Press release

Planned roadworks in and around the M25: Weekly summary for Monday 23 March - Sunday 29 March

The following summary of planned new and ongoing road improvements over the coming week is correct as of 20 March 2015 but could be subject to change due to weather conditions or unforeseen circumstances. All our improvement work is carried out with the aim of causing as little disruption as possible.

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M1 junction 6a, Hertfordshire: Bridge joint replacement work

The southbound link road to the M25 clockwise and anti-clockwise carriageways will be closed overnight, between 9pm and 9am, on Saturday 28 March. A clearly signed diversion will be in place via M1 junction 5 and A41.

M3 junctions 2 to 3, Surrey: Major improvement scheme

The westbound carriageway will be closed overnight, between 9pm and 5.30am, for eight nights from Wednesday 25 March. A clearly signed diversion will be in place via the M25 clockwise to junction 13, A30 and A322.

M4 junction 4, Greater London: Horticulture work

The westbound entry slip road will be closed overnight, between 10pm and 5am, on Monday 23 March. A clearly signed diversion will be in place via the M4 junction 3.

M25 junction 12, Surrey: Major improvement scheme

The clockwise and anti-clockwise link roads to the M3 westbound will be closed overnight, between 9pm and 5.30am, for eight nights from Wednesday 25 March. A clearly signed diversion will be in place via junction 13, A30 and A322 to junction 3 on the M3.

M25 junction 13, Surrey: Bridge joint replacement work

The anti-clockwise exit slip road will be closed overnight, between 10pm and 5am, on Monday 23 March. A clearly signed diversion will be in place via junction 11.

M25 junction 17, Buckinghamshire: Carriageway resurfacing

The anti-clockwise entry slip road will be closed overnight, between 10pm and 5.30am, for five nights from Monday 23 March. A clearly signed diversion will be in place via junction 18.

The anti-clockwise exit slip road will be closed overnight, between 10pm and 5.30am, for four nights from Tuesday 24 March. A clearly signed diversion will be in place via junction 16, and the M40 eastbound to junction 1.

M25 junction 21, Hertfordshire: Electrical work

The anti-clockwise link road to the M1 northbound will be closed overnight, between 10pm and 5am, for three nights from Monday 23 March. A clearly signed diversion will via junction 20.

M25 junctions 21a to 20, Hertfordshire: Bridge joint replacement work

The anti-clockwise carriageway including the dedicated link road to the M1 northbound and junction 21a anti-clockwise entry slip road will be closed overnight, between 9pm and 9am, on Saturday 28 March. A clearly signed diversion for traffic wishing to use the M1 northbound will be in place via junction 21a, the A405 and A414. A clearly signed diversion for the anti-clockwise carriageway and junction 21a entry slip road will be in place via the A405 and A41.

M25 junction 29, Essex: Carriageway resurfacing

The clockwise exit slip road will be closed overnight, between 10pm and 5.30am, for nine nights from Monday 23 March. A clearly signed diversion will be available via junction 30.

M25 junction 31, Essex: Dart Charge construction work

The clockwise entry slip road will be closed overnight, between 10pm and 5.30am, for three nights from Monday 23 March. A clearly signed diversion will be in place via junction 30.

A13/M25 junction 30 Thurrock, Essex: Major improvement

Narrow lanes and a 40mph speed limit are in place with a free recovery service operating 24 hours a day. There will be additional overnight lane and slip road closures as required. All closures will have a clearly signed diversion in place.

A126 Lakeside, Thurrock, Essex: Major improvement

The westbound entry slip road from the A126 Dumbell roundabout will be closed overnight, between 10pm and 5.30am, for two nights from Thursday 26 March. Work on Friday will start at 11pm. A clearly signed diversion will be in place via the B186 to the M25 junction 31 roundabout.

A13 Lakeside, Thurrock, Essex: Major improvement

The westbound exit slip road to the M25 junction 30 roundabout will be closed overnight, between 10pm and 5.30am, for two nights from Thursday 26 March. Work on Friday will start at 11pm. A clearly signed diversion will be in place via the Wennington exit.

A13 Tilbury, Essex: Horticulture work

The westbound link road to the A1089 southbound will be closed overnight, between 10pm and 5am, for two nights from Monday 23 March. A clearly signed diversion will be in place to Grays (A1012) junction and return.

A30, Surrey: Bridge joint replacement

The northbound link road to the M25 junction 13 will be closed overnight. between 10pm and 5:30am. for two nights from Tuesday 24 March. A clearly signed diversion will be in place via the A308, A30 to M25 junction 13.

A282 junction 1a, Kent: Dart Charge construction work

The northbound entry slip road will be closed overnight, between 8:30pm and 5.30am, for six nights from Tuesday 24 March. A clearly signed diversion will be in place via junction 2, except on Saturday 28 March and Sunday 29 March when the diversion will be via junction 1b.

A282 junction 1b, Kent: Dart Charge construction work

The northbound entry slip road will be closed overnight, between 10pm and 5:30am, for five nights from Monday 23 March. A clearly signed diversion will be in place via junction 2.

A282 (M25) Dartford – Thurrock Crossing: Maintenance work

The following closures will be in place, with a fully signed diversion for oversized vehicles for the northbound east tunnel closures.

  • Monday 23 March (8.30pm to 5:30am): northbound East Tunnel closure
  • Tuesday 24 March (8.30pm to 5:30am): northbound West Tunnel closure
  • Wednesday 25 March (8.30pm to 5:30am): northbound West Tunnel closure
  • Thursday 26 March (8.30pm to 5:30am): northbound West Tunnel closure
  • Friday 27 March (8.30pm to 5:30am): northbound West Tunnel closure
  • Saturday 28 March (8.30pm to 5.30am): northbound West Tunnel closure
  • Sunday 29 March (8.30pm to 5:30am): northbound West Tunnel closure

The QEII Bridge will have three (of four) lanes closed overnight, between 10pm and 5.30am, on Tuesday 24 March. A1089 Tilbury, Essex: Horticultural work

The northbound link road to the A13 westbound will be closed overnight, between 10pm and 5am, for two nights from Wednesday 25 March. A clearly signed diversion will be in place via the A13 eastbound to the Brentwood (A128) junction and return.

Safety at roadworks

The Highways Agency is working with the industry and road users to reduce the risks of working on the roads. For the safety of road workers and all road users, when you are approaching roadworks:

  • keep within the speed limit – it is there for your safety
  • get into the correct lane in good time – don’t keep switching
  • concentrate on the road ahead, not the roadworks
  • be alert for works’ traffic leaving or entering roadworks
  • keep a safe distance – there could be queues in front
  • observe all signs – they are there to help you

General enquiries

Members of the public should contact the Highways Agency Information Line on 0300 123 5000.

Media enquiries

Journalists should contact the Highways Agency press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer.

Published 20 March 2015