High Quality Content by WIKIPEDIA articles! The Lackawanna Cut-Off is a former double-track railroad line, 28.45 miles (45.8 km) long, built by the Delaware, Lackawanna and Western Railroad between 1908 and 1911. The last major railroad mainline to be constructed in New Jersey, the Cut-Off operated between 1911 and 1979. It was abandoned in 1983 and its tracks were removed the following year.