East - Maintenance schemes

We're undertaking drainage improvements and resurfacing works to reduce the risk of flooding on the A1.

Closure

3 to 28 August - A1 northbound between junction 17 and the A1/A47 junction

Closed overnight (8pm-6am) 

Diversion

• take Fletton Parkway
• turn left onto Nene Parkway
• at Thorpe Wood Interchange roundabout, take the first exit
• re-join the A1 at the A1/A47 junction

Diversion route map

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

Closures

Monday 17 August to Tuesday 22 September 2026 - A1(M) junction 9 northbound exit slip

Closed overnight (9pm - 5am) weeknights only, excluding Bank Holiday Monday 31 August.

Hard shoulder and one lane northbound also closed.

Diversion - 

• continue northbound on the A1(M) past junction 9 (Letchworth Gate Interchange)
• exit the A1(M) at junction 10
• re-join the A1(M) southbound
• exit at junction 9 using the southbound exit slip road
• continue to the local road network, including the A505

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

We're working on:

• Fiveways Roundabout, where the A11 meets the A1101 and A1065 near Barton Mills
• A11 southbound carriageway. 

We'll work overnight (9pm-4.30am) on weeknights only.

Closures - Wednesday 2 to Thursday 17 September.

At times while we work, we'll need to close:

A11 in both directions between Elveden and Red Lodge

A11 Northbound diversion-

• leave the A11 and follow the A14 eastbound
• continue through Compiegne Way to the A134 northbound
• re-join the A11 at Thetford

A11 Northbound diversion map.

A11 Southbound diversion-

• leave the A11 southbound at the London/Elveden Road junction
• join the A134 at Barnham
• follow the A134 south to the A14
• take Junction 37 on the Newmarket Bypass
• re-join the A11 at Junction 38

A11 Southbound diversion map.

A1101 Mildenhall Road between Fiveways Roundabout and Icklingham

Diversion - both directions

• follow the A1065 and B1112
• rejoin the A1101 at Icklingham

A1101 Mildenhall Road diversion map.

You'll still be able to travel between A1065 Brandon Road and A1101 towards Mildenhall.

We'll keep part of the roundabout open with two-way traffic lights, so you won't need a diversion.

We'll maintain access for emergency services throughout our works.

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

We're keeping two-way traffic lights on Fryerning Lane bridge while we work with the local authority on a long-term solution.

Works

We repaired bridge damage caused by a road traffic incident in 2018. Our detailed assessment shows the bridge is safe to use, but the edge beams need protection from vehicle loading.

Closures

There are no road closures. Protective barriers near both verges have narrowed the road, so the bridge cannot safely carry two-way traffic at the same time.

Diversions

There is no diversion route. Two-way traffic lights are in place to control traffic over the bridge.

Next steps

We're working with the local authority to identify a long-term solution and will share more information once the next steps are confirmed.

Diversion routes: No diversion route. Two-way traffic lights remain in place on the bridge to manage traffic safely.

We’ve temporarily closed the west footway on Bascule Bridge after identifying damage to the surface.

We found a defect in the concrete at the start of the footpath which has created a trip hazard for people using the footway. 

Our contractors are investigating the issue and finalising how we’ll repair it.

We’ll start work as soon as possible and re-open the footway once it’s safe to use. 

Bascule Bridge remains open and fully operational. This closure only affects the west footway. 

Closures

A12 Lowestoft Bascule Bridge west footway

Closed 24/7 until further notice.

Diversions

If you need to cross the bridge:

• use controlled crossing points 
• safely access the east side footway 
• continue your journey across the bridge 

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

Closures

Monday 3 August (one night), Wednesday 12 to Friday 14 August (three nights), and Monday 17 August (one night) from 8pm to 6am - A120 eastbound between Dunmow West Interchange and Dunmow South Interchange

We're closing one lane overnight (8pm - 6am).

Wednesday 5 August and Thursday 6 August (2 nights) - A120 eastbound between Dunmow West Interchange and Dunmow South Interchange

Closed overnight (8pm - 6am) for two nights.

Friday 7 August, Saturday 8 August and Sunday 9 August 8pm to 6am (three nights) - A120 westbound between Horsley Cross Roundabout and Harwich Road Roundabout 

Monday 17 August - A120 westbound at Dunmow South Interchange

We're closing one lane overnight (8pm - 6am) for one night.

Thursday 27 August - A120 westbound at Horsley Cross Roundabout

We're closing one lane overnight (8pm - 6am) for one night.

Diversions

A120 eastbound between Dunmow West Interchange and Dunmow South Interchange diversion

If you want to travel eastbound on the A120:

• leave the A120 eastbound at Dunmow West Interchange
• join the B1256 and continue eastbound
• re-join the A120 eastbound at Dunmow South Interchange and continue your journey

A120 eastbound between Dunmow West Interchange and Dunmow South Interchange closure and diversion map

A120 westbound between Horsley Cross Roundabout and Harwich Road Roundabout diversion

If you want to travel westbound on the A120:

• leave the Horsley Cross Roundabout onto the B1035
• continue on the B1035 towards Thorpe Green
• at the T-junction, turn right onto the B1033 Colchester Road
• continue on the B1033 through Weeley-to-Weeley Roundabout
• at the roundabout, take the second exit onto the A133
• continue on the A133 and re-join the A120 westbound to continue your journey

A120 westbound between Horsley Cross Roundabout and Harwich Road Roundabout closure and diversion map

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

Closures and Diversion

Saturday 22 and Sunday 23 August, Saturday 5 and Sunday 6 September

A120 in both directions between Marks Farm Roundabout and Notley Green.

Closed overnight (8pm-6am). 

If you're travelling westbound on the A120 via Marks Farm Roundabout: 

• turn around and head back to the Marks Tey Interchange at the A12 junction 25 
• at the Prince of Wales Roundabout, take the second exit onto London Road and join the A12 southbound 
• continue on the A12 through Hatfield Peverel to junction 19, Boreham Interchange 
• at Boreham Interchange, use Generals Lane Roundabout to join the A131 northbound 
• follow the A131 northbound to the A120 Panners Interchange 
• from the Panners Interchange, continue westbound on the A120 or follow signs into Braintree 

Westbound diversion route map

If you're travelling eastbound on the A120 via Galleys Corner Roundabout:

• leave the A120 at Panners Interchange and join the A131 
• continue on the A131 to the A12 at junction 19, Boreham Interchange 
• at Boreham Interchange, join the A12 northbound from Generals Lane Roundabout 
• continue on the A12 northbound to junction 25, Marks Tey Interchange 
• at Marks Tey Interchange, re-join the A120 eastbound to continue your journey 

Eastbound diversion route map

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

We'll work overnight (8pm to 6am) on weeknights only, starting Monday 8 June 2026 for around four months.

To work safely, we'll keep one lane open on the A14 but we need to close some slip roads.

Closures and diversions

Monday 8 June, and Wednesday 10 to Monday 22 June - A14 eastbound junction 33 entry slip road - closed overnight (8pm to 6am) on weeknights only.

If you want to join the A14 eastbound at junction 33:

• join the A14 westbound
• continue to junction 32 (Histon Interchange)
• turn around and re-join the A14 eastbound

A14 eastbound junction 33 (Milton Interchange) entry slip road closure and diversion map 

Tuesday 9 June - A14 westbound junction 34 entry slip road - closed overnight (8pm to 6am)

If you want to join the A14 westbound at junction 34:

• continue south on the B1047
• turn onto the A1303 (Newmarket Road)
• follow the A1303 to junction 35 (Quy Interchange)
• join the A14 westbound

A14 junction 34 westbound entry slip road closure and diversion map 

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

We're repairing the road surface and drainage, and replacing kerbs on the A14 eastbound between junctions 21 and 22.

Closures and Diversion

• 9pm Friday 7 August to 5am Monday 10 August
• 9pm Friday 21 August to 5am Monday 24 August

The road will be closed continuously during both weekends, weather permitting.

If you're travelling eastbound on the A14:

• leave the A14 at junction 21
• at the roundabout, take the A141 towards Brampton Hut
• continue to Brampton Hut Interchange
• take the third exit onto the A1 southbound
• leave the A1 at junction 22 and use the slip road to re-join the A14 eastbound

Diversion route map

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

Closures and diversions

24 August (8pm – 1am) - A47 Watton Interchange eastbound exit slip road and westbound entry slip road

Diversion (eastbound exit):

• continue to Thickthorn Interchange
• turn around and join the A47 westbound
• travel back to Watton Interchange to exit

A47 Watton Interchange eastbound exit slip road closure and diversion map

Diversion (westbound entry):

• join the A47 eastbound
• continue to Thickthorn Interchange
• turn around and join the A47 westbound

A47 Watton Interchange westbound entry slip road closure and diversion map

25 August (1am – 6am) - A47 Watton Interchange westbound exit slip road and eastbound entry slip road

Diversion (westbound exit):

• continue to Longwater Interchange
• turn around and join the A47 eastbound
• travel back to Watton Interchange to exit

A47 Watton Interchange westbound exit slip road closure and diversion map

Diversion (eastbound entry):

• join the A47 westbound
• continue to Longwater Interchange
• turn around and join the A47 eastbound

A47 Watton Interchange eastbound entry slip road closure and diversion map

25 – 26 August (8pm – 1am) - A47 Ipswich Interchange westbound entry slip road

Diversion:

• join the A47 eastbound
• continue to Trowse Newton Interchange
• turn around and join the A47 westbound

A47 Ipswich Interchange westbound entry slip road closure and diversion map

26 August (1am – 6am) - A47 Ipswich Interchange westbound exit slip road and eastbound entry slip road

Diversion (westbound exit):

• continue to Thickthorn Interchange
• turn around and join the A47 eastbound
• travel back to Ipswich Interchange to exit

A47 Ipswich Interchange westbound exit slip road closure and diversion map

Diversion (eastbound entry, from Ipswich Roundabout):

• join the A47 westbound
• continue to Thickthorn Interchange
• turn around and join the A47 eastbound

A47 Ipswich Interchange eastbound etry slip road closure and diversion map

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

Closures

24 – 28 August - A1 northbound at A47 junction (Wansford to Wothorpe)

Closed overnight (8pm - 6am), weeknights only, subject to weather.

Diversion 

• leave the A1 at the A47 Wansford junction
• follow the A47 westbound
• then the A43 northbound
• rejoin the A1 at Wothorpe/Stamford

Emergency vehicles can still access the roadworks throughout.

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

Closures

10 – 28 August - A47 both directions, between junction 20 (Dogsthorpe Interchange) and Welland Roundabout

Closed overnight (8pm - 6am), weeknights only, weather permitting.

Diversions

Westbound: 

• follow A1139 via Littlewood Roundabout
• then A15 via Eye Roundabout
• rejoining the A47 at Dogsthorpe Roundabout

A47 between junction 20 (Dogsthorpe Interchange) and Welland Roundabout diversion map

Eastbound:

Follow the same route in reverse

Diversion for A16 traffic:

• follow A1175 and A15
• rejoining the A47 at Dogsthorpe Roundabout

A47 between junction 20 (Dogsthorpe Interchange) and Welland Roundabout. A16 Diversion map

Diversion for Welland Road traffic:

• follow Welland Road
• St Paul's Road and Fulbridge Road
• rejoining the A47 at Fulbridge Interchange

A47 between junction 20 (Dogsthorpe Interchange) and Welland Roundabout. Welland Road Diversion map

Emergency vehicles can access the works site when needed.

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

Closures

5 – 20 September - M1 northbound, junctions 11a to 13.

Closed overnight (9pm - 5am) on three weekends:

• Saturday 5 and Sunday 6 September
• Saturday 12 and Sunday 13 September
• Saturday 19 and Sunday 20 September

Diversion 

• leave the M1 at junction 11a and take the second exit onto the A5 Dunstable Northern Bypass
• follow the A5 to Thorn Roundabout, taking the second exit onto A5 Watling Street
• at the next roundabout, take the second exit onto the A505
• follow the A505 to Billington Road Roundabout, continuing straight onto the A4146
• follow the A4146 to Kelly's Kitchen Roundabout, taking the
• second exit back onto the A5 northbound
• take the next exit for Bletcham Roundabout, then the third exit onto Bletcham Way towards Browns Wood Roundabout
• at Browns Wood Roundabout, take the first exit onto Tongwell Street to Brinklow Roundabout
• take the third exit onto Standing Way, then the second exit at Kingston Roundabout onto the A421
• follow the A421 to M1 junction 13 and rejoin the M1 northbound

Emergency vehicles will have access through the works, with caution.

M1 northbound junction 11a to junction 13 diversion route map

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