The front-seat van passenger was able to free herself but the driver had to be cut free by volunteer firefighters from Dargaville and Te Kopuru. Two rescue helicopters were used to transport the women to Whangarei Hospital.
One of the women was admitted to the Intensive Care Unit in a serious but stable condition while the other woman was in a stable condition on one of the wards.
A Northland DHB spokeswoman said both women had recovered remarkably well from their injuries and yesterday the first woman was moved from the ICU to an orthopaedic ward while the other woman was discharged. Police are still investigating the crash.