Contractors are making their way to the site and the highway is expected to be open within two hours.
For personalised information about driving conditions on their frequently used routes, motorists can sign up to On The Move at www.onthemove.govt.nz.
For real time information on highway conditions and incidents or to report issues on the network visit www.nzta.govt.nz call 0800 4 HIGHWAYS or follow @nztawaibop on twitter.