Highways England has apologised to drivers who were stuck in four-hour tailbacks after a computer failure closed the Dartford tunnel last night.
The sensors used to detect if a lorry is too tall to travel safely through the tunnels, stopped working. Around 300 lorries a month approach the crossing in the wrong lane. But the resulting chaos exasperated travellers.
Phil Hornby has been talking to the town's MP, Gareth Johnson.
M25 Dartford Tunnel anticlockwise closed, queueing traffic between J1A A206 / A226 (Erith / Swanscombe) and J31 A1306 (West Thurrock), congestion on M25 to J2 A2 (Darenth Interchange).
Traffic is queuing on the M25 after a collision involving three lorries.
Two lanes are closed on the Dartford Tunnel anticlockwise between junctions 1A and 31. As a result, there is congestion between junction 1A and junction 3.
Two lanes closed and queueing traffic on M25 anticlockwise at the Dartford Tunnel, congestion to J2 A2 (Darenth Interchange).
One lane blocked and heavy traffic due to broken down van on M25 anticlockwise at A282 Dartford Tunnel, congestion to J1b A296 Princes Road (Dartford).
Up to 8,000 drivers a day are failing to pay the Dartford Crossing tolls since the barriers were done away with a month ago.
A new electronic scheme is now in operation with 85% paying the £2.50 charge for cars. It is similar to Congestion Charging in London.
The first penalty notices have just been sent out but initially offenders will have two weeks to pay the charge before they are fined.
Meanwhile the Highways Agency say there have been big savings in journey times with many trips on average speeded up by nine minutes.
There is still work needed to remove barriers and it is expected to be complete in the Spring.
Our transport correspondent Mike Pearse speaks to Nigel Gray from the Highways Agency.
One million vehicles are now registered to Dart Charge accounts with journey times significantly quicker, according to the Highways Agency.
Dart Charge, which is designed to speed up journey times at one of the UK’s busiest transport gateways, now allows drivers to use the crossing without having to pay the charge at a barrier.
Early data suggests drivers are already experiencing significant improvements, with average journey times between 7am and 7pm cut by more than 9 minutes southbound, and more than 4 minutes northbound when comparing the first two weeks of December and the end of November.
Around two million crossings have been made during the 6am-10pm chargeable period, and early indications show that to date around 85% of crossings have been paid for.
Two lanes are closed and there is slow traffic due to broken down lorry on the M25 Dartford Tunnel anticlockwise at A282 (Dartford Tunnel tolls).
The West Tunnel is closed, but the slightly higher East Tunnel remains open.
Today marks the 50th anniversary of the opening of the first tunnel at the Dartford Crossing between Kent and Essex. What is now the west bore of the current tunnel opened at midday on 18 November, 1963.
Capacity at the crossing was later increased with the opening of the east bore in 1981 and the Queen Elizabeth II bridge in 1991. The Highways Agency says the crossing is a vital transport link, continuing to bring benefits to the economy, nationally as well as regionally.
Two lanes closed at on M25 anticlockwise at the A282 (Dartford Tunnel), and there is queueing traffic after an accident involving a car and a lorry. There is congestion to J1b A282 / A296 Princes Road (Dartford).
The West tunnel is closed because of an accident just before the tunnel entrance, all traffic is going through the East tunnel.