M3 Northbound overnight closure 16 March 2026 between Junction 10 & Junction 9

Monday 16 March the M3 northbound will be closed between junctions 10 and 9  (9pm to 6am) for carriageway management

Diversion: M3 junction 10 to 9 northbound diversion

The diversion routes are designed to suit all vehicle types.

You are advised NOT to use a Satnav when following any of the diversions because there is a risk it could direct you down an unsuitable road or back onto our network when it is closed.

Please remember that closures can change at short notice. You can check the latest information on the daily closures page or find live travel information on our Traffic England. The travel alerts give details of live incidents on the network.

Updates are also posted on the Highways south east X and Facebook social media accounts which you can share.

In the event of poor weather conditions or other issues out of the contractors’ control, planned work may be postponed at short notice.

National Highways customer contact centre
0300 123 5000

http://www.nationalhighways.co.uk/