Major improvement works and landscaping are being carried out at its junction with the M25.
Drivers using the M25 to pass the A3 will be unaffected.
Drivers who aren’t using the M25 are being diverted via Leatherhead.
The A3 will be closed northbound from the B2215/A247 exit at Ripley to the M25 junction 10.
The A3 will be closed southbound from the M25 junction 10 to the A247 at Burntcommon.