Skip to main content

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

  • Melbourne's 'intelligent corridor' opens
    March 24, 2022
    Kapsch TrafficCom's EcoTrafiX platform will be used on 2.5km section of Nicholson Street
  • UK railways to benefit from information upgrade
    January 3, 2013
    More than US$13.44 million funding will be spent by train companies to boost passenger information at stations across the UK. The funding will pay for a national roll-out to link customer information screens at stations to the latest live real time train information data, fed from a database developed and maintained by train companies. The upgrade will be rolled out in around 2,000 National Rail stations. The first stations will be switched on in summer 2014 and the whole project is anticipated to be comp
  • Tolling is the 21st century’s road funding solution
    June 5, 2015
    HNTB’s Rick Herrington and Brad Guilmino put the case for tolling. Tolling is becoming the 21st century solution of choice for generating additional user-based transportation revenue. The proven funding source is being seriously considered for expanded use by cities, states and even the federal government with support from elected officials across the political spectrum. In fact, with each federal transportation reauthorisation, tolling restrictions have been relaxed.
  • The role of GIS in climate change resiliency
    May 29, 2014
    Climate change will pose global and local challenges and that includes risks to the transportation infrastructure. Climate change adaptation and resiliency has captured the attention of the transportation community for some time now. Because transportation infrastructure is often designed to last for 30, 50, or 100 years or even longer, transportation professionals are concerned not only about the impact on our existing investments, but also how to design more durable transportation systems for the future