Every day thousands of motorists use either the Queen Elizabeth the 2nd bridge or the Dartford tunnel to get to and from Essex to Kent.
But from this weekend, there's going to be a big rise in toll charges. And there'll be another in two years time to help fund a £500m scheme to remove the tolls - increases that have been criticised by local haulage companies. Malcolm Robertson reports.
The leader of Cambridgeshire County Council, Nick Clarke, has welcomed government plans to improve the A14 and put in an additional toll road to ease congestion.