| 1. | Pirpanjal railway tunnel was completed and testing was being conducted in 2012.
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| 2. | The Railway Tunnel and Molossadie Passage enter the chamber from the north.
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| 3. | Greenock has the longest bored railway tunnel in Scotland at in length.
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| 4. | Fake towers and a fake railway tunnel were constructed for the film.
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| 5. | At the time, this was the longest railway tunnel in North America.
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| 6. | There are two former railway tunnels on the route, Oxendon ( ).
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| 7. | The south entrance arch to Prestbury Railway Tunnel is grade II listed.
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| 8. | The station is close to the South-Eastern portal of Penge Railway Tunnel.
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| 9. | Otira was originally a stop on the railway tunnel opened in 1923.
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| 10. | The full plan would require restoration of the former Chilcompton railway tunnel.
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