Lackawanna/New Jersey Cutoff

Last revised: April 11, 2023

By: Adam Burns

The Lackawanna Cutoff, also known as the New Jersey Cutoff (as most of the route lies in New Jersey), was one of two grand realignment projects carried out by the Delaware, Lackawanna & Western in the very early 20th century.

Working from east to west the Cutoff was built between 1908 and 1911 at a cost of $11 million. While this route was only about 28.5 miles in length it shaved more than 11 miles of redundant trackage, shed many sharp curves, and reduced the ruling grade by more than half.

The cutoff only remained in use for about 73 years before it was abandoned and removed by then owner Conrail in 1984. 

Since Conrail's hasty decision there have been many attempts to reactive the cutoff.  There are few other rail corridors in such rugged terrain that offer such a superb right-of-way with few grades or curves. 

It is currently owned by NJ Transit with eventual plans to restore the route to operation as a high speed commuter line.  In 2023 those plans are much closer to becoming reality when the commuter system announced plans in April to overhaul Roseville Tunnel for $32.5 million.

Constructing the Lackawanna Cutoff, seen here in an eastward view of Wharton Fill from the top of Roseville Tunnel in May of 1909.


The Delaware, Lackawanna & Western has its beginnings in 1851 when on October 20th of that year the Lackawanna & Western Railroad operated its first scheduled train between Scranton and Great Bend, Pennsylvania (originally the L&W was known as the Liggetts Gap Railroad until it changed its name in 1851).

The Lackawanna gained its name in March of 1853 when it merged with the Delaware & Cobbs Gap Railroad (which constructed a line south of Scranton) to form the Delaware, Lackawanna and Western Railroad.

Although the DL&W would have a number of smaller railroads making up its system the final integral pieces of the railroad was the Morris & Essex (which built a line between Newark and Morristown, New Jersey) and New York, Lackawanna & Western (which built a line between Binghamton and Buffalo, New York).

The current end-of-track at Lake Lackawanna, located about 4 1/4-miles west of Port Morris. The state of New Jersey is rebuilding the Lackawanna Cutoff to serve New York City-bound commuters. The line will be operated by NJ Transit.


With the ownership of these lines the DL&W's main line was basically complete and, in all, stretched from Buffalo, New York to Hoboken, New Jersey just across the Hudson River from downtown New York City (Manhattan).

The idea of the DL&W leveling and straightening its main line to Buffalo began around 1900 and was the result of its president William Haynes Truesdale, who not only wanted the railroad to be more competitive in the New York City-Buffalo market but also wished to alleviate a curving and meandering route through much of western New Jersey and eastern/northeastern Pennsylvania that was slow, steep, and circuitous. 

Quite rich at the time, serving the lucrative anthracite coal mines of eastern Pennsylvania, timber regions, and vacation destination of New York's Pocono Mountains work on the DL&W's Lackawanna Cutoff, the first such project, began in earnest in 1908 at Port Morris, New Jersey (Lake Hopatcong) heading essentially straight west.

Following the abandonment of the Lackawanna Cutoff, looking towards Roseville Tunnel in the fall of 1989 about a decade after Conrail stopped using the corridor.

The new alignment, which replaced the "Old Road" (which was the result of hopeful merger with the Central Railroad of New Jersey that never happened), broke away from the main line initially heading north, then west.

The DL&W spared no expense in straightening and leveling its main line using massive fills and deep cuts to keep the maximum ruling grade at an astounding 0.6%! Perhaps the Cutoff's most impressive feature is its concrete bridges, which are arched designs built of concrete.

Most notable of these bridges is Paulinskill Viaduct, one of the largest in the world at the time (before Tunkhannock Viaduct was constructed). The bridge spans Paulins Kill in New Jersey and is more than 1,000 feet long and 100 feet high.

Map (1930)


Another interesting aspect of the cutoff's design is the use of concrete. Due to the material being readily available, as the railroad served many plants along its lines (the DL&W built many structures from concrete, including stations and interlocking towers), it was ultimately chosen as the material of choice to build both the Cutoff as well as the later Nicholson-Hallstead Cutoff.

The DL&W built almost everything from concrete, which not only included bridges and tunnels but also stations, interlocking towers, and  numerous other small structures (virtually everything along the Lackawanna Cutoff was built from concrete). 

The cutoff ultimately opened for business, officially, on December 24, 1911 at a cost of more than $11 million. With no grade crossings the 28.5-mile double-tracked cutoff could feature speeds of 70 mph and its straight, virtually level grade greatly reduced operating times despite its massive cost. 

The Cutoff remained in use through the DL&W and Erie Lackawanna eras. Passenger service on the line ended in 1971 and most of the remaining freight trains had been transferred to the former Erie main line after the EL merger.

By the time Conrail assumed control of the route in the spring of 1976 virtually no online traffic remained and the railroad made plans to abandon the route, despite its level grade. In 1984 the rails were pulled although after an effort to preserve the right-of-way for future commuter rail use in 1989 saved it from an uncertain future.

Since that time, slowly both Pennsylvania and New Jersey have worked to complete the necessary paperwork to begin reconstruction of the route. As of 2013 the first 7.3 miles between Andover and Port Morris Junction, New Jersey.

Seen here is the massive Pequest Fill under construction, near Tranquility, New Jersey in the summer of 1911.

2022 Restoration

It appears the cutoff's restoration has again gained steam following several more years of delays.  In an announcement made public in April, 2022 NJ Transit says it plans to $32.5 million to overhaul and repair the 1,024-foot Roseville Tunnel between Port Morris and Andover.

The project is part of a larger effort for NJ Transit and Amtrak to finally expand passenger service directly to Scranton, Pennsylvania.

To do so, the Lackawanna Cutoff (Port Morris - Slateford Junction, Pennsylvania) must be restored, which can then utilize short line Delaware-Lackawanna Railroad's trackage (ex-Lackawanna) into Scranton.

This is the closest the famous cutoff has been yet to finally seeing trains again after nearly 40 years.  It appears with the tunnel's restoration it will finally become reality.

  1. Home
  2.  ›
  3. Landmarks
  4.  ›
  5. Lackawanna Cutoff

Recent Articles

  1. Michigan Central Railroad

    Jun 09, 23 02:38 PM

    The Michigan Central was a 1,700-mile system which served much of Michigan and Buffalo via southern Ontario. It became part of the New York Central.

    Read More

  2. Maine Central Railroad

    Jun 09, 23 02:37 PM

    The Maine Central Railroad has been serving its home state for 150 years. Today, it is still on paper albeit owned by Pan Am Railways.

    Read More

  3. Erie Railroad

    Jun 09, 23 02:35 PM

    The Erie Railroad's earliest history dates back to the 1830s and later in the 19th century as one of the most powerful lines.

    Read More

  4. Maryland and Pennsylvania Railroad (The "Ma & Pa")

    Jun 09, 23 02:30 PM

    The Maryland & Pennsylvania Railroad, affectionately remembered as the Ma & Pa, served Baltimore and points north. In 1999 it became the York Railway.

    Read More

  5. Tennessee Interurban and Streetcar History

    Jun 09, 23 02:25 PM

    Tennessee contained two interurban systems, as well as a few other local streetcar operations. Learn more about these little electrified lines here.

    Read More

Wes Barris's is simply the best web resource on the study of steam locomotives. 

It is difficult to truly articulate just how much material can be found at this website. 

It is quite staggering and a must visit!