LISTED: Roadworks in the south this week

M3 junctions 2 (M25) to 4a Farnborough, Hampshire: smart motorway improvement

Work to reduce congestion and improve journey times continues this week with narrow lanes a 50mph speed limit in place on both carriageways between junctions 2 and 4a, with a free recovery service operating 24 hours a day.

The northbound carriageway between junctions 4a and 2 will be closed overnight, between 8pm and 5.30am, from Monday 13 February for 5 nights. Work on Saturday morning will finish at 7am. A clearly signed diversion will be in place via the A327, A30, M25 junction 13 to M25 junction 12.

The southbound carriageway between junctions 2 and 4a will be closed overnight, between 8pm and 5.30am, from Monday 13 February for 5 nights. Work on Saturday morning will finish at 7am. A clearly signed diversion will be in place via M25 junction 13, A30 and the A327 to M3 junction 4a.

The northbound carriageway between junctions 3 and 2 will be closed overnight, between 8pm and 7am, on Saturday 18 February. A clearly signed diversion will be in place via the A322 and A30, M25 junction 13 and M25 junction 12.

M4 junction 4b, Greater London: drainage survey

Work to maintain safety by carrying out drainage surveys will start this week. The dedicated link road from the M4 eastbound to the M25 clockwise will be closed overnight, between 10pm and 5am, on Wednesday 15 February. A clearly signed diversion will be in place via junction 4 and return.

M25 junction 6 Godstone, Surrey: sign installation

Work to improve safety by installing new signs will start this week. The anti-clockwise entry slip road will be closed overnight, between 10pm and 5.30am, from Wednesday 15 February for 5 consecutive nights. Work on Friday will start at 11pm. A clearly signed diversion will be in place via junction 8 and return.

M25 junction 9 Leatherhead, Surrey: carriageway repair

Work to maintain safety by carrying out carriageway repairs will start this week. The clockwise entry slip road will be closed overnight, between 10.30pm and 5.30am, from Monday 13 February for 2 nights. A clearly signed diversion will be in place via junction 8 and return.

M25 junction 12 (M3), Surrey: smart motorway improvement

Work to improve journeys by carrying out smart motorway improvement continues this week. The dedicated link roads from the M25 in both directions to the M3 southbound will be closed overnight, between 8pm and 5.30am, from Monday 13 February for 5 nights. Work on Saturday morning will finish at 7am. A clearly signed diversion will be in place via M25 junction 13, A30 and the A327 to M3 junction 4a.

M25 junctions 10 (A3) to 11 Chertsey, Surrey: bridge joint replacement

Work to improve journeys by carrying out bridge joint replacement on the structure that carries the M25 over the River Wey and the South West Trains railway line continues this week. The clockwise carriageway will be closed overnight, between 9pm and 8am, on Saturday 18 February. A clearly signed diversion will be in place via the A3, A245, A320 and the A317.

M25 junction 22 London Colney, Hertfordshire: electrical repair

Work to maintain safety by carrying out electrical repairs continues this week. The clockwise exit slip road will be closed overnight, between 10pm and 5am, from Monday 13 February for 3 nights. A clearly signed diversion will be in place via junction 23 and return.

M25 junctions 25 Enfield to 26 Waltham Abbey, Essex: tunnel maintenance

Work to test and maintain the Holmesdale Tunnel safety systems will start this week. The clockwise carriageway will be closed overnight, between 10pm and 5.30am, from Monday 13 February for 3 nights. A clearly signed diversion will be in place via the A10 and the A121.

M25 junction 28 Brentwood, Essex: resurfacing

Work to improve journeys by carrying out resurfacing will start this week. The anti-clockwise exit slip road will be closed overnight, between 10pm and 6am, from Monday 13 February for 5 nights. Work on Friday will start at 11pm. A clearly signed diversion will be in place via junction 26 and return.

M25 junction 30 Thurrock, Essex: technology testing

Work to maintain safety by carrying out technology testing will start this week. The anti-clockwise entry slip road will be closed overnight, between 10pm and 5.30am, on Wednesday 15 February. A clearly signed diversion will be in place via the A13, A128, A127 and M25 junction 29.

M25 junctions 30 Thurrock to 31 Lakeside, Essex: technology testing

Work to maintain safety by carrying out technology testing will start this week. The clockwise carriageway will be closed overnight, between 10pm and 5.30am, from Tuesday 14 February for 3 nights. A clearly signed diversion will be in place via the exit slip road at junction 30 and the dedicated link road to junction 31.

M25 junctions 31 Lakeside to 30 Thurrock, Essex: technology testing

Work to maintain safety by carrying out technology testing will start this week. The northbound carriageway between junctions 31 and 30 will be closed overnight, between 10pm and 5.30am, on Thursday 16 February. A clearly signed diversion will be in place via the junction 31 exit slip road and the dedicated link road to junction 30.

A13 (A1306) to (A1012), Essex: technology testing

Work to maintain safety by carrying out technology testing will start this week. The A13 in both directions between Wennington and North Stifford will be closed overnight, between 10pm and 5.30am, on Monday 13 February and between 11pm and 5.30am on Friday 17 February. A clearly signed diversion will be in place via the A1306, M25 junction 31 and the A1012.

A13 (M25), Essex: technology testing

Work to maintain safety by carrying out technology testing will start this week. The eastbound entry slip road will be closed overnight, between 10pm and 5.30am, on Tuesday 14 February. A clearly signed diversion will be in place via the dedicated link road between junctions 30 and 31, and the A1012 to the A13.

A13 (A1306) to M25 junction 30, Essex: technology testing

Work to maintain safety by carrying out technology testing will start this week. The eastbound carriageway will be closed overnight, between 10pm and 5.30am, on Wednesday 15 January. A clearly signed diversion will be in place via the A1306, M25 junction 31 and the dedicated link road to M25 junction 30.

A13 (A1012), Essex: electrical repair

Work to maintain safety by carrying out electrical repairs will start this week. The eastbound entry slip road will be closed overnight, between 11pm and 5am, on Friday 17 February. A clearly signed diversion will be in place via the M25 junction 30 roundabout and return.

A282 (M25) Dartford – Thurrock Crossing: maintenance

Work to improve journeys at the Dartford Crossing continues this week. The following closures will be in place with fully signed diversions in place during the northbound east tunnel closures for oversized vehicles.

Monday 13 February (9pm to 5.30am) northbound west tunnel

Tuesday 14 February (9pm to 5.30am) northbound west tunnel

Wednesday 15 February (9pm to 5.30am) northbound west tunnel

Thursday 16 February (9pm to 5.30am) northbound west tunnel

Friday 17 February (9pm to 5.30am) northbound east tunnel

Saturday 18 February (9pm to 5.30am) northbound west tunnel

Sunday 19 February (9pm to 5.30am) northbound west tunnel

A282 junction 1a Swanscombe, Kent: tunnel maintenance

Work to maintain safety by carrying out tunnel maintenance continues this week. The northbound entry slip road will be closed overnight, between 9pm and 5.30am from Monday 13 February for 4 nights and from Saturday 18 February for 2 nights. A clearly signed diversion will be in place via the A282 southbound to junction 1b and return.