East - Maintenance schemes

In late 2024 the culvert supporting the A1 over Billing Brook at Water Newton near Peterborough was damaged in a traffic collision.

As a result, we had to close the A1 southbound lane one over Billing Brook for safety reasons.

We need to temporarily re-align the A1 southbound so we can open two lanes for traffic while avoiding the damaged culvert

We'll start overnight preparations for main works from 1 September. On 12 September, we'll start realigning the carriageway. We expect this will take us seven weekends, weather permitting.

We'll start repairing the damaged culvert in 2026-27. 

Temporary speed limit

We'll impose a temporary 40mph speed limit:

• while we work
• when we re-open two narrow lanes to traffic on the temporary alignment

Closures

We'll need to close the A1 southbound between Wansford and Alwalton while we work:

Monday 1 to Friday 12 September

Overnight lane closures (9pm - 5am) on weeknights only.

Monday 8 to Thursday 11 September - A1 southbound carriageway and A1 northbound lane 2

Closed overnight (9pm - 5am).

Friday 12 September to late October - A1 southbound carriageway and A1 northbound lane 2 weekend closures

Closed every weekend between 9pm Friday and 5am Monday.

Between 22 September and 2 October - A1 northbound carriageway

Closed overnight (9pm - 5am):

• Monday 22 September to Thursday 25 September
• Monday 29 September to Thursday 2 October  

Diversion

If you're travelling southbound on the A1 through Wansford:

• exit the A1 at Wansford Interchange onto the A47 
• exit the A47 at Thorpewood Interchange onto the A1260 
• continue on the A1260 to Hampton Roundabout 
• turn right onto the A1139 
• rejoin the A1/A1(M) at Fletton Parkway Interchange  

View diversion route

Please remember that closures can change at short notice. You can check the latest information on our daily closures page or find live travel information on our Traffic England site. Our travel alerts give details of live incidents on our network.

We’re surveying the A120 between Marks Farm Roundabout and Parkeston Roundabouts for LED lighting installation.

We’ll work weeknights only (8pm to 6am) from Monday 22 September to Saturday 27 September, weather permitting.  

Overnight (8pm-6am) lane closures and traffic management

To work safely, we’ll

• close one lane on the roundabouts
• manage traffic on the outside ring of the roundabouts

One lane will still be open to traffic on each roundabout, so you won’t have to make a diversion.

Traffic management will be in place on these dates:

8pm Monday 22 to 6am Tuesday 23 September - A120 Marks Farm Roundabout

• traffic management on outer ring of roundabout
• one lane closed on the approach to the roundabout. 

8pm Tuesday 23 to 6am Wednesday 24 September – A120 Horsley Cross

One lane closed on both east and westbound carriageways.

Wednesday 24 to Friday 27 September -  A120 Parkeston Roundabout

Traffic management on outer ring of roundabout overnight (8pm to 6am) for three nights.

Please remember that closures can change at short notice. You can check the latest information on our daily closures page or find live travel information on our Traffic England site. Our travel alerts give details of live incidents on our network.

This work is part of a bigger project to improve the A120 and M11. We’ll share details of future closures and diversions when they’re confirmed.

We’re surveying the A120 between Marks Farm Roundabout and Parkeston Roundabouts for LED lighting installation.

We’ll work weeknights only (8pm to 6am) from Monday 22 September to Saturday 27 September, weather permitting.  

Overnight (8pm-6am) lane closures and traffic management

To work safely, we’ll

• close one lane on the roundabouts
• manage traffic on the outside ring of the roundabouts

One lane will still be open to traffic on each roundabout, so you won’t have to make a diversion.

Traffic management will be in place on these dates:

8pm Monday 22 to 6am Tuesday 23 September - A120 Marks Farm Roundabout

• traffic management on outer ring of roundabout
• one lane closed on the approach to the roundabout. 

8pm Tuesday 23 to 6am Wednesday 24 September – A120 Horsley Cross

One lane closed on both east and westbound carriageways.

Wednesday 24 to Friday 27 September -  A120 Parkeston Roundabout

Outer ring of roundabout closed overnight (8pm to 6am) for three nights.

This work is part of a bigger project to improve the A120 and M11. We’ll share details of future closures and diversions when they’re confirmed.

Our work includes:

• renewing road markings and studs
• repairing cracks
• replacing marker posts
• resurfacing

We’ll work overnight on weeknights only (8pm to 6am). We expect our work will take approximately four weeks starting from Monday 29 September, weather permitting.

Closures

To work safely, we’ll need these closures.

Monday 29 September to Saturday 4 October - A14 eastbound from junctions 18 to 21

Closed overnight (8pm to 6am).

A14 eastbound junction 18 to 21 diversion

Local residents will have access up to junction 16. We'll redirect all other drivers past this point to junction 13 to follow this diversion

If you're driving eastbound on the A13:

• leave the A14 at junction 13
• at Thrapston Interchange, take the first exit onto the A605 and head northbound
• continue on the A605 to Fletton Parkway Interchange
• at Fletton Parkway Interchange, take the third exit to join the A1(M)
• merge onto the A1, which connects to the A14 by the fast-link entry slip at junction 22  

A14 eastbound junction 18 to 21 diversion map.

Tuesday 7 October to Saturday 25 October – A14 westbound junctions 21 to 16 

Closed overnight (8pm to 6am). 

A14 westbound junctions 21 to 16 diversion

If you're driving westbound on the A14:

• leave the A14 at junction 22 and join the A1 via the fast-link northbound entry slip road
• merge onto the A1(M) and continue towards Fletton Parkway Interchange
• take the exit slip road at junction 17
• at Fletton Parkway Interchange, take the first exit to join the A605 southbound
• stay on the A605 until you reach junction 13 of the A14 (Thrapston Interchange), where the diversion ends 

A14 westbound diversion junctions 21 to 16 diversion map.

A14 eastbound from junction 13 non-motorway diversion

If you're driving eastbound on the A14 from junction 13 by the non-motorway diversion:

• leave the A14 at junction 13 (Thrapston Interchange) and join the A605 northbound
• continue onto Fletton Parkway (A1139)
• follow The Serpentine (A1260) and London Road (A15) to Norman Cross Roundabout
• take the B1043 southbound and join the A1307 at Ermine Street
• at the A1307/A141 junction, take the third exit onto the A141 towards Brampton Interchange
• rejoin the A14 at junction 21 

A14 eastbound from junction 13 non-motorway diversion map.

A14 westbound from junction 22 non-motorway diversion

If you're travelling westbound on the A14 from junction 22 by the non motorway diversion:

• leave the A14 at junction 22 and join the A1 northbound
• at Brampton Hut Interchange, take the fourth exit onto the A141
• continue on the A141 and join the A1307, then follow the B1043 northbound
• at Norman Cross Roundabout, take the A15 (London Road) 
  continue through Lodge Way and The Serpentine to Hampton Roundabout
• take the first exit onto Fletton Parkway (westbound)
• at Fletton Parkway Interchange, join the A605 southbound
• follow the A605 to rejoin the A14 at junction 13 (Thrapston Interchange) 

A14 westbound from junction 22 non-motorway diversion map.

Please remember that closures can change at short notice. You can check the latest information on our daily closures page or find live travel information on our Traffic England site. Our travel alerts give details of live incidents on our network.

Closures and diversions

We'll work overnight on weekdays only, from 8pm to 6am, Monday 11 August to Saturday 4 October 2025. Work depends on weather conditions.

Saturday 30 August - A421 westbound from Marsh Leys Interchange to Marston Moretaine

Closed overnight (8pm to 6am). We need this extra closure to finish our work.

Diversion

• Woburn Road
• continue to Bedford Road
• then rejoin A421 westbound at Marston Moretaine Roundabout

A421 westbound from Marsh Leys Interchange to Marston Moretaine diversion route

Tuesday 26 August to Saturday 6 September - A421 westbound from Marsh Leys to M1 junction 13

Closed overnight (8pm to 6am).

Diversion

• head eastbound on A421 to Elstow Interchange
• take A6 towards Clophill
• at Clophill Roundabout take 3rd exit onto A507, continue west to rejoin A421

A421 westbound from Marsh Leys to M1 junction 13 diversion route

Monday 8 September to Saturday 4 October - A421 eastbound from M1 junction 13 to Marsh Leys

Closed overnight (8pm to 6am).

Follow the diversion for A421 westbound from Marsh Leys to M1 junction 13  in the opposite direction.

This work is part of ongoing improvements including A421 noise barrier replacement and A421 Marston Moretaine pumping station work.

Please remember that closures can change at short notice. You can check the latest information on our daily closures page or find live travel information on our Traffic England. Our travel alerts give details of live incidents on our network.

Work

We need to replace bridge joints and carry out resurfacing work at Trowse Interchange on the A47. This will ensure the A47 continues to remain in a safe and serviceable condition. 

We'll work overnight (8pm to 6pm) from Monday 15 September to Saturday 20 September, weather permitting. 

Closures and diversions 

To work safely, we will need to close the westbound carriageway on the A47 at Trowse Interchange, and divert traffic as detailed below: 

Traffic travelling westbound on the A47 will need to: 

• Exit the A47 at Trowse Interchange
• rejoin the A47 westbound using the on-slip road at Trowse Interchange 

To complete the westbound work, we will also need to close one lane on the eastbound carriageway. 

A47 Trowse Interchange diversion map

Please remember that closures can change at short notice. You can check the latest information on our daily closures page or find live travel information on our Traffic England. Our travel alerts give details of live incidents on our network.

Closures 

Monday 8 September to December - M1 northbound between junctions 8 (Hemel Hempstead) to 9 (Flamstead) 

Closed overnight (10pm - 5am) wile we work.

We'll mainly work Monday to Friday and on some weekends.

M1 northbound junction 8 to 9 diversion 

If you want to travel northbound on the M1: 

• continue north on the M1, leave at junction 8 then merge into the A414
• continue on the A414, then head north on the Leighton Buzzard Road
• at the roundabout, take the third exit onto Link Road
• continue past Redbourn and rejoin the M1 at junction 9

M1 northbound junction 8 to 9 diversion map. 

Please remember that closures can change at short notice. You can check the latest information on our daily closures page or find live travel information on our Traffic England site. Our travel alerts give details of live incidents on our network.

We’re doing safety improvements on the M11 between junctions 7 and 9. 

We’ll work weeknights only (9pm to 5am) from Monday 8 September to Saturday 20 September, weather permitting. 

Closures and diversions 

To work safely, we’ll need the following closures: 

• M11 junctions 7 to 8 northbound 

Those wishing to travel on the M11 northbound: 

• Exit at junction 7 (Harlow)
• via the A414
• A1184
• A120 
• before rejoining the M11 at junction 8 (Birchanger) 

M11 junctions 8 to 9 road users

Lane closures will be in place between junctions 8 and 9 but no diversion is necessary as road users will still be able to use the single lanes on the carriageway. 

A1025 access from the M11  

Traffic will still be able to access the A1025 from the M11 southbound at junction 7a. 

Other improvements on the M11  

You may see other road improvement works along the M11 between junctions 9 and 12 while this scheme is underway. These are part of a different project but are scheduled to run at the same time.  

M11 junction 7 to 8 northbound closure and diversion map

Please remember that closures can change at short notice. You can check the latest information on our daily closures page or find live travel information on our Traffic England. Our travel alerts give details of live incidents on our network.