Departing the historic 1907-built
Hoboken Terminal, the yards for the coaches to the left, trains pass over two city streets and the
Hudson Bergen Light Rail before entering the
Bergen Tunnels under the
Bergen Hill section of
Hudson Palisades. Midway through the tunnel there are air shafts allowing light through and venting out the diesel fumes. Exiting the tunnel, the train curves right onto the Main Line at West End interlocking in
Jersey City. Until 1963 this was the DL&W Boonton Branch; about a mile ahead was the connection built circa 1956 with the Erie main line (that after 1963 became the Bergen County Line). Two trains collided head-on here in 1996, killing two engineers and a passenger. The ramps for
New Jersey Turnpike Interchange 15X now occupy the Erie alignment—since the Bergen County line was rerouted adjacent to the Main Line to pass through
Secaucus Junction. At
Secaucus Junction, all trains stop for passengers to change to and from
Northeast Corridor Line,
North Jersey Coast Line,
Raritan Valley Line and Midtown Direct trains on the
Morristown Line, the
Gladstone Branch, and the
Montclair–Boonton Line on the upper level. The Main Line then runs through an industrial section of
Secaucus. Shortly afterwards the Bergen County Line curves right on its new connection to the Erie alignment. The Main Line then crosses over the
Hackensack River on the single-track
Upper Hack Lift bridge, built in 1958. Double track resumes under the
New Jersey Turnpike's western spur after 0.4 mile of single track. The train continues through the Meadowlands and passes the first grade crossing at Valley Brook Avenue in
Lyndhurst. The line curves slightly and passes through the 1903 Kingsland tunnel. The former Kingsland station is shortly after the tunnel in an open cut followed by the Lyndhurst station, on an embankment. After Lyndhurst the train crosses the
Passaic River via the
Lyndhurst Draw that has been bolted shut (although it is technically required by Federal regulation to be opened on 24 hours notice). The train enters Clifton as it crosses over
Route 21 and then passes under
Route 3 before it approaches Delawanna station. Next stop is
Passaic, on an embankment. After Passaic, the Main Line has a stretch through some industrial areas before the
Clifton station, also on an embankment. The Main Line passes under
U.S. Route 46 and the
Garden State Parkway before it crosses under and over several streets in south
Paterson. It leaves the DL&W Boonton Branch alignment at about and reaches the Erie Main Line alignment at . This connection was single track when built circa 1963, then double-tracked in a rehabilitation project in 2002. The line passes under
Interstate 80 and heads into downtown Paterson. The Erie station in Paterson is elevated, with a center platform. Continuing north the Main Line is elevated through Paterson, passing over streets. After several grade crossings in an industrial area, the tracks cross the
Passaic River on a truss bridge.
Hawthorne is the next stop, at grade level. After a long stretch, the train reaches
Glen Rock station, at grade level at a crossing. After Glen Rock the Main Line merges with the Bergen County Line at Ridgewood Junction. The line widens to three tracks (in Erie days the line was four tracks from here to Suffern NY).
Ridgewood station is next, with Spanish-style design on the station building and with newly constructed high-level platforms. Next is
Ho-Ho-Kus, also at grade.
Waldwick follows with an abandoned station building on the northbound side and a footbridge connecting the two platforms. Waldwick Yard is just north of the station with the restored WC tower on the southbound side by the yard. Just following Waldwick Yard is a
grade crossing. North of the grade crossing (which has three tracks) the line becomes two tracks.
Allendale and
Ramsey follow, both as grade-level stations. Ramsey-Route 17 station (opened August 22, 2004) is next. It is a park-and-ride facility located off of
Route 17 south in Ramsey.
Mahwah follows and is the last station in New Jersey. Crossing over the
New York state line the train arrives at
Suffern, the last stop for NJT Main Line trains. ==Stations==