A truck carrying a large amount of gravel has rolled on one of the main routes to Auckland Airport.
The crash happened in the southbound lanes on State Highway 20, the Southwestern Motorway, near the Portage Road overbridge about 4.20pm.
Gravel covered the road.
![The overturned truck. Photo / Chloe van Diepenbrugge](https://www.nzherald.co.nz/resizer/v2/X52JGGAG2D6GAEVYDCVJU7GL6A.jpg?auth=54839316c4ac9db724cd8a413fe40ffa37d96f90ac323e45203f3d95e77ff2f4&width=16&height=21&quality=70&smart=true)