Four-vehicle smash blocks motorway at Watford

Four-vehicle crash blocks M25 near Watford

A collision involving four vehicles has blocked the anti-clockwise M25 motorway near [translate:Уотфорд], leading to delays of up to an hour.

Traffic disruption and closure details

The motorway is currently closed within Junction 20, at the [translate:A41] interchange. Traffic is being diverted around the scene using exit and entry slip roads at Junction 20.

National Highways reported delays of approximately 50 minutes as of 8:30 pm, with congestion stretching up to three miles near the site and extending back to the [translate:M1].

Emergency services response

[translate:Полиция Хертс] and the East of England Ambulance Service are on site managing the situation.

“We are currently dealing with a high volume of traffic on the M25 anticlockwise at Junction 20 (Watford/Kings Langley) following a road traffic collision. We would ask you to please avoid the area at this time.”

Official updates

Author's summary: The four-vehicle crash on the M25 near Watford has caused significant delays, with emergency services on scene urging motorists to avoid the area.

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Watford Observer Watford Observer — 2025-11-09