Conemaugh Line

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Conemaugh Line
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Map of the Western Pennsylvania Railroad, the predecessor to the Conemaugh line
Overview
StatusOperational
OwnerNorfolk Southern
LocaleWestern Pennsylvania, U.S.
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Service
TypeFreight rail
SystemNorfolk Southern
Operator(s)Norfolk Southern
History
Opened1863 (independent), 1865 (PRR), 1968 (PC), 1976 (Conrail), 1999 (NS)
Closed1865 (independent), 1968 (PRR), 1976 (PC), 1999 (Conrail)
Technical
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Number of tracks1
Track gauge1,435 mm (Page Template:Fraction/styles.css has no content.4 ft 8+1⁄2 in) standard gauge
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Route map
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The Conemaugh Line is a rail line owned and operated by the Norfolk Southern Railway in the U.S. state of Pennsylvania. The line runs from Conpit Junction, Pennsylvania (west of New Florence) northwest and southwest to Pittsburgh,[1] following the Conemaugh, Kiskiminetas, and Allegheny rivers, on the former main line of the Conemaugh Branch of the Pennsylvania Railroad (PRR).[2] At its east end, it merges with the Pittsburgh Line; its west end is where it merges with the Fort Wayne Line at the northwestern tip of Allegheny Commons Park. The PRR used the line as a low-grade alternate to its main line, which is now part of Norfolk Southern's Pittsburgh Line, in the Pittsburgh area.[3]

History

File:Western Pennsylvania RR 1882.jpg
Share of the Western Pennsylvania Railroad Company, issued 15 December 1882

A short branch of the Pennsylvania Railroad from Torrance on the main line to Blairsville opened in 1851; only a small piece of this at Blairsville is still in use.[4] The Western Pennsylvania Railroad (formerly the North Western Railroad)[5] opened from Blairsville west to Saltsburg in 1863[6] and to Kiskiminetas (Kiski) Junction (near Freeport) in 1864 or 1865.[7][8] The line from Freeport to Allegheny (Pittsburgh) opened in 1866.[9] A new, more direct line east from Blairsville was built by the Western Penn in the early 1880s, meeting the PRR main line at Bolivar.[10] The PRR's Sang Hollow Extension, now Main 3 of the Pittsburgh Line east of CP Conpit, opened east to Johnstown in 1876;[11] the portion east of Conpit Junction was operated as a one-way line for westbound freight.[12] All of the aforementioned lines became part of the PRR through leases and mergers, became Penn Central in 1968, and were taken over by Conrail in 1976. In the 1999 breakup of Conrail, the line was assigned to Norfolk Southern.

Around 1950, a (then double-track) 16.94-mile (27.26 km) portion of the line was relocated to a higher elevation, as part of a flood control project on the Conemaugh River.[13][14][15] The previous alignment (built in 1907)[16] would later become the bulk of the West Penn Trail.

The Conemaugh Line is notable for being the recipient of a variation of the PRR's cab signal system in 1940, which eliminated the wayside signals between interlockings from Conemaugh Junction to Kiski Junction, requiring the operation of trains by cab signal indication only.[17] This system (whose visual NORAC Rule 562), modified by Conrail to operate bidirectionally. Until 2019, trackage from Pittsburgh to Kiski used wayside signaling in place of cab signals. By 2020, the line received Positive Train Control and upgrades to the signaling system. The upgrades to the signal system included the use of cab signaling across the entire Conemaugh and Pittsburgh Lines and the elimination of all wayside intermediate signals.[18] Furthermore, all legacy signaling systems were discontinued, leaving only Safetran wayside signals at interlockings only. The line is dispatched remotely in Atlanta, GA by the Pittsburgh East dispatcher.

See also

References

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  1. ^ the NS Conemaugh Line
  2. ^ Page Module:Citation/CS1/styles.css has no content."Welcome".
  3. ^ Page Module:Citation/CS1/styles.css has no content."Keystone Crossings: Hobo's Guide to the Pennsy: The Allegheny Valley Railroad". Retrieved 2006-11-30. [dead link]
  4. ^ Page Module:Citation/CS1/styles.css has no content."PRR Chronology, 1851" (PDF). (67.7 KiB), March 2005 Edition
  5. ^ Page Module:Citation/CS1/styles.css has no content.Wilson, William Bender (1899). History of the Pennsylvania Railroad Company: With Plan of Organization, Portraits of Officials and Biographical Sketches. Philadelphia: Henry T. Coates & Co. p. 213.
  6. ^ Page Module:Citation/CS1/styles.css has no content."PRR Chronology, 1863" (PDF). (140 KiB), June 2004 Edition
  7. ^ Page Module:Citation/CS1/styles.css has no content."PRR Chronology, 1864" (PDF). (109 KiB), June 2004 Edition
  8. ^ Page Module:Citation/CS1/styles.css has no content."PRR Chronology, 1865" (PDF). (110 KiB), June 2004 Edition
  9. ^ Page Module:Citation/CS1/styles.css has no content."PRR Chronology, 1866" (PDF). (89.2 KiB), June 2004 Edition
  10. ^ PRR Corporate History: Pennsylvania Railroad Script error: No such module "webarchive".
  11. ^ Page Module:Citation/CS1/styles.css has no content."PRR Chronology, 1876" (PDF). (116 KiB), April 2006 Edition
  12. ^ Page Module:Citation/CS1/styles.css has no content."PRR Interlocking Diagrams: Altoona to Pittsburgh Main Line". Retrieved 2006-11-30.{{cite web}}: CS1 maint: deprecated archival service (link)
  13. ^ Page Module:Citation/CS1/styles.css has no content."Major Line Relocation". Railway Age. 1949-05-28. Retrieved 2018-06-03.
  14. ^ Page Module:Citation/CS1/styles.css has no content."Report of the Chief of Engineers U.S. Army". 1955.
  15. ^ Page Module:Citation/CS1/styles.css has no content."The Railway Gazette". October 1947.
  16. ^ Page Module:Citation/CS1/styles.css has no content."Old Industry of Southwestern Pennsylvania : Off of the West Penn Trail, Conemaugh River Lake Section/Bow Ridge Section". 4 August 2013.
  17. ^ Page Module:Citation/CS1/styles.css has no content."PRR Chronology, 1940" (PDF). (35.3 KiB), August 2004 Edition
  18. ^ Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System
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