Sound Transit opens new Seattle light rail line ahead of schedule

WCN Editorial Team 26 May 2016 NORTH AMERICA TRANSPORT INFRASTRUCTURE

The regional transit authority serving the Greater Seattle Area Sound Transit  has inaugurated the University Link Light Rail Extension in Seattle.


CH2M, serving as the lead in a construction management joint venture, announced that the rail project has been delivered six months ahead of schedule and about $200M under its $1.6bn budget.

The 2.5km extension runs through twin-bored tunnels from downtown Seattle north to the University of Washington, with stations at Capitol Hill and on the university’s campus near Husky Stadium.

The project involved nine separate contracts for the demolition, utilities, site preparations, two underground stations, 2.5km of twin-bore tunnel with precast placed liner, 21 hand-mined cross passages and expansion of the pre-existing rail yard.

CH2M provided overall programme management, resident engineering, inspection, project controls, cost estimating, constructability reviews and contract administration for the project that lasted eight years.

The project is estimated to nearly double weekday ridership on the existing light rail line to more than 70,000 riders by 2020.

* Data provided by Timetric's Construction Intelligence Center.

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