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The Insanely Expensive Second Avenue Subway Explained

The boring machine, nicknamed "Adi," sits in the southbound tunnel at 96th Street, 2011. (Jake Dobkin/Gothamist)


Empty platform at 96th Street, days before the Second Avenue Subway is expected to open. (Gretchen Robinette/Gothamist)


The face of "Adi." (Jake Dobkin/Gothamist)



Excavation site for 72nd Street station, 2012. (MTA)


Second Avenue Subway Groundbreaking, 10/27/1972; NYCTA Photograph Unit Collection. (Courtesy of New York Transit Museum)


Structural supports line the walls of the northbound tunnel, 2012. (Jake Dobkin/Gothamist)



Workers in the tunnel at 86th Street, 2013. (Evan Bindelglass/Gothamist)


Digging at the 86th Street tunnel, 2013. (Evan Bindelglass/Gothamist)


Northbound tunnel at 86th Street, 2013. (Evan Bindelglass/Gothamist)


72nd Street station, 2013. (Patrick Cashin/MTA)


Nearly finished tunnel, 2015. (Christian Hansen/Gothamist)


Stairwells under construction at 86th Street, 2015. (Christian Hansen/Gothamist)



Glass pavilion over 96th Street station. (Gretchen Robinette/Gothamist)


Onwards and upwards.(Gretchen Robinette/Gothamist)