Update 4.35 pm:
The crash scene has been cleared and the northbound lanes of State Highway 1 have been reopened. However, the crash has caused significant congestion for northbound drivers. Travel delays can be expected until queued traffic clears.
Update 4:25pm:
Commuters heading out of the Wellington CBD can expect delays this evening following a crash on State Highway 1 near Johnsonville.
The crash was reported around 4 pm.
State Highway 1 is now closed to northbound traffic between the Johnsonville off-ramp and the Johnsonville on-ramp. There are significant traffic queues northbound through Ngauranga Gorge.
Drivers should detour via Johnsonville Road and expect northbound delays.
The highway remains open to southbound traffic.
