Cincinnati, New Orleans and Texas Pacific Railway

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Cincinnati, New Orleans and Texas Pacific Railway
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Reporting marks CNTP
Locale Ohio, Kentucky, Tennessee
Dates of operation 1877 – present
Track gauge 4 ft 8½ in (1435 mm) (standard gauge)5 ft (1524 mm), converted to standard gauge in 1886
Headquarters Cincinnati, Ohio

The Cincinnati, New Orleans and Texas Pacific Railway (CNO&TP) (AAR reporting marks CNTP) is a railroad that runs from Cincinnati, Ohio south to Chattanooga, Tennessee, forming part of the Norfolk Southern Railway system. Originally built to 5 foot (1524 mm) broad gauge as the Cincinnati Southern Railway, the line was converted to standard gauge, 4 ft 8½ in (1435 mm), in 13 hours in 1886.

The CNO&TP is separated into three districts. The First District is between Cincinnati, Ohio, and Danville, Kentucky. The Second District runs between Danville and Oakdale, Tennessee, while the Third District is from Oakdale to Chattanooga. The Second District is commonly called the "Rathole" due the steep grades, 27 tunnels, and numerous curves which were once this line's signature. While several projects over the span of 60 years eliminated several problem areas, the Southern Railway's line improvement project between 1961 and 1963 is probably the best known. This project saw numerous cuts and line relocations to bypass tunnels and reduce the steep grades and tight curves. Only Tunnels #22 and #24 at Nemo, Tennessee and Tunnels #25 and #26 at Oakdale remain on the line; all but #25 were built brand-new in the 1960s. The late 1990s saw another improvement with the Norfolk Southern Railway double tracking the segment south of Somerset, Kentucky, between Tateville and KD Tower (near Greenwood, Kentucky).

The Cincinnati, New Orleans and Texas Pacific is owned by the city of Cincinnati and is operated by Norfolk Southern as part of the Central Division. Between Cincinnati and Somerset, the line is under control of the North End Dispatcher, Knoxville, Tennessee. Somerset to Hixson, Tennessee, is dispatched by the South End Dispatcher, Knoxville. The CT (Chattanooga Terminal) Dispatcher controls the last few miles as well as a few surrounding lines into Chattanooga.

More than 50 trains a day can be seen on the CNO&TP, with the heaviest concentration between Danville and Harriman, Tennessee. Quite a bit of the traffic is intermodal and automotive. General manifests, local freights, grain, coal, and other bulk commodities make up the rest of the traffic.

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Current (operating) Class I railroads of North America
United States: AMTK, BNSF, CSXT, GTW, KCS, NS, SOO, UP - Canada: CN, CP, VIA - Mexico: FXE, TFM, KCSM
See also: List of USA/Canada/Mexico Class I Railroads, List of USA/Canadian Class II Railroads, Class III railroad, Class 2 Railroads in Canada,
Short-line railroad, List of United States railroads, List of Canadian railroads, list of Mexican railroads
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