Deep Blue.
Deep below the streets of Jersey City, NJ Transit trains rumble back and forth through the Bergen Tunnels to and from Hoboken Terminal. The 4,200-foot long tunnels cut through Bergen Hill, the southernmost end of the Hudson Palisades. The northern tunnel was built from 1873-1877 by the Delaware, Lackawanna & Western Railroad, with the southern tunnel opening in 1910. Partway through the tunnels are two large open-cut ventilation shafts, which also feature emergency exit staircases and standpipes for firefighting. At left is an older ventilation shaft, one of five that date back to the construction of the tunnels. These were stabilized and backfilled during the 2001 renovation of the tunnels. In this view, GP40PH-2B no. 4208, the railroad's Conrail heritage unit - identifiable by its blue color, rather than the black roof of nearly every other NJT locomotive - is seen shoving non-revenue train X132 through the north tunnel on Track 1.
