M3 Closure: Emergency Bridge Repairs - Full Diversion Route (2026)

In a surprising turn of events, the M3 has been completely shut down due to urgent bridge repairs, prompting a full diversion. This significant closure was announced by National Highways shortly after 10:30 AM on Monday, January 19, revealing that an infrastructure issue had arisen between Junctions 13 and 14. Initially, three lanes were closed for repair work; however, by 3 PM, the decision was made to close the entire carriageway.

To assist drivers navigating this unexpected situation, a diversion route has been established, which is indicated by solid triangle symbols on road signs. Here’s how to re-route effectively:
1. Exit the M3 at Junction 12, then take the second exit at the roundabout onto Allbrook Way.
2. At the next roundabout, continue straight through the second exit onto Twyford Road.
3. Proceed to the third roundabout and take the third exit onto Romsey Road/Leigh Road.
4. Finally, follow the signs to re-enter the M3 at Junction 13.

A spokesperson from National Highways has stated, "Specialist service providers are currently on-site to conduct the necessary repairs. If your travel plans are affected by this closure, we advise allowing additional time for your journey. It might be wise to consider alternative routes or postpone your travel if possible."

This situation underscores the importance of being prepared for sudden changes on the roads. Have you ever faced a similar inconvenience while traveling? Share your thoughts in the comments!

M3 Closure: Emergency Bridge Repairs - Full Diversion Route (2026)

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