Driving Through the M3 Junction 9 Upgrade – Southbound | April 2026 Progress Update

Join me for an in‑car drive‑through of the M3 Junction 9 Improvement Project filmed southbound on Sunday 26 April 2026, capturing the latest progress on one of the South East’s most significant road upgrades. This video documents the current layout, traffic management, construction activity, and how the works are reshaping this major interchange between the M3 and A34.

The M3 J9 scheme, delivered by National Highways, is designed to create free‑flowing links between the M3 and A34 in both directions, reducing congestion, improving journey times, and enhancing safety. The project
includes:

• Two new bridges on the gyratory
• Widening the M3 from 3 to 4 lanes through the junction
• Extended southbound slip road for safer merging
• Upgraded signs and gantries
• Improved walking, cycling, and horse‑riding routes connecting Kings Worthy, Winnall, Long Walk, and Easton Lane

Recent works have included overnight closures, resurfacing, traffic management switches, and bridge‑beam installations across the M3, A34, A33, and A272. These closures support major structural changes such as new roundabout bridge decks and gyratory construction.

This drive‑through gives you a real‑world look at how the layout feels from behind the wheel — ideal for drivers, locals, road‑project followers, and anyone tracking the transformation of this key Hampshire interchange.

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