Moderate
Northbound
The A1 northbound between junctions with the A606 and A151
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 23:59 and 23:59 on 27 September 2026
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
Minor
[A1] WATFORD WAY (NW4 ,NW7 ) (Barnet)
🔨 Roadworks
✅ Expected to clear by 2026-09-25 16:30:00
Minor
Northbound 🛑 now
A1 northbound Woolfox Layby 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 07:00 Sat 26 Sep
Severe
Southbound Starting soon
The A1 southbound between junctions with the A43 and A47
🔨 Roadworks
🚦 1 of 2 lanes closed
Severe
Southbound Starting soon
The A1 southbound between junctions with the A6075 and A46
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 September 2026
Severe
Northbound Starting soon
The A1 northbound between junctions with the A46 and A57
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 25 September 2026
Severe
Northbound Starting soon
The A1 northbound between junctions with the A46 and A638
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 24 September 2026
Severe
Southbound Starting soon
The A1 southbound between junctions with the A141 and A1M
🔨 Roadworks
🚦 1 of 3 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 September 2026
Severe
Northbound Starting soon
The A1(M) northbound between the A1 and junction J14
🔨 Roadworks
🚦 1 of 3 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 24 September 2026
Severe
Northbound Starting soon
The A1 northbound at the junction with the A141
🔨 Roadworks
🚦 1 of 3 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 24 September 2026
Severe
Northbound Starting soon
The A1 northbound between junctions with the A141 and A428
🔨 Roadworks
🚦 1 of 3 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 24 September 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 06:00 and 06:00 on 24 September 2026
Severe
Northbound Starting soon
The A1(M) northbound between junctions J42 and J44
🔨 Roadworks
🚦 1 of 3 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 23 September 2026
Severe
Southbound Starting soon
The A1(M) southbound between junctions J44 and J42
🔨 Roadworks
🚦 1 of 3 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 September 2026
Severe
Southbound Starting soon
The A1(M) southbound at junction J44
🔨 Roadworks
🚦 1 of 3 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 September 2026
Severe
Southbound Starting soon
The A1(M) southbound entry slip at junction J44
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 September 2026
Severe
Northbound Starting soon 🌙 tonight
A1 northbound Stamford to Harlaxton carriageway 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 07:00 Wed 23 Sep
Severe
Northbound Starting soon 🌙 tonight
A1 Seaton Burn to Shotton northbound carriageway closure (1)
Overall Scheme Details: A1 northbound and southbound Seaton Burn to Morpeth
Carriageway closure with 24hr layby closures for carriageway resurfacing
✅ until 07:00 Wed 23 Sep
Severe
Northbound Starting soon 🌙 tonight
A1 northbound Black Cat Roundabout to Wyboston carriageway closure
Overall Scheme Details: A1 / A421 both directions
Biggleswade to St Neots - carriageway closures, lane closures, narrow lanes, permanent layby closures and
Diversion: diversion routes for construction - bypass/new on behalf of National Highways
✅ until 06:00 Wed 23 Sep
Severe
Northbound Starting soon 🌙 tonight
A1 northbound Tempsford to Black Cat Roundabout carriageway closure
Overall Scheme Details: A1 / A421 both directions
Biggleswade to St Neots - carriageway closures, lane closures, narrow lanes, permanent layby closures and
Diversion: diversion routes for construction - bypass/new on behalf of National Highways
✅ until 06:00 Wed 23 Sep
Severe
Southbound Starting soon 🌙 tonight
A1 southbound Buckden to Wyboston carriageway closure
Overall Scheme Details: A1 southbound
Buckden Roundabout to Wyboston - carriageway closure, lane closure and
Diversion: diversion routes due to carriageway - reconstruction/renewal works on behalf of Ringway
✅ until 06:00 Wed 23 Sep
Severe
Northbound Starting soon 🌙 Thu 24 Sep
A1 northbound New Lane to London Road carriageway closure
Overall Scheme Details: A1 both directions
A47 Junction to Stibbington - carriageway closure for drainage on behalf of National Highways
✅ until 06:00 Fri 25 Sep
Moderate
Starting soon
From 20:00 on 22 September 2026 to 06:00 on 23 September 2026
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 23 September 2026
Moderate
Starting soon
From 20:00 on 25 September 2026 to 06:00 on 26 September 2026
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 September 2026
Moderate
Starting soon
From 20:00 on 23 September 2026 to 06:00 on 24 September 2026
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 24 September 2026
Moderate
Starting soon
From 20:00 on 24 September 2026 to 06:00 on 25 September 2026
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 25 September 2026
Moderate
Southbound Starting soon
The A1 southbound exit slip to the A141
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 25 September 2026
Moderate
Starting soon
The hard shoulder and lane one will be closed
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 September 2026
Moderate
Northbound Starting soon
The A1 northbound entry slip from the A141
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 25 September 2026
Moderate
Southbound Starting soon
The A1 southbound entry slip from the A141
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 24 September 2026
Moderate
Northbound Starting soon
The A1(M) northbound entry slip at junction J42
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 24 September 2026
Moderate
Southbound Starting soon 🌙 tonight
A1 southbound Wansford entry slip road closure
Overall Scheme Details: A1 both directions
A47 Junction to Stibbington - carriageway closure for drainage on behalf of National Highways
✅ until 06:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Empingham 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Casterton 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Bloody Oaks 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Bloody Oaks 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Stretton 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Stretton 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound South Witham 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound South Witham 2 way 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound South Witham 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Colsterworth 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Woolthorpe 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Woolthorpe 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Little Ponton 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Spittlegate 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Spittlegate 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 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tonight
A1 northbound Harlaxton 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 07:00 Wed 23 Sep
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 07:00 Wed 23 Sep
Moderate
Southbound Starting soon 🌙 tonight
A1 Alnwick Interchange Southbound Entry and Exit Slip Road Closure
Overall Scheme Details: A1 Southbound Alnwick Interchange
Carriageway Closure for White Lining Works
✅ until 07:00 Wed 23 Sep
Moderate
Northbound Starting soon 🌙 tomorrow night
A1 northbound Brampton Hut exit slip road closure
Overall Scheme Details: A14 both directions
Jct 31 to Jct 21 - lane closures and carriageway closures for horticulture (cutting and planting) on behalf of National Highways
✅ until 07:00 Thu 24 Sep
Moderate
Southbound Starting soon 🌙 tomorrow night
A1 southbound Brampton Hut entry slip road closure
Overall Scheme Details: A14 both directions
Jct 31 to Jct 21 - lane closures and carriageway closures for horticulture (cutting and planting) on behalf of National Highways
✅ until 07:00 Thu 24 Sep
Moderate
Southbound Starting soon 🌙 tomorrow night
A1 southbound Markham Moor exit slip road closure
Overall Scheme Details: A1 southbound Markham Moor
Slip road and lane closure due to maintenance works
Diversion: Diversion via National Highways network and local authority network
✅ until 06:00 Thu 24 Sep
Moderate
Northbound Starting soon 🌙 tomorrow night
A1 northbound Little Paxton exit slip road closure
Overall Scheme Details: A1 northbound
Little Paxton to Southoe - carriageway closure for drainage on behalf of National Highways
✅ until 06:00 Thu 24 Sep
Moderate
Northbound Starting soon 🌙 tomorrow night
A1 northbound Little Paxton entry slip road closure
Overall Scheme Details: A1 northbound
Little Paxton to Southoe - carriageway closure for drainage on behalf of National Highways
✅ until 06:00 Thu 24 Sep
Moderate
Southbound Starting soon 🌙 Thu 24 Sep
A1 southbound Brampton Hut exit slip road closure
Overall Scheme Details: A14 both directions
Jct 31 to Jct 21 - lane closures and carriageway closures for horticulture (cutting and planting) on behalf of National Highways
✅ until 07:00 Fri 25 Sep
Moderate
Northbound Starting soon 🌙 Thu 24 Sep
A1 northbound Brampton Hut entry slip road closure
Overall Scheme Details: A14 both directions
Jct 31 to Jct 21 - lane closures and carriageway closures for horticulture (cutting and planting) on behalf of National Highways
✅ until 07:00 Fri 25 Sep
Minor
Northbound Starting soon
The A1(M) northbound between junctions J58 and J59
🔨 Roadworks
❓ A1 roadworks — Frequently Asked Questions
Are there roadworks on the A1 right now?
Yes — National Highways is reporting 4 sets of roadworks running on the A1.
Is the A1 closed tonight?
55 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.