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The Gallitzin Tunnels in Gallitzin, Pennsylvania, formed the Pennsylvania Railroad's passage through the Allegheny Mountains in western Pennsylvania. Their ownership has since passed to Penn Central Transportation Company, then to Conrail, and most recently to the Norfolk Southern Railway. Just east of the tunnels is the famous Horseshoe Curve. The first tunnel, which is the middle of the three bores through the mountain, was built by the Pennsylvania Railroad (PRR) from 1851 to 1854. Originally named "Summit" Tunnel, it is 3,612 feet long at an elevation of 2,167 feet above mean sea level and is known today as the Allegheny Tunnel. The second tunnel, the southernmost of the bores, was constructed by the Commonwealth of Pennsylvania from 1852 to 1855 as part of the New Portage Railroad (NPRR). In 1857, the PRR bought the New Portage Railroad from the Commonwealth, and appropriated the "Allegheny" name for its "Summit" tunnel. The PRR took the New Portage Tunnel out of service shortly thereafter. In the 1890s, it was expanded to two tracks and used as the primary route for eastbound traffic. The third tunnel, the Gallitzin Tunnel, was begun in 1902 and opened in 1904 immediately to the north of the Allegheny Tunnel. In the early 1990s, Conrail (with money from the Commonwealth of Pennsylvania) enlarged the Allegheny and New Portage Tunnels to accommodate double-stack container on flatcar (COFC) trains. The New Portage Tunnel was opened for eastbound COFC traffic in 1993. The Allegheny Tunnel was enlarged from its original 1854 cross-section to contain two tracks for that could be used for double-stack traffic in either direction. The work was completed in September 1995, and the Gallitzin Tunnel (which was not enlarged) was taken out of service. By the 2000s, Amtrak's Pennsylvanian trains traveled through the tunnel. ==Gallitzin Tunnels Park & Museum== Near the closed tunnels sits the Gallitzin Tunnels Park & Museum, which has a restored 1942 Pennsylvania caboose whose interior is visible to visitors. The museum, which sits across the street, has exhibits about the area's railroad, industrial, social, and religious heritage; a gift shop, and a theater. The museum building also houses borough offices, a police station, a library, and an archival room. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Gallitzin Tunnel」の詳細全文を読む スポンサード リンク
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