Drivers planning to use the M23 to reach Gatwick are being urged to allow extra time as a £2 million scheme to maintain a bridge starts today.

The work to replace key components on a bridge carrying the M23 starts today between junction 8 (M25) and junction 9 (Gatwick) will involve carriageway closures.

A contraflow system and speed restrictions will be in place to allow two lanes to remain open to traffic in both directions.

Carriageway closures will be in place – one at a time – overnight, between 10pm and 5am, with diversions in place via the A264, A22 and M25.

The work is due to be completed by the end of November, weather permitting.

Highways Agency asset manager Peter Phillips said: “We are maintaining the bridge to prolong the life of the structure, which will provide safe and reliable journeys for the thousands of drivers that rely on this route.

“We have planned the work to minimise disruption and will carry out the work on one carriageway at a time to reduce the time taken and keep two lanes open in both directions.

“I advise anyone wishing to use the M23 to plan their journeys in advance and to allow extra time.”