M3 junction 3 Lightwater Interchange, Surrey, bridge repairs

Latest updates

• 17 January 2025

  Essential bridge repairs start

  We are carrying out essential repairs to the east and west bridges at the M3 junction 3 Lightwater Interchange in Surrey. This will include installing new bridge joints, concrete works and diverting gas pipework so the repairs could go ahead.

  For safety, we will need overnight lane closures, 9pm to 6am, weeknights only, 8 January to 19 February and 24 February to 14 March.

  During these closures, the outer and inner ring of the interchange will be closed, with one lane running. 

  We will also need two, full weekend closures, closing one bridge, plus the slip road, at a time to try to limit disruption as much as possible and so that traffic can still flow in one direction.

  Full weekend closures

  • West bridge (A322 southbound), 9pm Friday 21 February to 6am Monday 24 February.
  • East bridge (A322 northbound), 9pm Friday 28 February to 6am Monday 3 March.

  Diversions

  Diversion for full weekend closures:

  East bridge (A322 southbound) closures: 

  • A322 northbound, left onto A30 (London Road)
  • left onto B3015 (The Maultway)
  • left onto B311 (Red Road), rejoining the A322 at Gordon Boys Roundabout.

  To join the M3 at Frimley interchange (junction 4) during East bridge closures: 

  • A322 Northbound
  • left onto A30 (London Road)
  • left onto A331 then joining at Frimley interchange (junction 4).

  For West bridge (A322 northbound) closures: 

  • A322 southbound, right onto B311 (Red Road)
  • right onto B3015 (The Maultway)
  • right onto A30 (London Road)
  • right onto Grove End, and then rejoining the A322.

  To join the M3 at Frimley interchange (junction 4) during West bridge closures:

  • A322 southbound,
  • right onto B311 (Red Road)
  • right onto B3015 (The Maultway)
  • left onto A30 (London Road)
  • left onto A331 then joining at Frimley interchange (junction 4).