Moderate
Both directions 🛑 now
A1 both directions Black Cat roundabout - North quadrant closure
Overall Scheme Details: A1 both directions
Black Cat roundabout - North quadrant closure for bypass construction on behalf of National Highways
✅ until 23:59 Fri 30 Apr
Severe
Starting soon
From 21:00 on 18 October 2026 to 06:00 on 19 October 2026
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 19 October 2026
Severe
Starting soon
There will be one of two lanes closed
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 19 October 2026
Severe
Southbound Starting soon
The A1 southbound exit slip to the A47
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 05:00 and 05:00 on 26 October 2026
Severe
Southbound Starting soon
The A1 southbound between junctions with the A43 and A47
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 05:00 and 05:00 on 26 October 2026
Severe
Northbound Starting soon
The A1 northbound entry slip from the A47
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 05:00 and 05:00 on 25 October 2026
Severe
Northbound Starting soon
The A1 northbound exit slip to the A141
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 05:00 and 05:00 on 21 October 2026
Severe
Northbound Starting soon 🌙 tonight
A1 northbound Wansford to Wothorpe carriageway closure
Overall Scheme Details: A1 northbound
Wansford to Wothorpe - carriageway closure, lane closure, speed restrictions and
Diversion: diversion route for carriageway - reconstruction/renewal on behalf of National Highways
✅ until 06:00 Tue 13 Oct
Severe
Northbound Starting soon 🌙 tonight
A1 Jct 73 to Jct 74 northbound carriageway closure
Overall Scheme Details: A1 northbound and southbound Jct 71 to Jct 75
carriageway closure for drainage works
✅ until 06:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Barrowby exit slip road closure
Overall Scheme Details: A1 northbound Stamford to Barrowby
Carriageway, slip road and lane closure, plus 24/7 layby closures. due to maintenance works
Diversion: Diversion via National Highways network and local authority network
✅ until 06:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Harlaxton entry slip road closure
Overall Scheme Details: A1 northbound Stamford to Barrowby
Carriageway, slip road and lane closure, plus 24/7 layby closures. due to maintenance works
Diversion: Diversion via National Highways network and local authority network
✅ until 06:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 Stannington south northbound exit slip road closure (2)
Overall Scheme Details: A1 northbound and southbound Seaton Burn to Morpeth
Carriageway closure with 24hr layby closures for carriageway resurfacing
✅ until 06:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 Blagdon northbound entry slip road closure (2)
Overall Scheme Details: A1 northbound and southbound Seaton Burn to Morpeth
Carriageway closure with 24hr layby closures for carriageway resurfacing
✅ until 06:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 Seaton Burn northbound entry slip road closure (1+2)
Overall Scheme Details: A1 northbound and southbound Seaton Burn to Morpeth
Carriageway closure with 24hr layby closures for carriageway resurfacing
✅ until 06:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 Stannington northbound exit slip road closure (2)
Overall Scheme Details: A1 northbound and southbound Seaton Burn to Morpeth
Carriageway closure with 24hr layby closures for carriageway resurfacing
✅ until 06:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 Jct 73 northbound entry slip road closure
Overall Scheme Details: A1 northbound and southbound Jct 71 to Jct 75
carriageway closure for drainage works
✅ until 06:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Brampton Hut exit slip road closure
Overall Scheme Details: A1 both directions
Brampton to Alconbury - carriageway closure and
Diversion: diversion route for drainage on behalf of National Highways
✅ until 05:00 Tue 13 Oct
Moderate
Southbound Starting soon 🌙 tonight
A1 southbound Alconbury entry slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Alconbury exit slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound A428 Wyboston entry slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Tue 13 Oct
Moderate
Southbound Starting soon 🌙 tonight
A1 southbound B1514 Brampton exit slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Tue 13 Oct
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound B1514 Brampton entry slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Tue 13 Oct
Moderate
Southbound Starting soon 🌙 tonight
A1 southbound A428 Wyboston exit slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Tue 13 Oct
Moderate
Southbound Starting soon 🌙 tomorrow night
A1 Jct 66 southbound entry slip road closure
Overall Scheme Details: A1 northbound and southbound Jct 65 to Jct 68
Carriageway closure for horticulture works
✅ until 06:00 Wed 14 Oct
Moderate
Northbound Starting soon 🌙 tomorrow night
A1 northbound A428 Wyboston exit slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Wed 14 Oct
Moderate
Southbound Starting soon 🌙 tomorrow night
A1 southbound A428 Wyboston entry slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Wed 14 Oct
Moderate
Southbound Starting soon 🌙 tomorrow night
A1 southbound B1514 Brampton entry slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Wed 14 Oct
Moderate
Northbound Starting soon 🌙 tomorrow night
A1 northbound B1514 Brampton exit slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Wed 14 Oct
Moderate
Southbound Starting soon 🌙 Wed 14 Oct
A1 southbound Hail Weston exit slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Thu 15 Oct
Moderate
Northbound Starting soon 🌙 Wed 14 Oct
A1 northbound Tempsford entry slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Thu 15 Oct
Moderate
Northbound Starting soon 🌙 Wed 14 Oct
A1 northbound Hail Weston entry slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Thu 15 Oct
Moderate
Northbound Starting soon 🌙 Wed 14 Oct
A1 northbound Tempsford exit slip road closure
Overall Scheme Details: A1 both directions
Alconbury to Baldock - exit and entry slip road closures, and
Diversion: diversion routes for horticulture (cutting and planting) on behalf of National Highways
✅ until 05:00 Thu 15 Oct
Minor
Southbound Starting soon 🌙 tomorrow night
A1 southbound Colsterworth Layby clsoure
Overall Scheme Details: A1 southbound Colsterworth.
Layby and lane closure for works by BT.
✅ until 06:00 Wed 14 Oct
❓ A1 roadworks — Frequently Asked Questions
Are there roadworks on the A1 right now?
Yes — National Highways is reporting 1 set of roadworks running on the A1.
Is the A1 closed tonight?
32 closures are scheduled on the A1 in the next 72 hours. Each one is listed above with its window and diversion.
When are A1 roadworks usually carried out?
Most National Highways lane closures on the A1 run overnight and are lifted before the morning peak (07:00–09:00). Full carriageway closures are usually weekend nights, with a signed diversion.
🛣️ Data from National Highways ·
All UK roadworks ·
Overnight closures ·
A1 live traffic
Roadworks change at short notice. Always follow signs and signals on the road.