The railroad roughly parallels U.S. 411, and is likewise a well-used shortcut around Chattanooga for traffic between Atlanta and Knoxville.
The railroad started in 1854 and paralleled the Cincinnati and Whitewater Canal.
While Titusville thrived thanks to this new transportation connection, Enterprise lost stature as a steamboat port, since Henry Plant's railroad paralleled the St. Johns River and greatly reduced travel times to Jacksonville.
An inactive railroad owned by the State of New Hampshire parallels the Moose River for most of the river's length.
Both railroads parallel each other north of Bakersfield through the San Joaquin Valley.
By Williamstown, the railroad had dropped to the bottom of the valley and paralleled Wiconisco Creek.
Paralleling the highway is a railroad, now used only to haul freight.
From there, the railroad paralleled Fishing Creek to the northern reaches of Bloomsburg, at which point it turned northeast to Lighstreet, then north to Orangeville.
The railroad paralleled the Kiamichi River throughout much of its route in present-day Pushmataha County, Oklahoma.
The new permanent railroad closely paralleled the canal where it could and was moved and reconstructed where it interfered with the canal work.