The fate of medieval English bridges since 1770: demolition, survival and preservation

Abstract

Until 1770 England had a huge road network making use of medieval bridges. Now, only about 100 major medieval bridges survive. Although no accurate survey has yet been undertaken, it is estimated that over 80% of the major medieval bridges were demolished during the period 1770–1830. The paper looks at the reasons for this widespread demolition programme. The pattern of demolition was varied: over some rivers most medieval bridges were replaced; over others, many remain. Apart from a poor state of repair, the main reason for demolition was that they were inadequate for new wheeled transport. However, many bridges could have been repaired and widened, as some indeed were. Many were demolished because of a shift in attitudes – a desire for modern, fashionable structures. Only in the 1870s did the option to preserve and restore old bridges start to gain popularity and few ancient bridges have been demolished since that time. This study of the post-medieval history of ancient bridges provides valuable insights and background knowledge for civil engineers dealing with old bridges.