State Highway 1 (New Zealand)
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State Highway 1 (SH 1) is the longest and most significant road in the New Zealand road network, running the length of both main islands. It appears on road maps as SH 1 and on road signs as a white number 1 on a red shield, but it has the official designations SH 1N in the North Island, SH 1S in the South Island.
State Highway 1 | ||||
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Route information | ||||
Maintained by NZ Transport Agency | ||||
Length | 2,033 km (1,263 mi) | |||
Tourist routes | Twin Coast Discovery Highway Thermal Explorer Highway Classic New Zealand Wine Trail Alpine Pacific Triangle Southern Scenic Route | |||
North Island (SH 1N) | ||||
Length | 1,081 km (672 mi) | |||
North end | Cape Reinga / Te Rerenga Wairua | |||
Major intersections | SH 2 south near Pōkeno SH 5 north at Wairakei SH 5 south (Napier-Taupō Highway) at Taupō SH 3 north (Bridge Street) at Bulls SH 3 south (Dundas Street) at Sanson SH 2 north (Hutt Road) at Ngauranga Interchange | |||
South end | Wellington International Airport | |||
South Island (SH 1S) | ||||
Length | 952 km (592 mi) | |||
North end | Picton railway station | |||
Major intersections | SH 6 south (Nelson Street) at Blenheim SH 7 (Waipara Flat Road) at Waipara SH 8 south (Racecourse Road) at Washdyke SH 8 north (Manuka Gorge Highway) at Clarksville SH 6 north (Dee Street) at Invercargill | |||
South end | Bluff (Stirling Point) | |||
Location | ||||
Country | New Zealand | |||
Primary destinations | Whangārei, North Shore, Auckland, Manukau, Hamilton, Taupō, Porirua, Wellington, Picton, Blenheim, Christchurch, Ashburton, Timaru, Oamaru, Dunedin, Gore, Invercargill | |||
Highway system | ||||
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SH 1 is 2,006 kilometres (1,246 mi) long, 1,074 km (667 mi) in the North Island[1] and 932 km (579 mi) in the South Island.[2] Since 2010 new roads have reduced the length from 2,033 km (1,263 mi).[3] For the majority of its length it is a two-lane single carriageway, with at-grade intersections and property accesses, in both rural and urban areas. These sections have some passing lanes. Around 315 km (196 mi) of SH 1 is of motorway or expressway standard as of August 2022[update]: 281 km (175 mi) in the North Island and 34 km (21 mi) in the South Island.[needs update]