Southbound traffic is currently being turned around.
Other potential diversion routes including Woodcocks Road are also affected by flooding.
Motorists are advised to delay their travel and avoid the area if possible.
The flooded area
For the latest highway information visit the Transport Agency’s website or sign up to www.onthemove.govt.nz for up-to-date information on what is happening on the route you plan to travel; freephone 0800 4 HIGHWAYS for national and regional travel updates.