The first motorway suspension bridge was inaugurated on 8 September 1966, and the newer cable-stayed bridge, a few miles to the south, was inaugurated on 5 June 1996. The Prince of Wales Bridge (Second Severn Crossing) marks the upper limit of the Severn Estuary. From 1966 to 1996, the bridge carried the M4 motorway. On completion of the Second Severn crossing the motorway from Aust on the English side to Chepstow was renamed the M48. The Second Severn Crossing was officially renamed the Prince of Wales Bridge on 2 July 2018.