The fatal collision happened shortly after 1pm on the line near Ray Lane in Garstang, where she was sadly pronounced dead at the scene.
The woman has since been named as Kiena Dawes, a 23-year-old mum with a 9-month-old daughter. You can read our tribute to Kiena here.
Rail services between Preston and Lancaster were halted whilst police and paramedics responded.
A police spokesman said: “British Transport Police were called to the line in Preston at 1.05pm on Friday, July 22 following reports of a casualty on the tracks.
“Paramedics also attended, however sadly a woman was pronounced dead at the scene.
“This incident is not being treated as suspicious and a file will be prepared for the coroner.”