Auckland’s Northern Motorway closed between Northcote and Onewa Roads from 10.30 am


The NZ Transport Agency has closed Auckland’s Northern Motorway, State Highway 1, due to flooding, southbound between Northcote Off-ramp and Onewa On-ramp. A detour is in place via local roads. Motorists are advised to expect significant delays while the high tide passes.

Please avoid the area and postpone any non-urgent travel. Consider using the Western Ring Route (SH18/SH16). SH1 was down to one lane earlier today due to flooding of the southbound lanes.

Social media and web pages are the best places for updates on highway flooding across the country today: link)

Wider driving advice

There is surface flooding in many places across the country today, in towns and on rural roads and highways. The Transport Agency asks everyone to slow down, watch for flooding signage or water on the roads, remember to leave longer following distances between cars and drive with care and patience. Posted speed limits may be too high in rain and flooding conditions with poor visibility so people need to err on side of caution.

How to stay up to date:

  • The key traffic and travel source which provides up-to-date information on weather and road conditions nationwide is
  • Important information is also shared via the Transport Agency’s official Twitter and Facebook accounts listed here.
  • Drivers can also call 0800 4 HIGHWAYS (0800 44 44 49) to speak to the call centre team who can provide them with traffic and travel information either before they’re travelling or when they’re on the road.
  • MetService severe weather warnings here.(external link)
  • MetService three day rainfall map here.(external link)