Severn Bridge Diversion Route

During the restrictions, advance warning signs are displayed and traffic diverted onto the following route:

Westbound to Chepstow:

• Use M4 Second Severn Crossing, Exit J23a (Magor), M4 eastbound, M48

Eastbound from Chepstow:

• M48 westbound, M4 J23a, use M4 Second Severn Crossing

Diversion Map