The revitalization of the Fulton Street Transit Center is now more than 50 percent complete.
Earlier this month, the Metropolitan Transportation Authority installed the first superstructure steel at the Transit Center Building.
Steel construction will continue over the next several months and is expected to be finished by the end of this year.
Meantime, restoration work continues on the the historic Corbin Building, and a mezzanine on the A and C subway lines is awaiting final touches, including glass tiles and an electronic LED system.
The MTA will open various parts of the complex as it's completed.
The new 2 and 3 Fulton Street subway station is already open and work has also been completed on the 4, 5, and R lines.
The $1.4 billion project is scheduled to be completed in June 2014.
It will connect six subway stations and 11 lines, serving more than 300,000 commuters a day.