Daylighting a tunnel is to remove its "roof" of overlying rock and soil, exposing the railway or roadway to daylight and converting it to a railway or roadway cut. Tunnels are often daylighted to improve vertical or horizontal clearances—for example, to accommodate double-stack container trains or electrifying rail lines, where increasing the size of the tunnel bore is impractical.

List of daylighted tunnels

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The short remaining portion of Liverpool's Lime Street Station tunnel can be seen west of Edge Hill Station.

See also

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References

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  1. ^ "Duaringa (front)" (Map). Queensland Government. 1943. Retrieved 25 April 2024.
  2. ^ "ROCKHAMPTON". Morning Bulletin. Vol. LXIV, no. 11, 650. Queensland, Australia. 4 April 1903. p. 5. Retrieved 25 April 2024 – via National Library of Australia.
  3. ^ "On the Northern Railway". The Brisbane Courier. Vol. XXXIII, no. 3, 461. Queensland, Australia. 21 June 1878. p. 3. Retrieved 25 April 2024 – via National Library of Australia.
  4. ^ "The Morning Bulletin, ROCKHAMPTON". Morning Bulletin. Vol. XXIII, no. 3495. Queensland, Australia. 25 June 1879. p. 2. Retrieved 25 April 2024 – via National Library of Australia.
  5. ^ "A Banana Tree Growing Vigorously in the Wet – Joh Bjelke-Petersen and the Queensland Railways 1960s to 1980s: Part 2". Under The Clocks. 2021-12-07. Retrieved 2024-04-25.
  6. ^ "Pinera Tunnel", Wikipedia, 2024-06-04, retrieved 2024-08-20
  7. ^ "Arncliffe Tunnel". www.nswrail.net. Retrieved 2024-09-01.
  8. ^ "Waterfall Tunnel". www.nswrail.net. Retrieved 2024-09-01.
  9. ^ The Encyclopedia of New Zealand: Daylighting a Manawatū Gorge tunnel
  10. ^ a b c d e "NZR Tunnels - Railway Knowledge Base for New Zealand". rkbnz.nz. Retrieved 2024-10-04.
  11. ^ F. C. Weeks et al., "Tunnel 'Daylighting' on the Alaska Railroad," Transportation Research Record No. 1119, Geotechnology (1987).