions for Sound Transit’s light rail system in Seattle, US. The NTSP team will perform systems construction management services for the US$3.7 billion East Link Extension, a 14-mile-long extension connecting Seattle, Mercer Island, Bellevue and Redmond; and the US$1.9 billion 4.3-mile
August 23, 2017 Read time: 2 mins
Northwest Transit Systems Partners (NTSP), a joint venture consisting of US transportation design and construction management firm STV, and 1869 Mott MacDonald, is to oversee the systems construction of two new light rail extensions for Sound Transit’s light rail system in Seattle, US.


The NTSP team will perform systems construction management services for the US$3.7 billion East Link Extension, a 14-mile-long extension connecting Seattle, Mercer Island, Bellevue and Redmond; and the US$1.9 billion 4.3-mile Northgate Link Extension between the University of Washington at Husky Stadium, the University District and the Northgate area. Both extensions are key components of a larger system expansion being undertaken by Sound Transit over the next 25 years.

Sound Transit estimates that at least 50,000 people a day will use East Link by 2030. Once completed, the extension will be the world’s only passenger light rail service operating over a floating bridge, the section of I-90 over Lake Washington connecting Mercer Island and Seattle.

For more information on companies in this article

Related Content

  • Cost Benefit: the economic case for cycling
    August 20, 2019
    Cycling is good for us for any number of reasons. David Crawford finds that it is now possible to access basic, low-cost data which will help make the economic case for improving infrastructure Cycling is enjoying a favourable press the world over as a ‘good thing’ in the economic, environmental and social spheres. A recent study on the Value of Cycling from the UK’s University of Birmingham, for example, shows that cycle-friendly urban settings can deliver annualised transport infrastructural support co
    Read More
  • Mexico City seeks solutions to improve air quality
    December 6, 2017
    David Crawford ponders prospects for one of the world’s most congested and polluted cities. In 1992, the United Nations named Mexico City as the world’s most polluted urban centre. In the first half of 2016, following the updating of pollution alert limits to meet international standards, Mexico recorded 115 days where ozone concentrations exceeded the acute exposure health limit.
    Read More
  • Balfour to deliver Bay Street corridor project 
    September 17, 2021
    Balfour partners include Superior Construction, Stantec and Miller Electric
    Read More
  • LA metro secures federal funds for rail projects
    February 19, 2016
    The US Department of Transportation has awarded US$300 million to the Los Angeles County Metropolitan Transportation Authority (Metro) for two major rail projects in Los Angeles County. This federal funding will benefit both the Regional Connector and Westside Purple Line Extension (Sections 1 and 2) transit projects. Specifically, the federal government will be providing US$100 million to the Regional Connector and US$200 million for the Westside Purple Line section 1 and 2 extension this federal fisca
    Read More

Highlighted Content