Abstract
In 1920, many hisotrical bridges faced a threat of demolition and some conservationists and organisations acted to conserve them. This paper aimed to describe a discussion devfelopment of a historical bridge conservation, the Old Waterloo Bridge in the United Kingdom, between 1924 and 1937 in detail and to realise features of discussion of the day in the United Kingdom. The findings of this study can be London County Council, which was owner or the bridge, changed from their demolition policy of the bridge to conservation three times by conservationists protest.