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Current Issues/Highlights
Manhattan North Structures (CM006): Work continues on the Upper North End Wall in the East
Cavern and Upper Level Slab in the West Cavern in the Back of House. Installation of the ductbank
continues in GCT 4 and GCT 5 East Wyes. Contractor continues repair work in the 63rd Street tunnel.
GCT Concourse and Facilities Fit-Out (CM014B): Mechanical rock excavation at 48th Street started
during the week of January 11. Reframing of the Dining Concourse floor opening is underway.
ESA – GCT Facility Operations & Passenger Experience: MTACC-ESA worked collaboratively
with Metro-North Railroad in the development and recent installation of public-facing graphics and
signage "wrapping" ESA construction barricades, in Grand Central Terminal on the Lower Dining
Level.
Plaza Substation and Queens Structures (CQ032): Exterior louver and panel installations continue
on the exhaust shaft at the Tunnel Vent Facility. Contractor continues brickwork and interior wall
construction at the Yard Services Building.
Harold Structures – Part 3 (CH057): Field survey began at the end of January, along with testpitting
for future excavation work at 48th Street Bridge and Tunnel D Approach.
Master Page # 38 of 290 - Joint Metro-North and Long Island Committees Meeting 2/22/2016
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Harold Structures – Part 3A (CH057A): On the East Approach, drilling for the low headroom secant
piles commenced with four of the seven remaining piles installed through the end of January.
Excavation of the launch pit area is expected to commence before the end of February, after the last
three secant piles are installed. These piles are required to finish the East Approach support of
excavation wall along Main Line 4 track.
Systems Package 1 – Facilities Systems (CS179): Contractor continues electrical conduit installations
at the C06 and C07 Levels in the Plaza Interlocking and at the 39th Street, 29th Street, Vernon
Boulevard and Roosevelt Island vent plant facilities; fire standpipe installation in the Yard Lead
Tunnel and Vernon Boulevard Vent Plant Facility; and HVAC work at the 39th Street Vent Plant
Facility. Contractor is continuing with demolition of abandoned electrical conduits in the 63rd Street
Tunnel.