M3 Roadworks
Stay up to date with all current and planned roadworks on the M3 motorway. This page updates automatically from National Highways, showing live lane closures, overnight works, carriageway maintenance and scheduled improvements between Junction 1 (Sunbury-on-Thames) and Junction 14 (Southampton).
Whether you're planning a journey or checking your daily commute, you'll find the latest roadworks affecting the M3, including which lanes are closed, the reason for the works, and the dates and times they're scheduled to take place.
For more detailed searching, including filtering by junction, status and delays, visit our Search Latest M3 Traffic News page.
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Conditions can change, and not every hold-up is reported instantly, so do check back before you travel. Our traffic news updates automatically, 24 hours a day, every few minutes.