Northwestern Motorway
| Northwestern Motorway | |
|---|---|
The motorway west of Waterview | |
| Route information | |
| Maintained by NZ Transport Agency | |
| Length | 21 km (13 mi) |
| Existed | 1952–present |
| Component highways | State Highway 16 |
| Major junctions | |
| East end | SH 16 (Stanley Street) – Auckland CBD |
| SH 1 (Northern Motorway/Southern Motorway) – Auckland CBD | |
| West end | Brigham Creek Road, Whenuapai |
| Location | |
| Country | New Zealand |
| Primary destinations | Central Auckland, West Auckland |
| Highway system | |
The Northwestern Motorway (also known historically as the Auckland–Kumeu Motorway), part of State Highway 16 (SH 16), is the major western route and secondary northern route out of Auckland in New Zealand. Twenty-one kilometres in length, the motorway runs from Stanley St in Parnell through the Central Motorway Junction, and west through Central Auckland and West Auckland before continuing northwest and terminating outside of Kumeū at the Brigham Creek Roundabout. A large part of it forms the middle section of the Western Ring Route.