It could vary from a few miles to hundreds of miles.
The definition "short line" is just a short-cut description of privately owned sections of track that (usually) branch off of a main line (Class A) railroad.
It may supply transport for a single factory, join two factories, or be the remnant of an abandoned main line RR.
Oregon Short Line Railroad was created in 1897.
Oregon Short Line Railroad ended in 1987.
Short Line Railroad of the Year was created in 1992.
Darien Short Line Railroad ended in 1894.
The names are all 1800s Railroads: The Short Line Railroad; The Reading Railroad; and the Pennsylvania Railroad.
Oregon Short Line Railroad Depot was created in 1907.
That would be the 'Short Line' railroad.
reading railroad, Pennsylvania railroad, B. & O. railroad, short line railroad
Reading,Pennsylvania,B&O,and Short Line Railroad
a short railroad feeder owned or controlled and operated by an industrial concern -called also tap line
B&O Railroad, Short Line, Reading Railroad, Pennsylvania Railroad. Source: http://en.wikipedia.org/wiki/Monopoly_(game)#Atlantic_City_version
The Short Line is said to refer to the Shore Fast Line, an interurban electric streetcar. However, there was an actual railroad, the Wildwood and Delaware Bay Short Line Railroad, which merged with the Atlantic City Railroad in 1934. ACRR was a subsidiary of the Pennsylvania-Reading Seashore Lines, which served the New Jersey coast. The other railroads were also based on existing ones in the area of Atlantic City, NJ in the 1930s: The Reading Railroad began as the Philadelphia and Reading Railroad in 1833. The Pennsylvania Railroad was founded in 1846. The B&O Railroad was the Baltimore and Ohio Railroad, now part of CSX. (It did not actually serve Atlantic City.)