The purpose of this study is to clarify the evaluation structure of inhabitants for present conditions and improvement plans of a river. We studied the relation of recreational uses, evaluations of river environment, interest in river improvement and preference for river improvement. In the three areas; the upper, middle and lower reaches of the Seno River running through the East of Hiroshima City, we carried out the survey using questionnaires with the six pictures of present conditions and the ten kind of improvement plans for the river. As the results, we showed that the inhabitants having high evaluation for existing river environment prefer artificial improvement plans and having low evaluation prefer natural conditions.
