“This has been a team effort with many key contributions from within WSP,” said Tara Olsen, senior project manager and assistant vice president. McMillen Jacobs Associates served as the prime consultant for the project, and KPFF provided civil design for the other two stations and a portion of Northgate Station. WSP participated in extensive coordination with King County Metro and the Seattle Department of Transportation on transit, pedestrian and traffic operations, and was responsible for the aerial guideway and Northgate Station design, project integration, track design, mechanical engineering, station and tunnel ventilation, traffic and civil design for Northgate Station, and quality assurance/quality control. All but 0.8 miles of the new track are located underground. The extension includes two underground stations – U District and Roosevelt – and an elevated station at Northgate. 2.Īs part of the McMillen Jacobs Associates-led team, WSP USA, a leading engineering and professional services consultancy, provided final design for the $1.9 billion double-track light rail transit line that extends the transit system from its previous terminus at the University of Washington. A bay on 100th Avenue NE is also used for layovers.SEATTLE - The Northgate Link Extension, a new 4.3-mile, three-station extension of Sound Transit’s light rail network that includes three miles of tunnel and 2,200 feet of aerial guideway, opened for passenger service on Saturday, Oct. The former Nortghate Transit Center, located adjacent to the bus loop, is used for bus layovers in between trips. With the construction of the station, a new pedestrian and cyclist overpass crossing the I-5 freeway opened as well, providing access to areas west of the freeway.īus services are located in the loop underneath the station, as well as in bays along 1st Avenue NE by the station exit. Prior to the station opening in 2021, these suburban services terminated in Downtown Seattle or at the University of Washington. The station serves as a hub for local King County Metro bus routes, as well as for suburban bus services operated by Sound Transit, King County Metro and Community Transit. Located near 1st Avenue NE and NE 103rd Street in Seattle, Northgate Station provides access to nearby residential areas, as well as Northgate Mall and other commercial destinations.
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