Location: clockwise between junctions J21A (Watword) and J22 (St Albans) .
Due to: Police incident.
Status : Cleared.
Nearest town: 11.75 miles from Codmore.
Location: anticlockwise between junctions J25 (Enfield) and J24 (Potters Bar) .
Lane Closures : Lane one is closed.
Due to: Broken down vehicle.
Time To Clear : The event is expected to clear between 21:00 and 21:15 on 13 March 2026.
Normal traffic conditions are expected between 21:00 and 21:15 on 13 March 2026.
Lanes Closed : There is one of four lanes closed.
Nearest town: 19.88 miles from Codmore.
Location: clockwise between junctions J23 (Hatfield) and J24 (Potters Bar) .
Lane Closures : Lanes 1 and 2 are closed.
Due to: Broken down vehicle.
Time To Clear : The event is expected to clear between 20:45 and 21:00 on 13 March 2026.
Normal traffic conditions are expected between 21:15 and 21:30 on 13 March 2026.
Lanes Closed : There are two of four lanes closed.
Nearest town: 16.74 miles from Codmore.
Swakeleys Roundabout - There is a broken down car on the eastbound on slip road to the A40.
All lanes are open.
Nearest town: 11.7 miles from Codmore.
Horn Lane (All Directions) at the junction of Rectory Road - Three-way temporary signals in operation to facilitate works by BT.
Traffic is flowing well in the area.
Nearest town: 19.59 miles from Codmore.
Edgware Road West Hendon Broadway junction with Cool Oak Lane (All Directions).
There is a reported collision at this location.
All lanes are open.
Nearest town: 17.91 miles from Codmore.
The Parkway (Northbound) at the junction of North Hyde Road - Road is now fully open.
Traffic is moving well.
Nearest town: 16.59 miles from Codmore.
Watling Avenue (All Directions) at the junction of Orange Hill Road .
Traffic signals have been restored.
Traffic signals have been restored.
Nearest town: 16.11 miles from Codmore.
Western Avenue (Eastbound) near the junction of Victoria Road lane one blocked by a broken down van.
Vehicle has been recovered.
Traffis is flowing well.
Nearest town: 19.33 miles from Codmore.
Western Avenue (Eastbound) near the junction with Alperton Lane - Collision - Lane one reopened.
Traffic is flowing well for the time of day.
Nearest town: 17.36 miles from Codmore.
Lampton Road (Both Directions) at the junction of Alexandra Road - Temporary Traffic Signals to facilitate junction improvements works Traffic is flowing well.
Nearest town: 19.03 miles from Codmore.
All lanes reopened.
Traffic is moving well.
Nearest town: 18.15 miles from Codmore.
Forty Avenue (All Directions) at the junction of Preston Road.
Lane restrictions in place due to a collision.
The road has reopened.
Nearest town: 16.53 miles from Codmore.
High Street Harlesden (All Directions) at the junction of Wendover Road - Faulty traffic signals The traffic signals have been repaired.
Nearest town: 19.18 miles from Codmore.
Heston Road (All Directions) at the junction of Wheatlands - Temporary signals in operation to facilitate resurfacing works.
Expect some delays while the restrictions are in place.
Nearest town: 18.08 miles from Codmore.
Kymberley Road (One Way System) between Headstone Road and College Road - Road closure to facilitate resurfacing works
Nearest town: 14.22 miles from Codmore.
Location: The junction of the A414 and the A1M .
Due to: Congestion.
Normal traffic conditions are expected between 00:30 and 00:45 on 14 March 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 16.75 miles from Codmore.
Location: northbound at the junction with the M40 .
Due to: Congestion.
Normal traffic conditions are expected between 23:30 and 23:45 on 13 March 2026.
Nearest town: 9.93 miles from Codmore.
Location: northbound at the junction with the M40 .
Due to: Congestion.
Normal traffic conditions are expected between 23:00 and 23:15 on 13 March 2026.
Nearest town: 9.93 miles from Codmore.
Location: westbound exit slip at junction J6 (Slough) .
Due to: Congestion.
Normal traffic conditions are expected between 22:45 and 23:00 on 13 March 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 14.26 miles from Codmore.
Location: northbound exit slip at junction J4 (High Wycombe) .
Due to: Congestion.
Normal traffic conditions are expected between 22:15 and 22:30 on 13 March 2026.
Nearest town: 9.84 miles from Codmore.
Location: westbound between junctions J8 (High Wycombe) and J10 (Reading) .
Due to: Congestion.
Normal traffic conditions are expected between 21:30 and 21:45 on 13 March 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 18.7 miles from Codmore.
Location: northbound at the junction with the M40 .
Due to: Congestion.
Normal traffic conditions are expected between 21:30 and 21:45 on 13 March 2026.
Nearest town: 9.93 miles from Codmore.
Location: eastbound at junction J7 (Slough) .
Due to: Congestion.
Normal traffic conditions are expected between 21:30 and 21:45 on 13 March 2026.
Nearest town: 13.82 miles from Codmore.
Location: clockwise between junctions J21A (Watword) and J22 (St Albans) .
Due to: Congestion.
Normal traffic conditions are expected between 21:15 and 21:30 on 13 March 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Earlier
Due to: Caused by an earlier police incident.
Nearest town: 11.72 miles from Codmore.
Location: clockwise between junctions J22 (St Albans) and J23 (Hatfield) .
Due to: Congestion.
Normal traffic conditions are expected between 20:30 and 20:45 on 13 March 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 14.89 miles from Codmore.
Location: anticlockwise entry slip at junction J21 (M1) .
Due to: Roadworks.
Period : from 23:16 on 13 March 2026 to 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.16 miles from Codmore.
Location: clockwise entry slip at junction J21 (M1) .
Due to: Roadworks.
Period : from 23:17 on 13 March 2026 to 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.25 miles from Codmore.
Location: southbound exit slip at junction J6A (St Albans) .
Due to: Roadworks.
Period : from 23:13 on 13 March 2026 to 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.05 miles from Codmore.
Location: westbound exit slip at junction J4 .
Due to: Roadworks.
Period : from 23:06 on 13 March 2026 to 05:30 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 16.01 miles from Codmore.
Location: eastbound between the junctions with the M1 and the A405 .
Due to: Roadworks.
Period : from 22:32 on 13 March 2026 to 05:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 8.67 miles from Codmore.
Location: northbound between junctions J8 (Hemel Hstead) and J10 (Luton Airport) .
Due to: Roadworks.
Period : from 21:58 on 13 March 2026 to 05:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 8.9 miles from Codmore.
Location: northbound entry slip at junction J4 (High Wycombe) .
Due to: Roadworks.
Period : from 21:33 on 13 March 2026 to 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.95 miles from Codmore.
Location: eastbound exit slip at junction J4 .
Due to: Emergency barrier repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 15.84 miles from Codmore.
Location: eastbound between the junctions with the A308 and the A315 .
Lane Closures : Lane two is closed.
Due to: Emergency Roadworks.
Period : expect disruption until 05:00 on 14 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 19.09 miles from Codmore.
Location: southbound between junctions J6A (St Albans) and J6 (Watford A405) .
Lane Closures : The hard shoulder and lane 1 are closed.
Due to: Emergency barrier repairs.
Period : expect disruption until 05:30 on 14 March 2026.
Lanes Closed : There is one of three lanes closed.
Nearest town: 9.04 miles from Codmore.
Location: southbound exit slip at junction J12 (Flitwick) .
Due to: Roadworks.
Period : expect disruption until 05:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 17.9 miles from Codmore.
Location: southbound between the junctions with the M25 and the A5135 .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Emergency barrier repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 15.76 miles from Codmore.
Location: The A1M southbound at junction J1 .
Due to: Emergency barrier repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 15.95 miles from Codmore.
Location: The A1M southbound between junctions J3 and J1 .
Lane Closures : Lane two is closed.
Due to: Emergency barrier repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 16.12 miles from Codmore.
Location: anticlockwise exit slip at junction J23 (Hatfield) .
Lane Closures : Lane one is closed.
Due to: Emergency barrier repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 16.13 miles from Codmore.
Location: clockwise between junctions J14 (Heathrow Airport) and J14 (Heathrow Airport) .
Due to: Roadworks scheme.
Period : from 03:03 on 11 March 2026 to 05:30 on 19 March 2026.
Nearest town: 16.69 miles from Codmore.
Location: eastbound at junction J4 .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 15.84 miles from Codmore.
Location: southbound between junctions J8A (Thame) and J5 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 14 March 2026 to 06:00 on 15 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.01 miles from Codmore.
Location: southbound.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 18 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.99 miles from Codmore.
Location: clockwise at junction J23 (Hatfield) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.62 miles from Codmore.
Location: clockwise between junctions J22 (St Albans) and J23 (Hatfield) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 14.44 miles from Codmore.
Location: anticlockwise between junctions J18 (Rickmansworth) and J16 (M40) .
Lane Closures : The hard shoulder, lanes 1, 2 and 3 are closed.
Due to: Emergency barrier repairs.
Period : expect disruption until 05:30 on 14 March 2026.
Lanes Closed : There are three of four lanes closed.
Nearest town: 6.03 miles from Codmore.
Location: southbound exit slip at junction J8 (Hemel Hstead) .
Lane Closures : Lane two is closed.
Due to: Barrier repairs.
Period : expect disruption until 05:00 on 14 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 8.77 miles from Codmore.
Location: westbound between junctions J8 (High Wycombe) and J10 (Reading) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 14 March 2026 to 06:00 on 15 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 19.42 miles from Codmore.
Location: southbound between junctions J8 (Hemel Hstead) and J6 (Watford A405) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There are two of four lanes closed.
Nearest town: 8.91 miles from Codmore.
Location: clockwise at junction J23 (Hatfield) .
Lane Closures : Lane three is closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There is one of three lanes closed.
Nearest town: 15.62 miles from Codmore.
Location: clockwise between junctions J22 (St Albans) and J23 (Hatfield) .
Lane Closures : Lanes 3 and 4 are closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There are two of four lanes closed.
Nearest town: 15.15 miles from Codmore.
Location: anticlockwise between junctions J25 (Enfield) and J24 (Potters Bar) .
Lane Closures : Lanes 1, 2 and 3 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There are three of four lanes closed.
Nearest town: 19.56 miles from Codmore.
Location: southbound.
Lane Closures : Lane two is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There is one of three lanes closed.
Nearest town: 9.91 miles from Codmore.
Location: southbound exit slip at junction J4 (High Wycombe) .
Lane Closures : Lane two is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 10.16 miles from Codmore.
Location: southbound exit slip at junction J4 (High Wycombe) .
Lane Closures : Lane two is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 9.91 miles from Codmore.
Location: northbound between junctions J9 (Dunstable A5) and J11A .
Due to: Roadside Equipment Maintenance.
Period : from 15:26 on 4 March 2026 to 05:00 on 19 March 2026.
Nearest town: 10.7 miles from Codmore.
Location: westbound between junctions J5 (Colnbrook) and J7 (Slough) .
Due to: Roadworks scheme.
Period : from 20:07 on 13 March 2026 to 06:00 on 28 March 2026.
Nearest town: 14.37 miles from Codmore.
Location: eastbound entry slip at junction J6 (Slough) .
Due to: Roadworks scheme.
Period : from 21:02 on 11 March 2026 to 06:00 on 22 March 2026.
Nearest town: 14.18 miles from Codmore.
Location: anticlockwise between junctions J23 (Hatfield) and J22 (St Albans) .
Lane Closures : Lanes 3 and 4 are closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There are two of four lanes closed.
Nearest town: 15.56 miles from Codmore.
Location: anticlockwise at junction J23 (Hatfield) .
Lane Closures : Lane three is closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There is one of three lanes closed.
Nearest town: 15.91 miles from Codmore.
Location: The A1M northbound exit slip at junction J9 .
Due to: Roadworks scheme.
Period : from 21:00 on 11 March 2026 to 05:00 on 17 March 2026.
Nearest town: 18.72 miles from Codmore.
Location: westbound between junctions J8 (High Wycombe) and J11 (Basingstoke) .
Due to: Roadworks scheme.
Period : from 20:04 on 6 March 2026 to 06:00 on 15 March 2026.
Nearest town: 19.42 miles from Codmore.
Location: anticlockwise between junctions J22 (St Albans) and J21A (Watword) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 23:00 on 20 March 2026 to 05:30 on 21 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 12.12 miles from Codmore.
Location: northbound at junction J1 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 23:00 on 20 March 2026 to 05:30 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.24 miles from Codmore.
Location: westbound between the A437 and the junction with the A412 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 23:00 on 20 March 2026 to 05:30 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.54 miles from Codmore.
Location: The A1M northbound between junctions J5 and J6 .
Due to: Road marking works are planned.
Status : Pending.
Schedule : From 23:00 on 20 March 2026 to 05:30 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.96 miles from Codmore.
Location: The A1M northbound between junctions J3 and J4 .
Lane Closures : Lane three will be closed.
Due to: Road marking works are planned.
Status : Pending.
Schedule : From 23:00 on 20 March 2026 to 05:30 on 21 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 15.56 miles from Codmore.
Location: The A1M northbound at junction J4 .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Road marking works are planned.
Status : Pending.
Schedule : From 23:00 on 20 March 2026 to 05:30 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.61 miles from Codmore.
Location: The A1M northbound between junctions J4 and J5 .
Due to: Road marking works are planned.
Status : Pending.
Schedule : From 23:00 on 20 March 2026 to 05:30 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.71 miles from Codmore.
Location: The A1M northbound exit slip at junction J6 .
Due to: Road marking works are planned.
Status : Pending.
Schedule : From 23:00 on 20 March 2026 to 05:30 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.18 miles from Codmore.
Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 22:15 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 11.09 miles from Codmore.
Location: northbound at junction J11A .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 March 2026 to 05:00 on 21 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 15.19 miles from Codmore.
Location: northbound between junctions J11 (Luton) and J11A .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 March 2026 to 05:00 on 21 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 14.63 miles from Codmore.
Location: The A404M southbound exit slip at junction J9A .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.11 miles from Codmore.
Location: The A404M southbound exit slip at junction J9A .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.11 miles from Codmore.
Location: The A404M southbound entry slip at junction J9A .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.01 miles from Codmore.
Location: southbound between junctions J2 (Beaconsfield) and J1A (Watford) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 8.39 miles from Codmore.
Location: clockwise at junction J20 (Hemel Hstead) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 17 March 2026 to 05:30 on 18 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 6.53 miles from Codmore.
Location: southbound.
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:15 on 19 March 2026 to 05:30 on 20 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.16 miles from Codmore.
Location: southbound exit slip at junction J4 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:15 on 19 March 2026 to 05:30 on 20 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 9.91 miles from Codmore.
Location: anticlockwise between junctions J16 (M40) and J15 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 March 2026 to 05:00 on 20 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 12.01 miles from Codmore.
Location: southbound between junctions J8 (Hemel Hstead) and J6 (Watford A405) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 19 March 2026 to 05:30 on 20 March 2026.
Schedule : From 23:00 on 20 March 2026 to 06:00 on 21 March 2026.
Schedule : From 22:00 on 23 March 2026 to 05:30 on 24 March 2026.
Schedule : From 22:00 on 26 March 2026 to 05:30 on 27 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 8.65 miles from Codmore.
Location: southbound between junctions J6A (St Albans) and J6 (Watford A405) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 19 March 2026 to 05:30 on 20 March 2026.
Schedule : From 23:00 on 20 March 2026 to 06:00 on 21 March 2026.
Schedule : From 22:00 on 23 March 2026 to 05:30 on 24 March 2026.
Schedule : From 22:00 on 26 March 2026 to 05:30 on 27 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 9.04 miles from Codmore.
Location: northbound between junctions J1 (North Circular) and J2 (North Circular) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 19 March 2026 to 05:30 on 20 March 2026.
Schedule : From 23:00 on 20 March 2026 to 06:00 on 21 March 2026.
Schedule : From 22:00 on 23 March 2026 to 05:30 on 24 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 17.48 miles from Codmore.
Location: clockwise between junctions J16 (M40) and J17 (Maple Cross) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 19 March 2026 to 05:30 on 20 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 6.5 miles from Codmore.
Location: clockwise at junction J17 (Maple Cross) .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 19 March 2026 to 05:30 on 20 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 6.23 miles from Codmore.
Location: northbound between junctions J1A (Watford) and J2 (Beaconsfield) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 21:00 on 19 March 2026 to 05:00 on 20 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 10.27 miles from Codmore.
Location: southbound between the M40 and the junction with the A4155 .
Lane Closures : Lane two will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 20:30 on 19 March 2026 to 06:00 on 20 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 9.88 miles from Codmore.
Location: northbound between the A4155 and the junction with the M40 .
Lane Closures : Lane two will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 20:30 on 19 March 2026 to 06:00 on 20 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 10.39 miles from Codmore.
Location: eastbound at junction J8 (High Wycombe) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 19 March 2026 to 06:00 on 20 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 15.6 miles from Codmore.
Location: eastbound between junctions J10 (Reading) and J8 (High Wycombe) .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:00 on 19 March 2026 to 06:00 on 20 March 2026.
Nearest town: 16.43 miles from Codmore.
Location: eastbound exit slip at junction J8 (High Wycombe) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 19 March 2026 to 06:00 on 20 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.6 miles from Codmore.
Location: eastbound between junctions J10 (Reading) and J8 (High Wycombe) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 19 March 2026 to 06:00 on 20 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 16.43 miles from Codmore.
Location: northbound between junctions J3 (Loudwater) and J4 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 16 March 2026 to 18 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 8.29 miles from Codmore.
Location: northbound between junctions J2 (Beaconsfield) and J4 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 16 March 2026 to 18 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 8.07 miles from Codmore.
Location: northbound exit slip at junction J3 (Loudwater) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 16 March 2026 to 18 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 8.29 miles from Codmore.
Location: anticlockwise between junctions J23 (Hatfield) and J22 (St Albans) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 17 March 2026 to 05:30 on 18 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 14.64 miles from Codmore.
Location: southbound between junctions J9 (Dunstable A5) and J8 (Hemel Hstead) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 16 March 2026 to 21 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 10.85 miles from Codmore.
Location: northbound between junctions J9 (Dunstable A5) and J10 (Luton Airport) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 09:30 on 19 March 2026 to 15:30 on 19 March 2026.
Nearest town: 11.01 miles from Codmore.
Location: northbound between junctions J9 (Dunstable A5) and J10 (Luton Airport) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 09:30 on 19 March 2026 to 15:30 on 19 March 2026.
Nearest town: 11.61 miles from Codmore.
Location: southbound between junctions J8A (Thame) and J6 (Thame) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 22:15 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 19.97 miles from Codmore.
Location: southbound between junctions J4 (High Wycombe) and J2 (Beaconsfield) .
Lane Closures : Lanes 3 and 4 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 18 March 2026 to 21 March 2026.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 23 March 2026 to 28 March 2026.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 30 March 2026 to 2 April 2026.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 7 April 2026 to 9 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 8.31 miles from Codmore.
Location: clockwise exit slip at junction J13 (A30) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 18 March 2026 to 20 March 2026.
Schedule : From 23:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.79 miles from Codmore.
Location: clockwise entry slip at junction J13 (A30) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 18 March 2026 to 20 March 2026.
Schedule : From 23:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.42 miles from Codmore.
Location: clockwise at junction J13 (A30) .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 18 March 2026 to 20 March 2026.
Schedule : From 23:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 18.79 miles from Codmore.
Location: northbound between junctions J2 (Beaconsfield) and J4 (High Wycombe) .
Lane Closures : Lanes 3 and 4 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 18 March 2026 to 21 March 2026.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 23 March 2026 to 28 March 2026.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 30 March 2026 to 2 April 2026.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 7 April 2026 to 9 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 8.01 miles from Codmore.
Location: northbound between junctions J1 (North Circular) and J5 (Harrow A41) .
Lane Closures : Lane three will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 18 March 2026 to 05:30 on 19 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 14.27 miles from Codmore.
Location: clockwise between junctions J16 (M40) and J17 (Maple Cross) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 18 March 2026 to 05:30 on 19 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 7.26 miles from Codmore.
Location: clockwise between junctions J12 (Basingstoke) and J13 (A30) .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 18 March 2026 to 20 March 2026.
Schedule : From 23:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be one of five lanes closed.
Nearest town: 19.36 miles from Codmore.
Location: clockwise between junctions J15 (Slough) and J16 (M40) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 March 2026 to 05:00 on 19 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 13.63 miles from Codmore.
Location: northbound between junctions J1 (Slough) and J1A (Watford) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 05:00 on 19 March 2026.
Nearest town: 10.78 miles from Codmore.
Location: southbound entry slip from the A4155 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.11 miles from Codmore.
Location: southbound between the A4155 and the junction with the A308 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 19 March 2026.
Nearest town: 11.1 miles from Codmore.
Location: southbound between the A4155 and the junction with the A308 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 11.1 miles from Codmore.
Location: The A404M northbound exit slip at junction J9A .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.09 miles from Codmore.
Location: The A404M northbound exit slip at junction J9A .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.09 miles from Codmore.
Location: The A404M northbound entry slip at junction J9A .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.22 miles from Codmore.
Location: westbound between junctions J6 (Slough) and J7 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 23 March 2026 to 28 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 14.08 miles from Codmore.
Location: westbound at junction J6 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 23 March 2026 to 28 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.27 miles from Codmore.
Location: westbound between junctions J5 (Colnbrook) and J6 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 23 March 2026 to 28 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 14.37 miles from Codmore.
Location: westbound between junctions J5 (Colnbrook) and J6 (Slough) .
Lane Closures : Lane one is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There is one of four lanes closed.
Nearest town: 14.37 miles from Codmore.
Location: westbound entry slip at junction J6 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 23 March 2026 to 28 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.23 miles from Codmore.
Location: eastbound between junctions J8 (High Wycombe) and J6 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 21 March 2026 to 06:00 on 22 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 14.97 miles from Codmore.
Location: eastbound at junction J6 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 18 March 2026 to 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.09 miles from Codmore.
Location: eastbound between junctions J7 (Slough) and J6 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 18 March 2026 to 21 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 13.89 miles from Codmore.
Location: eastbound entry slip at junction J6 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 18 March 2026 to 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.18 miles from Codmore.
Location: eastbound entry slip at junction J7 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 21 March 2026 to 06:00 on 22 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.54 miles from Codmore.
Location: westbound exit slip at junction J6 (Slough) .
Lane Closures : Lane one is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 14.27 miles from Codmore.
Location: eastbound exit slip at junction J6 (Slough) .
Due to: Roadworks.
Period : expect disruption until 05:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 14.09 miles from Codmore.
Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 07:00 on 18 March 2026 to 23:59 on 19 March 2026.
Nearest town: 11.06 miles from Codmore.
Location: clockwise entry slip at junction J14 (Heathrow Airport) .
Lane Closures : The hard shoulder and lane 1 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 16.69 miles from Codmore.
Location: clockwise exit slip at junction J15 (Slough) .
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 15.74 miles from Codmore.
Location: westbound entry slip at junction J4B (Heathrow) from M25 clockwise.
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 15.59 miles from Codmore.
Location: eastbound entry slip at junction J4B (Heathrow) from the M25 clockwise.
Due to: Roadworks.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 15.59 miles from Codmore.
Location: southbound entry slip from the M40 .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 00:00 on 18 March 2026 to 05:00 on 18 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 9.81 miles from Codmore.
Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 13.27 miles from Codmore.
Location: southbound between junctions J6 (Thame) and J5 (High Wycombe) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 14.77 miles from Codmore.
Location: southbound between junctions J12 (Flitwick) and J11A .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 17 March 2026 to 05:00 on 18 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 17.9 miles from Codmore.
Location: southbound entry slip at junction J12 (Flitwick) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 17 March 2026 to 05:00 on 18 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.7 miles from Codmore.
Location: clockwise between junctions J16 (M40) and J18 (Rickmansworth) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 17 March 2026 to 05:30 on 18 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 6.44 miles from Codmore.
Location: clockwise entry slip at junction J17 (Maple Cross) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 17 March 2026 to 05:30 on 18 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 6.11 miles from Codmore.
Location: southbound between junctions J13 (Milton Keynes) and J12 (Flitwick) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 17 March 2026 to 05:00 on 18 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.67 miles from Codmore.
Location: southbound between junctions J4 (High Wycombe) and J2 (Beaconsfield) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 21:00 on 17 March 2026 to 00:00 on 18 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 7.86 miles from Codmore.
Location: anticlockwise exit slip at junction J23 (Hatfield) .
Lane Closures : Lane one will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 March 2026 to 05:30 on 17 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.13 miles from Codmore.
Location: southbound between junctions J8A (Thame) and J6 (Thame) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:15 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.98 miles from Codmore.
Location: southbound between junctions J9 (Dunstable A5) and J8 (Hemel Hstead) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 09:30 on 17 March 2026 to 15:30 on 17 March 2026.
Nearest town: 8.97 miles from Codmore.
Location: southbound between junctions J8A (Thame) and J6 (Thame) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 09:30 on 17 March 2026 to 15:30 on 17 March 2026.
Nearest town: 16.78 miles from Codmore.
Location: southbound between junctions J10 (Luton Airport) and J9 (Dunstable A5) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 09:30 on 17 March 2026 to 15:30 on 17 March 2026.
Nearest town: 11.28 miles from Codmore.
Location: southbound exit slip at junction J9 (Dunstable A5) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 09:30 on 17 March 2026 to 15:30 on 17 March 2026.
Nearest town: 11.07 miles from Codmore.
Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 07:00 on 17 March 2026 to 23:59 on 18 March 2026.
Nearest town: 10.95 miles from Codmore.
Location: southbound between junctions J2 (Beaconsfield) and J1A (Watford) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 22:15 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 8.39 miles from Codmore.
Location: northbound between junctions J1 (North Circular) and J2 (North Circular) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 16 March 2026 to 05:30 on 19 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 17.48 miles from Codmore.
Location: southbound between junctions J12 (Flitwick) and J11A .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 March 2026 to 05:00 on 17 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 16.44 miles from Codmore.
Location: northbound between junctions J6 (Thame) and J8A (Thame) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:15 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.09 miles from Codmore.
Location: anticlockwise between junctions J16 (M40) and J15 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 March 2026 to 05:30 on 17 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 12.68 miles from Codmore.
Location: southbound entry slip at junction J5 (Harrow A41) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.16 miles from Codmore.
Location: southbound between junctions J6 (Watford A405) and J5 (Harrow A41) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 9.59 miles from Codmore.
Location: northbound at junction J11 (Luton) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 March 2026 to 05:00 on 17 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 13.76 miles from Codmore.
Location: northbound between junctions J10 (Luton Airport) and J11 (Luton) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 March 2026 to 05:00 on 17 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 13.46 miles from Codmore.
Location: clockwise between junctions J16 (M40) and J17 (Maple Cross) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 March 2026 to 05:30 on 17 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 8.03 miles from Codmore.
Location: southbound exit slip at junction J2 (North Circular) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.97 miles from Codmore.
Location: northbound exit slip at junction J11 (Luton) .
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 March 2026 to 05:00 on 17 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.76 miles from Codmore.
Location: southbound exit slip at junction J4 (Edgware A41) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.45 miles from Codmore.
Location: southbound.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.09 miles from Codmore.
Location: southbound between junctions J5 (Harrow A41) and J1 (North Circular) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 9.98 miles from Codmore.
Location: southbound exit slip at London Gateway Services.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.91 miles from Codmore.
Location: southbound between junctions J2 (Beaconsfield) and J1A (Watford) .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 21:00 on 16 March 2026 to 05:00 on 17 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 9.61 miles from Codmore.
Location: northbound between the A4012 and the junction with the A4146 Bletchley South.
Lane Closures : Lane two will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 20:00 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.64 miles from Codmore.
Location: northbound between junctions J1 (Slough) and J1A (Watford) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 15 March 2026 to 06:00 on 16 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 10.89 miles from Codmore.
Location: northbound at junction J1 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 15 March 2026 to 06:00 on 16 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.2 miles from Codmore.
Location: westbound between the junctions with the A437 and the M40 .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 15 March 2026 to 06:00 on 16 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 11.54 miles from Codmore.
Location: southbound between junctions J1A (Watford) and J1 (Slough) .
Lane Closures : Lane three will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 15 March 2026 to 06:00 on 16 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 10.44 miles from Codmore.
Location: southbound between junctions J4 (High Wycombe) and J3 (Loudwater) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 09:30 on 16 March 2026 to 15:30 on 16 March 2026.
Nearest town: 8.97 miles from Codmore.
Location: southbound between junctions J5 (Harrow A41) and J1 (North Circular) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 09:30 and 16:00 from 16 March 2026 to 18 March 2026.
Nearest town: 11.17 miles from Codmore.
Location: clockwise exit slip at junction J21 (M1) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 8.78 miles from Codmore.
Location: clockwise between junctions J20 (Hemel Hstead) and J21A (Watword) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 6.6 miles from Codmore.
Location: southbound between junctions J8 (Hemel Hstead) and J6 (Watford A405) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 8.97 miles from Codmore.
Location: northbound between junctions J5 (Harrow A41) and J6A (St Albans) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 9.55 miles from Codmore.
Location: southbound between junctions J6A (St Albans) and J6 (Watford A405) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 9.04 miles from Codmore.
Location: clockwise at junction J20 (Hemel Hstead) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 6.53 miles from Codmore.
Location: clockwise between junctions J19 (Watford) and J20 (Hemel Hstead) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 6.58 miles from Codmore.
Location: southbound entry slip at junction J4 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:15 on 15 March 2026 to 05:30 on 16 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 9.83 miles from Codmore.
Location: anticlockwise between junctions J14 (Heathrow Airport) and J13 (A30) .
Lane Closures : Lanes 2, 3, 4 and 5 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 18 March 2026.
Lanes Closed : There will be four of five lanes closed.
Nearest town: 17.41 miles from Codmore.
Location: anticlockwise at junction J14 (Heathrow Airport) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 18 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 17.01 miles from Codmore.
Location: eastbound exit slip at junction J4 .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 18 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.84 miles from Codmore.
Location: eastbound entry slip at junction J4B (Heathrow) .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.54 miles from Codmore.
Location: eastbound exit slip at junction J4 .
Lane Closures : Lane two will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.89 miles from Codmore.
Location: eastbound between junctions J4B (Heathrow) and J4 .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : There will be one of five lanes closed.
Nearest town: 15.63 miles from Codmore.
Location: westbound exit slip at junction J4 for Heathrow.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 18 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16 miles from Codmore.
Location: westbound exit slip at junction J4 .
Lane Closures : Lane two will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 19 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.12 miles from Codmore.
Location: westbound exit slip at junction J4 .
Lane Closures : Lane two will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 06:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:30 on 16 March 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 16 March 2026 to 18 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.03 miles from Codmore.
Location: anticlockwise between junctions J25 (Enfield) and J24 (Potters Bar) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 14 March 2026 to 05:00 on 15 March 2026.
Schedule : From 22:30 on 15 March 2026 to 05:00 on 16 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 19.56 miles from Codmore.
Location: northbound between junctions J11A and J14 (Milton Keynes) .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 19 March 2026 to 05:00 on 20 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.67 miles from Codmore.
Location: northbound between junctions J9 (Dunstable A5) and J11A .
Lane Closures : Lanes 1, 2, 3, 4 and 5 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 18 March 2026 to 05:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.9 miles from Codmore.
Location: westbound exit slip to the A412 .
Lane Closures : Lane two is closed.
Due to: Planned Roadworks.
Period : expect disruption until 05:30 on 14 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 11.24 miles from Codmore.
Location: northbound exit slip at junction J5 (High Wycombe) .
Due to: Road repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 13.65 miles from Codmore.
Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 13.27 miles from Codmore.
Location: southbound entry slip at junction J5 (High Wycombe) .
Due to: Road repairs.
Period : expect disruption until 05:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 13.87 miles from Codmore.
Location: southbound at junction J5 (High Wycombe) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 14 March 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 13.9 miles from Codmore.
Location: southbound exit slip at junction J12 (Flitwick) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 March 2026 to 05:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.9 miles from Codmore.
Location: southbound entry slip at junction J12 (Flitwick) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 March 2026 to 05:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.7 miles from Codmore.
Location: northbound between junctions J8 (Hemel Hstead) and J9 (Dunstable A5) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 March 2026 to 05:00 on 19 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 10.07 miles from Codmore.
Location: northbound entry slip at junction J9 (Dunstable A5) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 March 2026 to 05:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.87 miles from Codmore.
Location: northbound entry slip at junction J11 (Luton) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 March 2026 to 05:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.91 miles from Codmore.
Location: northbound exit slip at junction J10 (Luton Airport) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 March 2026 to 05:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 12.37 miles from Codmore.
Location: northbound exit slip at junction J11 (Luton) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 March 2026 to 05:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.76 miles from Codmore.
Location: northbound between junctions J11 (Luton) and J11A .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 March 2026 to 05:00 on 20 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.55 miles from Codmore.
Location: southbound between the junctions with the A5183 and the M1 .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 March 2026 to 05:00 on 20 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.27 miles from Codmore.
Location: northbound exit slip at junction J11A .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 March 2026 to 05:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.19 miles from Codmore.
Location: southbound exit slip at junction J11A .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 March 2026 to 05:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.66 miles from Codmore.
Location: southbound between junctions J12 (Flitwick) and J11A .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 21 March 2026 to 05:00 on 22 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 16.32 miles from Codmore.
Location: southbound entry slip at Toddington Services.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 March 2026 to 05:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.99 miles from Codmore.
Location: southbound exit slip at Toddington Services.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 March 2026 to 05:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.12 miles from Codmore.
Location: southbound between junctions J8A (Thame) and J6 (Thame) .
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 09:30 and 15:30 from 16 March 2026 to 20 March 2026.
Schedule : Expect disruption everyday between 09:30 and 15:30 from 23 March 2026 to 27 March 2026.
Schedule : Expect disruption everyday between 09:30 and 15:30 from 30 March 2026 to 31 March 2026.
Nearest town: 16.74 miles from Codmore.
Location: northbound between junctions J6 (Watford A405) and J8 (Hemel Hstead) .
Due to: Road repairs.
Period : expect disruption until 05:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.17 miles from Codmore.
Location: northbound between junctions J6 (Watford A405) and J8 (Hemel Hstead) .
Lane Closures : Lanes 2, 3 and 4 are closed.
Due to: Road repairs.
Period : expect disruption until 05:00 on 14 March 2026.
Lanes Closed : There are three of four lanes closed.
Nearest town: 9.02 miles from Codmore.
Location: anticlockwise exit slip at junction J21 (M1) .
Due to: Road repairs.
Period : expect disruption until 05:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.62 miles from Codmore.
Location: northbound entry slip at junction J6A (St Albans) .
Due to: Road repairs.
Period : expect disruption until 05:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.04 miles from Codmore.
Location: northbound at junction J6 (Watford A405) .
Due to: Road repairs.
Period : expect disruption until 05:00 on 14 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.22 miles from Codmore.
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