Moderate
Northbound 🛑 now
M3 northbound Jct 9 entry slip road closure
Overall Scheme Details: M3 and A34 both directions Jct 9.
Narrow lanes and 24/7 lane closure for major improvement work.
✅ until 06:00 Mon 1 Nov
Severe
Starting soon
From 21:00 on 23 October 2026 to 06:00 on 26 October 2026
🔨 Roadworks
🚦 1 of 1 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 October 2026
Severe
Eastbound Starting soon
The M3 eastbound at junction J9
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 October 2026
Severe
Eastbound Starting soon
The M3 eastbound between junctions J9 and J7
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 October 2026
Severe
Westbound Starting soon
The M3 westbound between junctions J8 and J9
🔨 Roadworks
🚦 1 of 2 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 October 2026
Severe
Eastbound Starting soon
The M3 eastbound between junctions J10 and J9
🔨 Roadworks
🚦 1 of 4 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 26 October 2026
Severe
Eastbound Starting soon
The M3 eastbound between junctions J4 and J3
🔨 Roadworks
🚦 1 of 4 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 18 October 2026
Severe
Eastbound Starting soon
The M3 eastbound between junctions J4A and J4
🔨 Roadworks
🚦 1 of 4 lanes closed ✅ The event is expected to clear between 06:00 and 06:00 on 18 October 2026
Severe
Northbound Starting soon 🌙 tonight
M3 northbound Jct 13 to Jct 12 carriageway closure
Overall Scheme Details: M3 both directions Jct 7 to Jct 13
carriageway closure for carriageway - reconstruction/renewal
✅ until 06:00 Tue 13 Oct
Severe
Northbound Starting soon 🌙 Wed 14 Oct
M3 northbound Jct 12 to Jct 11 carriageway closure
Overall Scheme Details: M3 both directions Jct 7 to Jct 13
carriageway closure for carriageway - reconstruction/renewal
✅ until 06:00 Thu 15 Oct
Moderate
Southbound Starting soon 🌙 tomorrow night
M3 southbound Jct 7 entry slip road closure
Overall Scheme Details: M3 southbound Jct 7.
Slip road and lane closures for maintenance work.
✅ until 06:00 Wed 14 Oct
Moderate
Southbound Starting soon 🌙 tomorrow night
M3 southbound Jct 7 exit slip road closure
Overall Scheme Details: M3 southbound Jct 7.
Slip road and lane closures for maintenance work.
✅ until 06:00 Wed 14 Oct
Moderate
Northbound Starting soon 🌙 Wed 14 Oct
M3 northbound Jct 6 entry slip road closure (including Black Dam southbound link road)
Overall Scheme Details: M3 northbound Jct 6 - slip road and lane closure for white lining/road markings
✅ until 06:00 Thu 15 Oct
Moderate
Southbound Starting soon 🌙 Wed 14 Oct
M3 southbound Jct 4 entry slip road closure
Overall Scheme Details: M3 southbound Jct 4 - slip road and lane closure for maintenance work.
✅ until 06:00 Thu 15 Oct
Moderate
Southbound Starting soon 🌙 Wed 14 Oct
M3 southbound Jct 4 exit slip road closure
Overall Scheme Details: M3 southbound Jct 4 - slip road and lane closure for maintenance work.
✅ until 06:00 Thu 15 Oct
❓ M3 roadworks — Frequently Asked Questions
Are there roadworks on the M3 right now?
Yes — National Highways is reporting 1 set of roadworks running on the M3.
Is the M3 closed tonight?
14 closures are scheduled on the M3 in the next 72 hours. Each one is listed above with its window and diversion.
When are M3 roadworks usually carried out?
Most National Highways lane closures on the M3 run overnight and are lifted before the morning peak (07:00–09:30). Full carriageway closures are usually weekend nights, with a signed diversion.
🛣️ Data from National Highways ·
All UK roadworks ·
Overnight closures ·
M3 live traffic
Roadworks change at short notice. Always follow signs and signals on the road.