In 1936 the bridge was designated an ancient monument.[12] The city council bought several of the shops and made plans for the restoration of the original façade,[2] which was completed in time for the Festival of Britain in 1951.[3] The status of the bridge as an ancient monument was replaced in 1955 with its designation as a Grade I listed building.[12] Further work was carried out in the 1960s to repair the underside soffits of all three arches.[13] More restoration of the southern street facade was needed in 1975.[5]