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  2. Wrights tunnel - Wikipedia

    en.wikipedia.org/wiki/Wrights_Tunnel

    The tunnel was repaired thereafter and widened to make way for standard gauge trains, which would begin using the tunnel in 1909. The western portal was also replaced due to the earthquake and a brick ceiling was installed for the first three hundred feet of the tunnel to prevent collapse from the sandstone present there. The brick ceiling is ...

  3. Railway tunnels in Victoria - Wikipedia

    en.wikipedia.org/wiki/Railway_tunnels_in_Victoria

    The Australian state of Victoria has only ever had about 10 tunnels on its railway network, with some others on private narrow gauge tramways. This is due to the relatively easy terrain through which most of the lines were built. The portal of the Big Hill railway tunnel, 390 metres long, originally double-tracked

  4. The Biggest Little Railway in the World - Wikipedia

    en.wikipedia.org/wiki/The_Biggest_Little_Railway...

    The Biggest Little Railway in the World (BLR) was a temporary 71 mile (114 km) 1.25 inches (32 mm) O-gauge model railway from Fort William to the City of Inverness, the two largest settlements in the Scottish Highlands.

  5. OO gauge - Wikipedia

    en.wikipedia.org/wiki/OO_gauge

    OO gauge or OO scale (also, 00 gauge and 00 scale) is the most popular standard gauge model railway standard in the United Kingdom, [1] outside of which it is virtually unknown. OO gauge is one of several 4 mm-scale standards (4 mm to 1 ft (304.8 mm), or 1:76.2), and the only one to be marketed by major manufacturers.

  6. Loading gauge - Wikipedia

    en.wikipedia.org/wiki/Loading_gauge

    The structure gauge S requires buildings to be placed at minimum of 3,100 mm (10 ft 2 + 1 ⁄ 16 in) from the track centreline. Bridges and tunnels must have a clearance of at least 4,900 mm (16 ft 15 ⁄ 16 in) wide and 6,400 mm (20 ft 11 + 15 ⁄ 16 in) high.

  7. St. Clair Tunnel - Wikipedia

    en.wikipedia.org/wiki/St._Clair_Tunnel

    The tunnel measured 6,025 feet (1,836 m) from portal to portal. The actual width of the St. Clair River at this crossing is only 2,290 feet (698 m). The tube had a diameter of 19 feet 10 inches (6.05 m) and hosted a single standard gauge track.

  8. Lyttelton Rail Tunnel - Wikipedia

    en.wikipedia.org/wiki/Lyttelton_Rail_Tunnel

    The Lyttelton Rail Tunnel, initially called the Moorhouse Tunnel, links the city of Christchurch with the port of Lyttelton in the Canterbury region of New Zealand's South Island. It is the country's oldest operational rail tunnel , and is on the Lyttelton Line , one of the first railways built by Canterbury Provincial Railways .

  9. Gallitzin Tunnel - Wikipedia

    en.wikipedia.org/wiki/Gallitzin_Tunnel

    Gallitzin Tunnel 0 (1 track 1904-1995), Allegheny Tunnel 2 (1 track 1904-1995), New Portage Tunnel 1 (2 tracks 1898-1971) Track gauge: 4 feet, 8 and one-half inches (56.5 inches) Highest elevation: Gallitzin and Allegheny Tunnels 2,167 feet (at west tunnel portals), New Portage Tunnel 2,198 feet (at AR tower west of west tunnel portal)

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