Gwent police is advising motorists and members of the public not involved in the Hoggin the Bridge event on Sunday, October 18, to avoid these areas where long traffic delays and heavy traffic congestion is expected.
The main congestion will be between 10am and 2pm.
M48 Old Severn Bridge.
M48 Westbound to junction 23A at Magor
B4245 through Magor to Caldicot.
A48 from Parkwall to Chepstow.
Chepstow Town centre
A466 through Chepstow.
Photograph © Andy Prosser @ Welsh Icons.