The Severn Bridge, sometimes also called the Severn–Wye Bridge, is a motorway suspension bridge spanning the River Severn and River Wye between Aust, South Gloucestershire in England, and Chepstow, Monmouthshire in South East Wales, via Beachley, Gloucestershire, which is a peninsula between the two rivers. It is the original Severn road crossing between England and Wales, and took three-and-a-half years to construct at a cost of £8 million. It replaced the Aust ferry.The bridge was opened on 8 September 1966, by Queen Elizabeth II, who hailed it as the dawn of a new economic era for South Wales. For thirty years, the bridge carried the M4 motorway. The bridge was granted Grade I listed status on 26 November 1999.Upon the completion of the Second Severn Crossing, the motorway from Olveston in England to Magor in Wales was renamed the M48.