At 4pm on Thursday a Hawke's Bay DHB spokeswoman said the woman was in a stable condition.
SH51 was blocked and diversions were in place before the southbound lane towards Clive reopened at midday and the road fully reopened about 1pm.
A lane of the Hawke's Bay Expressway, State Highway 2, between the Meeanee off-ramp and the SH50 and Pakowhai Rd intersection was also closed about noon when a truck crashed into the median barrier.
Traffic management was put in place by the council.
A police spokeswoman said at 1.30pm the truck had been removed but the southbound lane was still closed as a diesel spill from the crash was being cleaned.
A third crash, at 1.15pm on Maraekakaho Rd, between York Rd and Heathcote Rd, involved three cars.
A police spokeswoman said one person was trapped in the car and a lane of the road was blocked.
Traffic was managed by the council and the road was fully reopened about 2.05pm, a police spokeswoman said.
A St John ambulance spokesman said that one person, a male in his 60s, had been taken to Hawke's Bay Hospital at 2pm with moderate injuries.
At 4pm on Thursday the DHB spokeswoman said the man was in a stable condition.
