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Revealed - new Dartford Crossing layout

The Highways Agency has revealed for the first time how the Dartford Crossing will be reconfigured when toll booths are removed.

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Dartford tunnels to be redesigned as part of 'complicated' scheme

The Highways Agency said that the full benefit of the changes will only be felt when the toll booths are removed.

Dart Charge Project Director Nigel Gray said: "We will get underway on this work at the same time that the new payment arrangements begin. It's complicated work - especially on the northbound carriageway, where we need to protect the tunnels - one of which was built in the 1960s and has a lower height restriction - from over-height vehicles.

"We’ll be completely redesigning the approach to the tunnels to detect and turn around these vehicles and other vehicles not suitable for the tunnels, using a system of signals, barriers and extra lanes, while keeping all other traffic flowing as much as possible.”

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