A police-led incident has forced the westbound M3 motorway to close at Junction 12 in Eastleigh, Hampshire. This closure has caused severe congestion and disrupted journeys across the surrounding area. Motorists have been warned to expect lengthy delays as emergency services manage the ongoing situation.
The sudden closure has heavily impacted regional travel. According to traffic monitoring services and the AA, congestion has extended backward as far as Junction 9. Additional travel disruptions have also reached areas near Southampton Airport, leaving commuters and travelers stuck in long stationary queues.
Impact on Local Traffic and Commuters
Motorway camera footage captured long lines of vehicles brought to a complete standstill on the affected sections of the highway. Traffic reports indicate that average speeds on the congested stretch dropped to just five miles per hour at the height of the disruption, highlighting the severity of the incident.
National Highways and local law enforcement have implemented diversion routes utilizing the entry and exit slip roads at Junction 12 to help clear the backlog of vehicles. However, drivers traveling through Hampshire have been strongly advised to avoid the area completely or allow significantly extra time for their journeys.
Official Guidance and Ongoing Updates
Emergency services remain at the scene managing the incident, and the motorway will stay closed until safety checks and police procedures are fully concluded. Motorists are encouraged to check live traffic updates from National Highways before setting out on any westbound trips via the M3 corridor.
Key Travel Impacts:
- Location: M3 Westbound at Junction 12, Eastleigh, Hampshire
- Cause: Ongoing police-led incident
- Congestion Extent: Traffic backing up to Junction 9 and impacting Southampton Airport access
- Average Speeds: Dropped to approximately 5 mph in affected zones
- Recommended Action: Avoid the area and expect significant delays
