This weekend, starting on the 17th January 2025 at 9pm, sees the installation of the new Cockrow Bridge on the A3 – the star bridge of the scheme and what will be the UK’s first heathland bridge.
The restoration of rare heathland is one of the M25 Junction 10 project’s biggest elements – alongside improving traffic flow and safety.
The new Cockrow Bridge, a heathland green bridge, will reconnect the commons either side of the A3, and provide a natural and safe corridor for wildlife.
The heathland on the bridge will develop with time and what’s being installed this month is the bridge structure – but a significant milestone nonetheless.
To do the bridge installation they are closing the A3 for the full weekend, from 9pm on Friday 17 January until 6am on Monday 20 January. While the A3 is closed the M25 will remain open.
The closed stretch is just south of the M25 and will be between the junction 10 interchange and Send B2215/A247.
The diversion route to go southbound during the closure will be via Cobham, Chessington, Great Bookham and Effingham, rejoining the A3 at Send.
Meanwhile to travel northbound the diversion route will be via East Clandon, Effingham, Fetcham and then onto the M25 towards Wisley.
Diversions
Southbound A3 main diversion:
- via eastbound (anticlockwise) M25 to junction 9
- A243, A246, A247
- to rejoin the southbound A3.
Southbound A3 non-motorway diversion:
- via northbound A3, A245, A307, A309, A243, A246, A247
- to rejoin the southbound A3.
Northbound A3 main diversion:
- via B2215, A247, A246, A24, A243
- join westbound (clockwise) M25 at junction 9
- rejoin northbound A3 at junction 10.
Northbound A3 non-motorway diversion:
- via B2215, A247, A246, A24, A243, A307, A245
- to rejoin the northbound A3 at the Painshill junction.
Wisley Lane diversion (both directions):
- via Portsmouth Road (B2215)
- Newark Lane (B367), Warren Lane, Pyford Road, Lock Lane
- to rejoin Wisley Lane.
Guileshill Lane diversion:
- Ripley Lane
- Pincott Lane
- The Street
- Ockham Road North (B2039)
Closed Stretch Of Guileshill Lane
Please take care and follow the diversions instead of a SatNav.
Closed section of the A3
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