Editing List of tunnels in New Zealand (section)

===Rail tunnels===
{{see also|Rail transport in New Zealand}}
;Longest bored tunnels
From longest to shortest.
#[[Kaimai Tunnel|Kaimai]] – 8879&nbsp;m – opened 12 September 1978 – near Apata on the [[East Coast Main Trunk]] railway line to [[Tauranga]], the longest rail tunnel in New Zealand.
#[[Rimutaka Tunnel|Rimutaka]] – 8798&nbsp;m – opened 3 November 1955 – between [[Upper Hutt, New Zealand|Upper Hutt]] (Wellington) and [[Featherston, New Zealand|Featherston]] ([[Wairarapa]]), replaced the [[Rimutaka Incline]], a [[Fell mountain railway system|Fell]] [[mountain railway]], the longest tunnel in New Zealand that carries regular passenger trains.
#[[Otira Tunnel|Otira]] – 8566&nbsp;m – opened 1923 – between [[Arthur's Pass]] and Otira, in the [[Southern Alps]] on the transalpine [[Midland Line, New Zealand|Midland line]] – continuous 1 in 33 grade – electrified until 1997.
#Tawa No 2 – 4324&nbsp;m – opened 1935, goods on one line, 1937 all traffic – longest double-track tunnel in New Zealand.  Between [[Ngauranga]] ([[Wellington]]) and [[Glenside, New Zealand|Glenside]] ([[Tawa, New Zealand|Tawa]]). With the Tawa No 1 Tunnel (1238&nbsp;m), part of the [[Tawa Flat deviation]].
#Tikiwhata – 2989&nbsp;m – opened 1943, between [[Wairoa]] and [[Gisborne, New Zealand|Gisborne]].
#[[Lyttelton Rail Tunnel|Lyttelton]] – 2596&nbsp;m – opened 9 December 1867,<ref>{{cite web|url=http://library.christchurch.org.nz/heritage/earlychristchurch/lytteltontunnel.asp
|title=The Lyttelton Tunnel
|publisher=Christchurch City Council
|accessdate=2006-08-08}}</ref> between [[Heathcote Valley]] ([[Christchurch]]) and [[Lyttelton, New Zealand|Lyttelton]].
#[[Turakina, New Zealand|Turakina]] – 2091&nbsp;m – opened 1947, between [[Marton, New Zealand|Marton]] and [[Whanganui]].

;Shortest bored tunnels
#A 39.83 m long tunnel – opened 1906, between Staircase and Avoca, [[Midland Line, New Zealand|Midland Line]].
#A 42.05 m long tunnel – opened 1891, near [[Woodville, New Zealand|Woodville]], in the [[Manawatū Gorge]] – was daylighted in 2008.

[[File:Tranzrail bumblebee.jpg|thumb|right|500px|An EF electric locomotive on the [[North Island Main Trunk]] line, 2006]]

;Other rail tunnels
*[[Purewa Tunnel]], an 800m tunnel on the [[Eastern Line (Auckland)|Eastern Line]] in Auckland
*[[Poro-O-Tarao Tunnel]] an 1,272m tunnel on the [[North Island Main Trunk]] line in the [[King Country]] (replacing an 1880s tunnel)

;Disused rail tunnels, North Island
*On the [[Wairarapa Line]] before the opening of the [[Rimutaka Tunnel]] in 1955:  
**Cruickshanks – opened 1 January 1878, between Mangaroa and [[Upper Hutt]].
**Mangaroa – 152 m – opened 1 January 1878, at Tunnel Gully recreation area, [[Te Mārua]], [[Upper Hutt]]. Now a walkway.
**Summit – 584 m, and three shorter tunnels (Pakuratahi, Siberia, Prices) :opened 12 October 1878 on the [[Rimutaka Incline]]. On the [[Rimutaka Rail Trail]].
*Okaihau – on the never-opened extension of the [[Okaihau Branch]] to [[Rangiahua]], unused but can be walked through – easily spotted from SH1 passing Okaihau township. This tunnel is part of the Opua to Horeke Cycleway
*[[Parnell Tunnel]] – single track, on the [[Newmarket Line]], adjacent to the current double-track tunnel. Closed, with no public access.
*Karangahake – 1100 m, in the [[Karangahake Gorge]], on the former East Coast Main Trunk, closed in 1978. Now a combined walkway and cycle path (part of the [[Hauraki Rail Trail]]).
*No.8 tunnel bypassed in 1985 by the Mangaonoho Deviation of the North Island Main Trunk. (The first seven tunnel numbers are from the [[Johnsonville Branch]], the former NIMT line.)
*No.19 tunnel daylighted in 1972, on the section of line bypassed in 1985 by the Mangaonoho Deviation of the North Island Main Trunk.
*[[Mangaonoho railway station#Makōhine Tunnel|No.9 tunnel]] opened out (day-lighted)<ref>New Zealand Railway & Tramway Atlas fourth Ed</ref> at the west end of the Makohine Viaduct in 1984, on the North Island Main Trunk.
*No.10A, 10B, 10C, 10D, 10E, 10F tunnels bypassed in 1981 by the Mangaweka Deviation of the North Island Main Trunk. All are on private land.
*No.11 tunnel south of Taihape bypassed in 1985 by a deviation of the North Island Main Trunk.
*No.12 (Hedgehog) tunnel north of Taihape bypassed in 1985 by a deviation of the North Island Main Trunk. Adjacent to State Highway 1. Tunnel no longer exists after a realignment of SH1.
*No.15 tunnel bypassed in 1987 by the Ohakune-Horopito deviation of the North Island Main Trunk. Accessible from one end only.
* Mercer tunnel daylighted in 1937. (A total of 13 tunnels have been removed from the NIMT from Mangaonoho to Mercer. The total length of these removed tunnels is 2,642 metres.)
*[[Poro-O-Tarao Tunnel]] – 1071 m, replaced by new tunnel on a deviation in 1980.
*Four tunnels on the closed [[Moutohora Branch]], lengths (Nos 1 to 4); 185m, 258m, 45m, 90m. One tunnel is accessible on a public walkway, the others can be viewed from public roads.
*Historically one or more tunnels may have been built on the closed [[Ngatapa Branch]] but no trace exists today.
*No 24 tunnel on the [[Palmerston North]] – Gisborne line – 123 m long (collapsed).
*No 12 tunnel – 27m, on the [[Wellington & Manawatu Railway]] (now [[Kapiti Line|Kapiti]] section of NIMT) between [[Paekākāriki]] and [[Paraparaumu]] – abandoned in 1900.
*No. 3, 4 and 5 tunnels on the Palmerston North Gisborne line were daylighted in 2007.
*No.4 ([[Kai Iwi]]) tunnel on the Marton New Plymouth Line was bypassed in 2008.

;Disused rail tunnels, South Island
*Hunts Road – former [[Catlins River Branch]], 221 m long. Public walkway access. This was the southernmost tunnel in New Zealand.
*[[Wyndham Branch|Glenham Branch]], 301 m long. Possible public access. The second most southerly tunnel.
*Spooners Range Tunnel – 1352 m long, on the closed [[Nelson Section]]. Accessible by public walkway, this is the longest disused rail tunnel in New Zealand.
*Kawatiri Tunnel – 185 m long, also on the closed [[Nelson Section]]. Accessible by public walkway.
*No 4 Tunnel – south of [[Oaro]] township on the [[Main North Line, New Zealand|Main North Line]]. Access on foot south of township via a railway bridge.
*Chasm Creek – former Seddonville Branch. Accessible by public walkway.
*Charming Creek – former private coal railway. Accessible by public walkway.
*Former coal tramways at [[Stockton, New Zealand|Stockton]] and [[Denniston, New Zealand|Denniston]]. Public access.
*[[Cape Foulwind]] – former quarry line. Public access but tunnel has largely collapsed.
*Rewanui Incline – two short tunnels now used by access road.
*Puketeraki – 157 m long. Line deviated around in a cutting. Partly collapsed and ends have been fenced over. Abandoned about 1936<ref>http://rsnz.natlib.govt.nz/volume/rsnz_70/rsnz_70_03_004000.html Transactions and Proceedings of the Royal Society of New Zealand, Vol 70</ref>
*[[Roseneath, Otago|Roseneath]], [[Dunedin]] – 101 m long, line deviated through new tunnel. Status unknown. Appears to have been filled in at entrances.
*[[Caversham, New Zealand|Caversham]], [http://www.cavershamtunnel.org.nz/briefhist/ Tunnel History] Dunedin – 865 m long, line deviated through new double-track tunnel. Public access to both ends but it is quite muddy. The access down the steps between intersections with Ensor Street and Townleys Road has been fenced off, but easy to get under, on the opposite side of the road to the Caversham entrance of the current tunnel. The old tunnel has been suggested as a possible cycle route linking central Dunedin with its western suburbs.
*Chain Hills (Wingatui) – 462 m long, line deviated through new double-track tunnel.[https://www.panoramio.com/photo/15315649 Tunnel Images] Tunnel gated shut both ends and on private land.
*Three tunnels on the [[Otago Central Rail Trail]] (former [[Otago Central Railway]]), ranging in length from 152 to 229 m. All have public access.
*Three tunnels on the former [[Roxburgh Branch]] ranging from 226 to 443 m. All three tunnels are now part of a rail trail with public access.
*Rakis and Tapui Tunnels on the former [[Ngapara and Tokarahi Branches|Tokarahi Branch]]. Can be seen from roads, on private land.
*Conical Hill – 71 m long, on the former [[Tapanui Branch]]. Public access through walkway.
*Tunnel Hill Historic Reserve – between Balclutha to Owaka, 200 m long,<ref>{{Cite web|title = Clutha Country|url = http://www.cluthacountry.co.nz/Visit/must.html|date = 2009-04-18|accessdate = 2015-08-02|archiveurl = https://web.archive.org/web/20090418155232/http://www.cluthacountry.co.nz/Visit/must.html|archivedate=2009-04-18 |url-status = dead}}</ref> public access through walkway.
*No.22 Tunnel on the [[Main North Line, New Zealand|Main North Line]]. Daylighted in 1981.
*No.23 Tunnel on the [[Main North Line, New Zealand|Main North Line]]. Daylighted in 1979.