UPDATE: The crash ins now cleared and all lanes are open. Congestion remains back past the Newlands off-ramp and will take a while to clear.
Motorists heading north out of Wellington are advised that a crash around 3:00pm today has blocked the left northbound lane of SH1 after the Johnsonville off-ramp.
NZTA advises that the right hand lane is open, but ask motorists to pass with care.
Queues are currently stretching back beyond the Newlands off-ramp.