National Highways lists planned daytime traffic management for the M48 Severn Bridge on Thursday 6 August 2026. From 06:00 to 20:00, lane 2 is scheduled to be closed in both directions and a 30mph speed limit is due to apply. If this crossing forms part of your morning journey, a calm plan made before you leave can reduce rushed decisions when lanes narrow and traffic bunches.
Planned works can change, so check the National Highways Severn bridges update and a live traffic service shortly before setting off. This article is a practical preparation guide, not a substitute for live road signs or official instructions.
Understand the morning layout before you reach the bridge
A lane closure in each direction does not necessarily mean the crossing is shut, but it reduces available road space. Expect traffic to merge earlier, speeds to fall and gaps between vehicles to become more valuable. Join the correct lane in good time, follow temporary signs and avoid a last-second change near cones or taper points.
The temporary 30mph limit matters even when the road ahead appears clear. It gives drivers more time to read the layout and protects people working close to live traffic. Settle into a steady speed, leave a generous gap and resist following a faster vehicle through the works. Keep both hands ready on the wheel and scan well beyond the car in front.
Complete a five-minute departure check
Early light over the estuary can create glare and reflections. Clean the windscreen inside and out, top up washer fluid and confirm that wipers clear without smearing. Put sunglasses within reach, but never where they can slide around the dashboard. Check fuel or battery range and allow a sensible reserve in case slower traffic adds time to the journey.
Open your preferred navigation app before moving, review the current crossing status and note one safe alternative. The M4 Prince of Wales Bridge may be an option for some routes, but only use it when live guidance and your destination make that choice sensible. Changing route late can add pressure, so make the decision while parked.
Tell someone your expected arrival time if the journey is important, and build in a modest buffer. A ten-minute earlier departure is usually less stressful than trying to recover ten minutes while approaching temporary traffic management.
Keep useful equipment accessible, not loose
A tidy car is part of safe preparation. Secure luggage and loose objects so they cannot move during braking. Store a high-visibility vest where you can reach it without unloading the boot. Keep a charged phone and cable available, but use a fixed mount and hands-free controls rather than handling the phone while driving.
If you carry a warning triangle, remember that it should never be placed on a motorway. On other roads, use it only when it is legal and genuinely safe to do so. An escape tool with a seatbelt cutter belongs inside the passenger compartment, firmly secured and reachable by an adult, not buried under luggage.
JUFO recommendation: 3-in-1 Roadside Breakdown Kit — £17.95
For motorway preparation, the JUFO 3-in-1 Roadside Breakdown Kit combines practical visibility and emergency items in one compact set. Keep it secured in a consistent place and check its contents before a longer journey. It supports preparation; it does not replace breakdown cover, official advice or safe decision-making.
If traffic slows or the plan changes
Stay in lane unless signs direct you otherwise, maintain a safe gap and avoid using the hard shoulder. If official signs close the bridge or divert traffic, follow them even if your navigation app suggests a different route. Never stop to photograph conditions or rearrange equipment on the carriageway.
If your vehicle develops a problem, prioritise getting to a place of relative safety and follow National Highways guidance. On a motorway, do not attempt a roadside repair that exposes you to live traffic. Contact the appropriate breakdown or emergency service and give a precise location.
A calmer crossing starts before the engine
Thursday morning's planned lane closures are manageable when drivers arrive informed, leave space and respect the temporary limit. Check the live status, prepare the car while parked, secure essential equipment and give the journey enough time. Those simple choices create a safer, less hurried start on both sides of the Severn.
