Planned roadworks in and around the M25: weekly summary for Monday 27 February to Sunday 5 March 2017
Planned new and ongoing road improvements over the coming week.
The following summary of planned new and ongoing road improvements over the coming week is correct as of 24 February 2017 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.
M1 junction 6a (M25), Hertfordshire: resurfacing
Work to improve journeys by carrying out resurfacing continues this week. The dedicated link road from the M1 southbound to the M25 in both directions will be closed in both directions, between 10pm and 5.30am, from Monday 27 February for 4 nights. A clearly signed diversion will be in place via the M1 southbound to junction 6 and the A405 to M25 junction 21a.
M3 junction 2 (M25), Surrey: smart motorway improvement
Work to reduce congestion and improves journey times continues this week. The dedicated link road from the M3 northbound to the M25 in both directions will be closed for the entire weekend, from 9pm on Friday 3 March until 5.30am on Monday 6 March. A clearly signed pre-diversion will be in place for the M25 clockwise from M3 junction 4, via the A331, A31 and A3 to M25 junction 10. A clearly signed diversion will be in place for the M25 anti-clockwise via M3 junction 1 and return to M3 junction 2 and the M25 anti-clockwise. A clearly signed diversion for Heathrow Airport traffic will be in place via M3 junction 3, A322, A329M and the M4 to junction 4.
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 southbound carriageway between junctions 2 and 4a will be closed overnight, between 8pm and 5.30am, from Monday 27 February for 4 nights. 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 4a and 2 will be closed overnight, between 8pm and 5.30am, from Monday 27 February for 4 nights. A clearly signed diversion will be in place via the A327, A30, M25 junction 13 and M25 junction 12.
The northbound carriageway between junctions 3 and 2 will be closed overnight, between 8pm and 7am, on Friday 3 March. A clearly signed diversion will be in place via the A322, A30, M25 junction 13 and M25 junction 12.
M4 junctions 3 (A312) to 1 Chiswick, West London: electrical installation
Work to improve safety by carrying out electrical installation will start this week. The eastbound carriageway, including Heston Services and junction 2, will be closed overnight, between 10pm and 5.30am, from Monday 27 February for 5 nights. Work on Friday will start at 11pm. A clearly signed diversion will be in place via the A4.
M4 junction 5 Langley, Berkshire: drainage survey
Work to maintain safety by carrying out drainage surveys will start this week. The westbound exit slip road will be closed overnight, between 10pm and 5am, on Tuesday 28 February. A clearly signed diversion will be in place via junction 6 and return.
M25 junction 10 (A3), Surrey: resurfacing
Work to improve journeys by carrying out resurfacing will start this week. The anti-clockwise carriageway between the slip roads will be closed overnight, between 10pm and 5.30am, from Monday 27 February for 4 nights. A clearly signed diversion will be in place via the exit and entry slip road.
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 27 February for 4 nights. A clearly signed diversion will be in place via M25 junction 13, A30 and the A327 to M3 junction 4a.
M25 Heathrow Airport Terminal 5, Greater London: survey
Work to maintain safety by carrying out surveys will start this week. The dedicated link road from the M25 clockwise to Heathrow Airport Terminal 5 will be closed overnight, between 10pm and 5am, on Saturday 4 March. A clearly signed diversion will be in place via M25 junction 15, M4 westbound to junction 5 and return.
M25 junction 15 (M4), Greater London: drainage survey
Work to maintain safety by carrying out drainage surveys will start this week. The dedicated link roads from the M25 in both directions to the M4 westbound will be closed overnight, between 10pm and 5am, on Monday 27 February. A clearly signed diversion will be in place via the M4 eastbound to junction 4 and return.
The dedicated link roads from the M25 in both directions to the M4 eastbound will be closed overnight, between 10pm and 5am, on Thursday 2 March. A clearly signed diversion will be in place via the M4 westbound to junction 5 and return.
M25 junction 17 Rickmansworth, Hertfordshire: electrical repair
Work to maintain safety by carrying out electrical repairs will start this week. The anti-clockwise exit and entry slip roads will be closed overnight, between 11pm and 6am, on Friday 3 March. A clearly signed diversion will be in place for the exit slip road via M25 junction 16, M40 eastbound to junction 1 and return. A clearly signed diversion will be in place for the entry slip road via junction 18 and return.
M25 junction 18 Chorleywood, Hertfordshire: electrical repair
Work to maintain safety by carrying out electrical repairs will start this week. The anti-clockwise exit and entry slip road will be closed overnight, between 10pm and 5am, from Wednesday 1 March for 2 nights. A clearly signed diversion will be in place for the exit slip road via junction 17 and return. A clearly signed diversion will be in place for the entry slip road via junction 20 and return.
M25 junction 19 (A41), Hertfordshire: electrical repair
Work to maintain safety by carrying out electrical repairs continues this week. The anti-clockwise entry slip road will be closed overnight, between 10pm and 5am, on Tuesday 28 February. A clearly signed diversion will be in place via the A41 northbound to M25 junction 20.
M25 junctions 21 (M1) to 21a St Albans, Hertfordshire: electrical repair
Work to maintain safety by carrying out electrical repairs will start this week. The clockwise carriageway will be closed overnight, between 10pm and 5am, on Thursday 2 March. A clearly signed diversion will be in place via the M1 northbound to junction 8 and A405 eastbound to M25 junction 21a.
M25 junction 21(M1), Hertfordshire: electrical repair
Work to maintain safety by carrying out electrical repairs will start this week. The dedicated link road from the M25 clockwise to the M1 northbound will be closed overnight, between 10pm and 5am, on Tuesday 28 February. A clearly signed diversion will be in place via M25 junction 21a, A405 southbound to M1 junction 6.
M25 junctions 25 Enfield, Greater London: tunnel/sign maintenance
Work to maintain safety by carrying out sign maintenance will start this week. The anti-clockwise entry slip road will be closed overnight, between 10pm and 5am, on Monday 27 February. A clearly signed diversion will be in place via junction 26 and return.
Work to test and maintain the Holmesdale Tunnel safety system continues this week. The clockwise entry slip road will be closed overnight, between 10pm and 5am, on Saturday 4 March. A clearly signed diversion will be in place via junction 24 and return.
M25 junctions 31 Lakeside to 30 Thurrock, Essex: electrical maintenance
Work to maintain safety by carrying out electrical maintenance will start this week. The anti-clockwise carriageway between junctions 31 and 30 will be closed overnight, between 10pm and 5.30am, on Monday 27 February, and from Thursday 2 March for 2 nights. Work on Friday will start at 11pm. A clearly signed diversion will be in place via the dedicated link road between junctions 31 and 30.
M25 junctions 30 Lakeside to 31 Thurrock, Essex: electrical maintenance
Work to maintain safety by carrying out electrical maintenance will start this week. The clockwise carriageway between junctions 30 and 31 will be closed overnight, between 10pm and 5.30am, on Tuesday 28 February, and between 11pm and 5.30am on Friday 3 March. A clearly signed diversion will be in place via the dedicated link road between junctions 30 and 31.
M25 junction 30 Thurrock, Essex: electrical maintenance
Work to maintain safety by carrying out electrical maintenance will start this week. The anti-clockwise entry slip road will be closed overnight, between 10pm and 5.30am, on Wednesday 1 March. A clearly signed diversion will be in place via the A13 eastbound to the A128, A127 and M25 junction 29.
M25 junction 31 Lakeside, Essex: lighting replacement
Work to maintain safety by carrying out lighting replacement continues this week. The clockwise entry slip road will be closed overnight, between 10pm and 5.30am, on Saturday 4 March. A clearly signed diversion will be in place via junction 30 and return.
A1(M) junction 2 Welham Green, Hertfordshire: vegetation clearance
Work to maintain safety by carrying out vegetation clearance will start this week. The southbound entry slip road will be closed overnight, between 11pm and 6am, on Friday 3 March. A clearly signed diversion will be in place via the A1001 to A1(M) junction 4 and return.
A3 Ockham, Surrey: litter clearance
Work to improve journeys by carrying out litter clearance continues this week. The southbound exit slip road will be closed overnight, between 11pm and 6am, on Friday 3 March. A clearly signed diversion will be in place via the A3100, A3 and the B2215.
A3 (M25), Surrey: litter clearance
Work to improve journeys by carrying out litter clearance continues this week. The northbound exit and entry slip roads will be closed overnight, between 10pm and 5am, on Thursday 2 March. A clearly signed diversion will be in place for the exit slip road via the Painshill junction and return. A clearly signed diversion will be in place for the entry slip road via the Ockham junction and return.
A13 (A1012), Essex: resurfacing
Work to improve journeys by carrying out resurfacing will start this week. The eastbound entry slip road will be closed overnight, between 10pm and 5am, on Thursday 2 March. A clearly signed diversion will be in place via M25 junction 30 and return.
The westbound exit and entry slip roads will be closed overnight, between 11pm and 6am, on Friday 3 March. A clearly signed diversion will be in place for the exit slip road via M25 junction 30 and return. A clearly signed diversion will be in place for the entry slip road via the A128 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.
During the closure of the QEII Bridge, southbound traffic will be diverted via the east tunnel which will operate in reverse flow mode.
- Monday 27 February (9pm to 5.30am) northbound east tunnel
- Tuesday 28 February (9pm to 5.30am) northbound east tunnel
- Wednesday 1 March (9pm to 5.30am) northbound east tunnel
- Thursday 2 March (9pm to 5.30am) northbound east tunnel
- Friday 3 March (9pm to 5.30am) northbound east tunnel
- Saturday 4 March (9pm to 5.30am) northbound east tunnel
- Saturday 4 March (10pm to 5.30am) southbound QEII Bridge
- Sunday 5 March (9pm to 5.30am) northbound east tunnel
The QEII Bridge will have three (of four) lanes closed overnight, between 10pm and 5.30am, on Sunday 5 March.
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