Umeda River was a city river of Sendai city. This river had become ditch for the urbanization of the basin in the short term number ten years ago. It was improved to some extent now. The authors start the investigation of the Umeda upper part of a river basin in 2006 and investigate the distribution of the small branch and the present conditions and the water. These work were aimed at getting the judgment that was necessary for the aim setting of the environmental safeguard of the Umeda upper part of a river basin.
