The slip roads at Junction 10 will be closed overnight (10pm to 5:30am) from Monday 9 September to Thursday 12 September. The M25 and A3 will remain open, but motorists will be unable to leave or join the M25 or A3 at Junction 10.
Diversions will be in place. For full details see the National Highways website at nationalhighways.co.uk/our-roads/south-east/m25-junction-10/