National Highways will close the A3 in both directions from the junction 10 interchange to the B2215/A247 at Send, from 9pm Saturday 1 March to 9am Sunday 2 March. This is to allow them to pour concrete at the Cockrow bridge.
For further information, and details about the diversions, see the National Highways website at nationalhighways.co.uk/our-roads/south-east/m25-junction-10/