State Highway 2 (New Zealand) Explained

Country:NZL
Type:SH
Route:2
Map:NZ-SH2 map.png
Tourist:Pacific Coast Highway
Classic New Zealand Wine Trail
Length Km:968
Direction A:North
Direction B:South
Terminus A: near Pōkeno
Terminus B: at Ngauranga Interchange
Destinations:Paeroa, Waihi, Tauranga, Whakatāne, Ōpōtiki, Gisborne, Wairoa, Napier, Hastings, Waipukurau, Dannevirke, Masterton, Carterton, Featherston, Upper Hutt, Lower Hutt
Previous Type:SH
Previous Route:1
Next Type:SH
Next Route:3

State Highway 2 (SH 2) runs north–south through eastern parts of the North Island of New Zealand from the outskirts of Auckland to Wellington. It runs through Tauranga, Gisborne, Napier, Hastings and Masterton. It is the second-longest highway in the North Island, after State Highway 1, which runs the length of both of the country's main islands.

For most of its length it consists of a two-lane single carriageway, with frequent passing lanes. There are sections of four-lane dual-carriageway expressway at Maramarua, Tauranga and Wellington.

Route

SH 2 leaves just north of Pōkeno, 49km (30miles) south of central Auckland. It heads east, crossing the Hauraki Plains before running the length of the Karangahake Gorge, a break in the hills between the Coromandel Peninsula and Kaimai Ranges. From the mining town of Waihi it runs southeast, skirting the edge of Tauranga Harbour, which it crosses on the Tauranga Harbour Bridge before connecting to the 23km (14miles) Tauranga Eastern Link, a four lane toll motorway. After reaching Paengaroa Junction with, SH 2 reverts to highway status and follows the coast for a further 34km (21miles), until it reaches the village of Matatā.

From Matatā it heads slightly inland, crossing the Rangitaiki plain to the south of Whakatāne, loops south to Tāneatua, through the Waimana gorge and then back north to the coast near Ōpōtiki. After Ōpōtiki it turns inland, ascending southeast along the valley of the Waioeka River, then winding up to the 725-1NaN-1 Traffords Hill summit. From here it descends into the watershed of the Waipaoa River following the river valley from Te Karaka to Makaraka, just outside Gisborne, to which it is connected by a short stretch of .

It then turns south, passing the Wharerata Forest and the isthmus of the Māhia Peninsula, turning west to follow the coast of Hawke Bay. Close to the mouth of the Waihua River it heads briefly inland, passing the Mohaka Forest and Lake Tūtira before rejoining the coast not far from the junction with at Bay View. It then joins the Hawke's Bay Expressway and bypasses the cities of Napier and Hastings where the expressway ends at Pakipaki, just south of Hastings.

It continues to head inland from Pakipaki, initially southwest to Waipukurau, then briefly west to follow tributaries of the Tukituki River upstream. Close to Norsewood enters the Tararua District and turns south-west, a direction it maintains for much of the remainder of its journey, crossing undulating country that forms the upper catchment of the Manawatu River. In Woodville, SH 2 meets at a TOTSO intersection. SH 2 continues south along the Mangatainoka and Makakahi rivers through Pahiatua and Eketāhuna, crossing into the Wairarapa valley via the Mount Bruce saddle.

SH 2 follows the Wairarapa valley through the towns of Masterton, Carterton and Greytown to Featherston. The highway then winds through the Remutaka Pass, between the Remutaka and Tararua Ranges, crossing into the Hutt Valley. SH 2 follows the Hutt River down the valley, passing the cities of Upper Hutt and Lower Hutt to the west, to reach the northern end of Wellington Harbour at Petone. From central Upper Hutt, SH 2 widens to a 2+1 road before widening further to four lanes divided at Silverstream, before finally becoming expressway standard with grade-separated junctions south of Melling. The highway follows the shoreline of Wellington Harbour to Ngauranga, where the Wellington Urban Motorway commences at the Ngauranga Interchange. Here, merges on to the Wellington Urban Motorway from the Ngauranga Gorge, and SH 2 ends at this point with the Wellington Urban Motorway carrying the SH 1 designation into Wellington.

Although the Ngauranga Interchange is the official end of SH 2, it is signed northbound on SH 1 as far back as the Mount Victoria Tunnel, 80NaN0 before it begins.

Spur sections

SH 2 used to have two spur sections:

History

The section of SH 2 through Mangatawhiri had a poor crash record, and the seven-kilometre Mangatawhiri Deviation was opened in December 2008 to improve safety by bypassing it. Passing lanes in both directions provide safe passing opportunities. Grade-separated intersections improve safety for traffic wanting to cross or join the highway.

SH 2 used to follow former SH 2A's route in Tauranga, along 15th Ave, into Turret Road, and across the harbour to Maungatapu, where it joined SH 29, and then headed across the Maungatapu Bridge to Te Maunga. This was changed in 2009 when a second harbour bridge opened next to the current one, providing four lanes of traffic and an overpass from the harbour bridges to the Takitimu Drive expressway. SH 2A became the old section until it was revoked in 2015.

Before 3 August 2015, SH 2 used to travel via Te Puke. The Tauranga Eastern Link, a tolled motorway almost 23 km from Te Maunga Junction to Paengaroa officially opened on 30 July 2015. SH 2 now follows the Tauranga Eastern Link. The new four lane highway was constructed as part of the National government's Roads of National Significance, improving access from the east (Te Puke, Whakatāne, Ōpōtiki, Gisborne) and south from Rotorua and Taupō. It is the main route for trucks heading to the Port of Tauranga from Rotorua and the eastern Bay of Plenty, and connects the economically-important central plateau forestry industry with the port for export. This NZTA administered road is tolled at $2.00 for cars and motorcycles and $5.00 for trucks.[3]

SH 2 used to extend into Whakatāne, but this section was moved inland to pass through Edgecumbe and Awakeri, with SH 30 extended to Whakatāne to cover the former route.

SH 2 used to run through the centres of Napier and Hastings before running to Pakipaki, following a coastal route between Napier and Hastings via the small town of Clive. In 2005, 9.8km (06.1miles) of SH 2 from the northern outskirts of Hastings, through central Hastings and up to the southern terminus of the Hawke's Bay Expressway (numbered SH 50A at the time) at Pakipaki was revoked.[4] Then, in 2019, SH 2 was shifted to the Hawke's Bay Expressway to reduce confusion and better reflect that the expressway is the spine of the Hawke’s Bay roading network, with the previous route between Napier and Hastings receiving a new designation of SH 51.[2]

In 1871 contracts were let to clear parts of the Seventy Mile Bush, totalling NaNmiles long, by 66feet wide, for the Takapau to Woodville section of the road,[5] which now forms 61km (38miles) of SH2.[6] It was designated as a Main Highway in 1924[7] and metalling of the section near Takapau was done in 1926.[8]

The Rimutaka Hill Road, traversing the Remutaka Ranges between Featherston and Upper Hutt, has a poor crash record, with many tight 25 and 35 km/h corners, and a lack of safety barriers to prevent vehicles dropping down off the road. The original winding route between Kaitoke and Te Marua was significantly realigned between 2002 and 2006. The tightest and narrowest corner on the road, named Muldoon's Corner after the former Prime Minister's financial stance ("tight and to the right"), is being bypassed with a new wider 55 km/h corner.[9]

River Road, between Maoribank and Silverstream in Upper Hutt, was opened in 1987 to bypass central Upper Hutt. The new route was a two-laned single-carriageway 100 km/h road on the Hutt River's banks, crossing the river at Moonshine, and replaced the 50 km/h route via Fergusson Drive. Most of the road of the road has been widened to three lanes, and median barriers have been installed, with only the Moonshine Bridge and north of Totara Park Drive still having two lanes undivided (Gibbons Street to Totara Park is three lanes undivided).

SH 2's southern terminus has also changed. It formed the southern part of the Wellington Urban Motorway when SH 1 finished at the Aotea Quay off-ramp. In 1996, SH 1 replaced this section.[10]

Flooding of the Waikari River during Cyclone Gabrielle destroyed the highway bridge over the river at Putorino.[11] In the same event, the road was also destroyed at Devil's Elbow near Tutira.[12]

Future developments

Currently there are several projects to improve SH 2. They include:

Traffic

The busiest section of SH 2 is north of the Ngauranga Interchange in Wellington. measured in 2019 to have an AADT 66,447 vehicles per day. The quietest section of road is at the Parihohonu Bridge, north of Otoko in the Gisborne District, measured in 2019 to have an AADT of 1,188 vehicles per day.[20]

See also

External links

Notes and References

  1. Web site: Revoking State Highway and Declaring Sections of State Highway—State Highways 2A and 29, Tauranga . NZ Gazette . 18 June 2015 . 10 December 2017.
  2. Web site: Hawke's Bay's state highways to be renumbered in August . NZ Transport Agency . 18 July 2019 . 18 July 2019.
  3. Web site: Where the toll roads are . NZTA.
  4. Web site: Revoking State Highway—State Highway No. 2, Hawke's Bay Region . NZ Gazette . 4 August 2005 . 22 February 2019.
  5. Web site: 11 Jan 1871. HAWKE'S BAY TIMES. 2021-10-08. paperspast.natlib.govt.nz.
  6. Web site: Woodville to Takapau. 2021-10-08. Google maps. en.
  7. Web site: 8 Feb 1924. MAIN HIGHWAYS. WAIPAWA MAIL. 2021-10-08. paperspast.natlib.govt.nz.
  8. Web site: 23 Jun 1926. MAIN HIGHWAYS. MANAWATU STANDARD. 2021-10-08. paperspast.natlib.govt.nz.
  9. Web site: Tight corner on Rimutaka Hill Road consigned to history . New Zealand . 27 June 2011 . 9 July 2011.
  10. Web site: Revoking Section of State Highway State Highway No. 2 and Declaring New Section of State Highway State Highway No. 1 . NZ Gazette . 12 March 2017.
  11. News: Cyclone Gabrielle: Frightening moment bridge bends, breaks away from road in seconds . . Heath . Moore . 15 February 2023 . 18 February 2023.
  12. News: Marriner . Chris . Cyclone Gabrielle: Truck driver rescued from Devil's Elbow on State Highway 2 . 18 February 2023 . . 16 February 2023.
  13. Web site: Pokeno to Mangatarata. NZTA . 2023-01-13.
  14. Web site: SH2 Waihī to Tauranga Corridor | Waka Kotahi NZ Transport Agency.
  15. Web site: SH2 BOP Northern Corridor Safe System project . NZTA . 10 February 2016.
  16. News: $520m bypass for busy Tauranga bottleneck . Bay of Plenty Times . 22 April 2016.
  17. News: Fulton Hogan and HEB win contract for Takitimu North Link . Bay of Plenty Times . 11 May 2021.
  18. Web site: SH2 Wainui Road to Ōpōtiki . NZTA . 3 March 2017.
  19. Web site: SH2 Melling to Haywards upgrade . NZTA . 26 April 2015.
  20. Web site: State highway traffic volumes 1975–2020 Waka Kotahi NZ Transport Agency. 2021-09-17. www.nzta.govt.nz.