Henryton Tunnel
Henryton, Maryland, Maryland, Carroll County, Maryland
Herausgegeben: Donatienne Ruby, Christabel
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Henryton Tunnel, located near Henryton in southern Carroll County, Maryland, is the third-oldest tunnel in the world that remains in active railroad use. Constructed by the Baltimore and Ohio Railroad and opened around 1850, it was the first tunnel constructed on the B&O's Old Main Line. In 1865 the tunnel was widened to accommodate double track. It was rebuilt into its current form in 1903. The tunnel has brick portals and lining.
