The crash between a crash and a tractor on the Tauranga Eastern Link is now fully cleared.
The crash happened around 7am and emergency services arrived 30 minutes later.
The crash happened between the Kaituna River Bridge and the Parton Rd overpass on the sweeping bend.
A St John spokeswoman said one person was treated at the scene in a moderate condition.
A police spokeswoman said there was some diesel was on the road and a heavy haulage vehicle had been called to move the tractor which was partially blocking one of the lanes.