The detour via Bethlehem Rd, Carmichael and Te Paeroa Rd will be in place until 5.30am tomorrow.
Southbound traffic will remain on the highway. The detour is suitable for all traffic, including HPMV.
For personalised information about driving conditions on their frequently used routes, motorists can check out and 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 (0800 44 44 49) or follow @nztawaibop on twitter.