An 82-year-old woman has died following a collision with a semi-trailer on the Bruxner Highway.

Emergency services were called to the Pineapple Road/Oliver Avenue roundabout on the eastern approach to Goonellabah just after 6pm yesterday.

Richmond Police District officers arrived to find a Toyota sedan and a semi-trailer had collided.

Witnesses said the crash occurred as the woman entered the roundabout from Oliver Avenue. It was raining at the time.

NSW Ambulance paramedics and police treated the woman, but she died at the scene.

The driver of the semi-trailer, a 58-year-old man, was uninjured and taken to Lismore Hospital for mandatory testing.

Traffic was diverted for several hours while officers established a crime scene and began inquiries into the circumstances of the crash.

Police say accident investigation officers will prepare a report for the Coroner.