抄録
The relation between the cultural climate and the bridges is discussed with considering the history of urban space with the bridges over the River Nagara. The major three bridges such as Nagara, Chusetsu and Kinka are analyzed to describe their histories in terms of construction technology as well as public feelings. It is known that the construction of the bridges might be recognized to create the historical monument of the area. The relation between the bridges and the surrounding environments such as land use and traffic are mentioned as well.
