do you have to pay for the dartford bridge
The crossing had always been tolled, and from 1 April 2003 this became a charge, though since 2008 it has been free from 10 pm to 6 am. An automatic number plate recognition charging scheme (Dart Charge) began in November 2014. As a result, the charge can no longer be paid in cash and the old toll booths have been removed. A residents' scheme is available, offering further discounts for people living near the crossing.
Dartford Crossing