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  2. Horseshoe Curve (Pennsylvania) - Wikipedia

    en.wikipedia.org/wiki/Horseshoe_Curve_(Pennsylvania)

    November 13, 1966. The Horseshoe Curve is a three-track railroad curve on Norfolk Southern Railway 's Pittsburgh Line in Blair County, Pennsylvania. The curve is roughly 2,375 feet (700 m) long and 1,300 feet (400 m) in diameter. Completed in 1854 by the Pennsylvania Railroad as a way to reduce the westbound grade to the summit of the Allegheny ...

  3. Pittsburgh Line - Wikipedia

    en.wikipedia.org/wiki/Pittsburgh_Line

    Pittsburgh Line. The Pittsburgh Line is the Norfolk Southern Railway 's primary east–west artery in its Pittsburgh Division and Harrisburg Division across the U.S. state of Pennsylvania and is part of the Keystone Corridor, Amtrak -Norfolk Southern's combined rail corridor. The Pittsburgh Line spans 248 miles (399 km) between its namesake ...

  4. Track gauge in the United States - Wikipedia

    en.wikipedia.org/wiki/Track_gauge_in_the_United...

    Track gauge. Originally, various track gauges were used in the United States. Some railways, primarily in the northeast, used standard gauge of 4 ft 8⁄ in (1,435 mm); others used gauges ranging from 2 ft (610 mm) to 6 ft (1,829 mm). As a general rule, southern railroads were built to one or another broad gauge, mostly 5 ft (1,524 mm), while ...

  5. Pennsylvania Railroad - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Railroad

    The Pennsylvania Railroad (reporting mark PRR), legal name The Pennsylvania Railroad Company, also known as the " Pennsy ", was an American Class I railroad that was established in 1846 and headquartered in Philadelphia, Pennsylvania. At its peak in 1882, the Pennsylvania Railroad was the largest railroad (by traffic and revenue), the largest ...

  6. Harrisburg Line - Wikipedia

    en.wikipedia.org/wiki/Harrisburg_Line

    April 1, 1976; the line’s oldest trackage opened on July 16, 1838. The Harrisburg Line is a rail line owned and operated by the Norfolk Southern Railway (NS) in the U.S. state of Pennsylvania. The line runs from Philadelphia (HP 5.2) west to Harrisburg (HP 112.9). The Harrisburg Line was formed the day Conrail began operations, April 1, 1976 ...

  7. Neshaminy Line - Wikipedia

    en.wikipedia.org/wiki/Neshaminy_Line

    The Neshaminy Line is a railway line in the states of Pennsylvania and New Jersey. It runs 21.7 miles (34.9 km) from a junction with the SEPTA Main Line just north of Jenkintown–Wyncote to West Trenton, just across the Delaware River. It was originally built in 1876 as part of the much longer New York Branch, which continued north to Bound ...

  8. Enola Yard - Wikipedia

    en.wikipedia.org/wiki/Enola_Yard

    Enola Yard is a large rail yard located in East Pennsboro Township, Pennsylvania, along the western shore of the Susquehanna River in Harrisburg, Pennsylvania. Built in 1905 and expanded through the 1930s, Enola yard was the world's largest freight yard in 1956. [1] It remains in operation today, though it has long since been eclipsed in size ...

  9. Sand Patch Grade - Wikipedia

    en.wikipedia.org/wiki/Sand_Patch_Grade

    Sand Patch Grade is an approximately 100-mile-long (160 km) section of railroad track known for its steep grades and curves through the Allegheny Mountains of Pennsylvania and western Maryland. [1] Dropping over 1,000 feet (300 m) in about 20 miles (32 km) and with grades as much as 2%, [2] Sand Patch Grade is one of the steepest railroad ...