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  2. List of Erie Railroad structures documented by the Historic ...

    en.wikipedia.org/wiki/List_of_Erie_Railroad...

    Erie Railway and Pennsylvania Railroad, Horseheads Interlocking Tower Tower Horseheads: Chemung: New York NY-33: Erie Railway, Hornell Station 1971 Shop Hornell: Steuben: New York NY-34: Erie Railway, Hornell Erecting Shop 1971 Shop Hornell: Steuben: New York NY-35: Erie Railway, Corning Side Hill Cut 1971 Cut Corning: Steuben: New York NY-36

  3. Interlocking - Wikipedia

    en.wikipedia.org/wiki/Interlocking

    An interlocking system is designed so that it is impossible to display a signal to proceed unless the route to be used is proven safe. Interlocking is a safety measure designed to prevent signals and points/switches from being changed in an improper sequence. For example, interlocking would prevent a signal from being changed to indicate a ...

  4. Harris Switch Tower - Wikipedia

    en.wikipedia.org/wiki/Harris_Switch_Tower

    Harris Switch Tower, also known as HG Tower or Harris Tower, is an interlocking tower in Harrisburg, Pennsylvania in the United States. The tower was built in 1929 by the Pennsylvania Railroad and remained in operation until it was closed in 1991 by Amtrak .

  5. Chicago and Western Indiana Railroad - Wikipedia

    en.wikipedia.org/wiki/Chicago_and_Western...

    The Chicago and Western Indiana Railroad operated an extensive number of interlocking tower system on its system. From the north, towers were as follows: 12th Street tower, 15th Street tower, 16th Street tower, 21st Street tower, 40th Street tower, 47th Street tower, Ford Street tower (59th Street), 74th Street tower, 81st Street tower, Oakdale (later remote controlled by 81st Street), Pullman ...

  6. Bowie Railroad Buildings - Wikipedia

    en.wikipedia.org/wiki/Bowie_Railroad_Buildings

    It was named after Oden Bowie, the railroad's proprietor, who served as the governor of Maryland from 1869 to 1872. [4] In the 1880s, the development of the interlocking system allowed a single worker in an interlocking tower to control multiple railroad switches by means of electrical controls. The original Bowie Tower, which controlled the ...

  7. Harold Interlocking - Wikipedia

    en.wikipedia.org/wiki/Harold_Interlocking

    Harold Interlocking and Sunnyside Yard in 1977. Harold Interlocking is a large railroad junction in New York City.The busiest rail junction in the United States, [1] it serves trains on Amtrak's Northeast Corridor and the Long Island Rail Road's Main Line and Port Washington Branch, which diverge at the junction.

  8. Erie Railroad Signal Tower, Waldwick Yard - Wikipedia

    en.wikipedia.org/wiki/Erie_Railroad_Signal_Tower...

    Constructed in 1848, the Paterson and Ramapo Railroad through Waldwick created a connection between the Erie Railroad at Suffern, New York to Paterson, where it linked with the Paterson and Hudson River Railroad to the terminal and ferry in Jersey City. A station at Waldwick was established in 1887. The yard around the depot was expanded in ...

  9. Bell Tower (Pennsylvania Railroad) - Wikipedia

    en.wikipedia.org/wiki/Bell_Tower_(Pennsylvania...

    Hook Tower was built by the Pennsylvania Railroad to control the main line and the Chester and Delaware River Railroad. This railroad line saw freight train service provided by the PRR after PRR assumed operations of the Chester & Delaware River. In fact, it was still in use after the PRR electrified the Northeast Corridor.