Completing the Second Avenue Subway Project, New York

摘要

Phase 1 of the Second Avenue Subway Project is due for completion in December 2016. At a cost of $4.5 billion this phase will provide 4 new stations and 2 miles of new tunnels to extend the existing Q line to the upper east side of Manhattan. Future phases will extend north into Harlem and south to the Financial District.This paper will focus on the challenges of completing and fitting out the tunnels, caverns and cut and cover structures previously constructed. The complexity of completing the platforms, mezzanines, public, back of house and ancillary structures together with interfacing with adjacent properties, utilities and third parties will be covered. In particular the lessons learned from the installation of track, escalators, elevators, architectural finishes and systems integration to a tight schedule while accommodating design changes will be covered. Particular focus will be paid to waterproofing methods used and remedial work done prior to completion.