Temporary Closure Scheduled for M4 Junction with Speed Limit Reduced to 40mph

🚧 Heads up, travellers! 🚧
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If you’re driving near Neath Port Talbot, be prepared for some changes on the M4 over the coming weeks. The eastbound exit slip road at Junction 40, Tai-bach Interchange, will be closed intermittently for essential works. Expect a 40mph speed limit during this period to ensure safety.

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🗓️ Key details:
– Closure starts: 8pm, 23rd February 2026
Traffic Updates
– Expected end: 16th March 2026

Missed your exit at Junction 40? No worries! Here’s your alternative route:
1. Continue to exit at Junction 38.
2. Follow the signs to rejoin the motorway westbound at Junction 39.
3. Exit again at Junction 40 via the westbound off-slip road.

Remember, these changes might happen at various times, so keep an eye out for signs and updates. Even though it’s scheduled until mid-March, the order could last up to 18 months if necessary.

Stay safe and plan ahead! 🛣️ Share with friends who might be affected. 👍 #M4Traffic #Roadworks