State Highway 18 (New Zealand)
State Highway 18 | ||||
---|---|---|---|---|
Route information | ||||
Maintained by NZ Transport Agency | ||||
Length | 14 km (8.7 mi) | |||
Major junctions | ||||
North-east end | SH 1 (Auckland Northern Motorway) at North Shore | |||
South-west end | SH 16 south (Northwestern Motorway) at West Harbour | |||
Location | ||||
Country | New Zealand | |||
Primary destinations | Greenhithe, Hobsonville | |||
Highway system | ||||
|
State Highway 18 (SH 18) is a state highway that runs between the Auckland Northern Motorway (SH 1) on the North Shore and the Northwestern Motorway (SH 16) in West Auckland, New Zealand. The Upper Harbour Motorway forms most of its length as of 2016 (the exception being a two-kilometre stretch at the north-eastern end). SH 18 forms the northern part of the Western Ring Route, which continues from Waitakere south-east to Manukau.
Route
SH 18 begins at the
Interchanges
Territorial authority | Location | km | mi | Exit | Destinations | Notes |
---|---|---|---|---|---|---|
Auckland – Upper Harbour Local Board | Unsworth Heights | 0.0 | 0.0 | SH 1 south (Northern Motorway) – Auckland | SH 18 begins | |
SH 1 north (Northern Motorway) – Whangarei | ||||||
0.5 | 0.31 | 1 | Caribbean Drive Paul Matthews Road | Eastbound exit and westbound entrance | ||
2.4 | 1.5 | 2 | Albany Highway (Urban Route 26) | Upper Harbour Motorway begins | ||
Greenhithe | 4.3 | 2.7 | 4 | Greenhithe Road | Westbound exit and eastbound entrance | |
6.2 | 3.9 | 6 | Tauhinu Road | Eastbound exit and Westbound entrance | ||
7.4 | 4.6 | Upper Harbour Bridge (Waitematā Harbour) | ||||
Hobsonville | 8.8 | 5.5 | 8 | Squadron Drive | Westbound exit and eastbound entrance | |
10.7 | 6.6 | 9 | Brigham Creek Road – Whenuapai, Wellsford | to SH 16 north | ||
12.7 | 7.9 | 10 | Trig Road | Westbound exit and eastbound entrance | ||
Westgate | 13.9 | 8.6 | 11 | Hobsonville Road (Urban Route 32) | Westbound exit and eastbound entrance | |
14.0 | 8.7 | SH 16 south (Northwestern Motorway) – Waitakere, Auckland | SH 18 ends Upper Harbour Motorway ends | |||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
Former route
SH 18 formerly ran along the Coatesville Riverhead Highway, further north than its current position. This route is now designated as Auckland Urban Route 28.
Cycleway
The route of the new motorway from Upper Harbour Bridge to Westgate was originally to receive a cycleway as well, but although the land was set aside, there is no timetable for the construction of the route.[1]
See also
References
- ^ a b "Pedestrians to hit new motorway". Auckland Now. 3 August 2011. Retrieved 27 September 2011.