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.

Related Content

  • March 4, 2024
    Let’s explore Phoenix: Getting transit right in the hottest city in the US
    Ahead of ITS America's Conference & Expo in Phoenix, ITS International asked Transit Unplugged's Paul Comfort (with Tris Hussey) to offer some thoughts on urban mobility in this part of Arizona
    Read More
  • January 30, 2012
    Mounting benefits of dynamic tolling project
    Wisconsin's four-year HOT lanes pilot project, launched in May 2008, cost US$18.8 million to construct. Halfway into the project, which uses variably priced, or dynamic, tolling to improve highway efficiency, the benefits are mounting. The problem was obvious, and frustrating, to anyone who ever sat in bumper-to-bumper traffic on State Route 167 and watched a lone car whiz by every 20 seconds or so in the carpool lane. But for planners at the Washington State Department of Transportation, the conundrum was
    Read More
  • March 28, 2018
    P3s offer new options for public transit agencies
    David Crawford welcomes new US guidance on public-private partnerships in the public transit sector. Public-private partnerships (P3s) are becoming increasingly favoured as a means of cost-effectively delivering much-needed public transit projects across the US. Previously, researched examples have tended to be on the large-scale while information on the potential for smaller, more localised schemes has been comparatively sparse. In a bid to fill that gap, the ‘Public Transportation Guidebook for Small
    Read More
  • September 6, 2017
    Remote remedies help US authorities identify bridge deficiencies
    Every day 185 million vehicles – cars, trucks, school buses, emergency response units - cross one or more of America’s 55,710 'structurally compromised' steel and concrete road bridges, the highest concentration of which are in Iowa (nearly 5,000), Pennsylvania and Oklahoma. Nearly 2,000 of these crossings are located on interstate highways, according to the American Road and Transportation Builders Association's recent analysis of the US Department of Transportation's 2016 National Bridge Inventory.
    Read More

Highlighted Content