History and present perspective of Instream Flood Mitigation Dams

Abstract

Worldwide dams designed only for the purpose of flood mitigation have different definitions and classifications. In USA they are called Dry dam, in Austria flood retention basins, (Hochwasserruckhaltebecken in German), in Japan in stream flood controlam (Ryusuigata dam, Japanese), others Flood Mitigation Dam (FMD). It is one of good solutions in dam engineering for sustainable management of reservoirs, downstream river environment, and sediment transport. This paper summarizes history and present perspectives of these flood mitigation dams.