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M25 crash in Holmesdale Tunnel shuts two lanes near Enfield

Lorry and car collision causes delays during Thursday morning rush hour

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M25 crash in Holmesdale Tunnel shuts two lanes near Enfield
HNL visual fileM25

A lorry and a car collided inside Holmesdale Tunnel on the M25 this morning, closing two lanes and causing delays for drivers near Enfield. The incident occurred at approximately 7:30 a.m. on 12 September 2024, according to National Highways, as reported by *This Is Local London*.

The crash took place on the anticlockwise carriageway of the M25, between junctions 25 (A10) and 24 (A111). National Highways confirmed that two lanes were closed while emergency services attended the scene. No injuries were reported at the time of the update.

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Delays of up to 45 minutes

Traffic delays of up to 45 minutes were recorded following the collision. National Highways advised drivers to avoid the area if possible and to check real-time traffic updates before starting their journeys. The cause of the collision remains unclear.

Holmesdale Tunnel, located near Enfield, is a known congestion hotspot during peak travel times. The tunnel carries the M25 beneath a residential area, and incidents inside it often lead to significant delays due to limited diversion routes.

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What happens next

National Highways has not provided a timeline for reopening the closed lanes. Drivers are advised to monitor traffic updates via the National Highways website or local radio stations for further developments. The incident is being investigated by police, but no further details have been released.

45 minsMaximum recorded delayFor drivers travelling anticlockwise near junction 25, as reported by National Highways

Questions this report answers

+Which part of the M25 was closed after the crash?

Two lanes inside Holmesdale Tunnel on the anticlockwise carriageway, between junctions 25 and 24 near Enfield, were closed. National Highways confirmed the closure following the collision on 12 September 2024.

+How long were the delays after the M25 crash?

Delays of up to 45 minutes were reported for drivers travelling anticlockwise near junction 25. National Highways advised checking traffic updates before travelling due to the incident.

+Were there any injuries in the M25 tunnel crash?

No injuries were reported by National Highways at the time of the update. Emergency services attended the scene after the collision between a lorry and a car on 12 September 2024.

+What should drivers do if they need to use the M25 near Enfield?

Drivers are advised to avoid the area if possible or check real-time traffic updates before travelling. National Highways has not provided a timeline for reopening the closed lanes inside Holmesdale Tunnel.

On the recordHOW
WE FILE

No invented reporter. No hidden source trail.

The London Travel Desk assembled this report from the outlets listed below. Language-model drafting is reviewed under human editorial supervision, with scoring notes and corrections kept visible.

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Who else reported this

Our article above is written from the facts in these reports. Read the originals — every one is linked.

M25 lanes closed after Holmesdale Tunnel crash near Enfield | London Travel News