Fire crews from Spalding, Donington and Billingborough cut the roof off a crashed Ford Ka last night (Tuesday) to free the driver.
The car ran into a ditch in Millthorpe Road, Pointon, shortly before 9.30pm.
Police say the driver was a 20-year-old woman from Billingborough.
She was taken by ambulance to hospital.
Police said there was no report of any serious injury.