The environmental issue has put a new spin on Sabo facility planning at all level including soundscape. In this point of view, the soundscape of fishway of Sabo facilities is investigated for several types with power spectrum analysis and time fluctuation analysis of power. According to recent soundscape studies, the 1/
ff power spectra and the big time fluctuation are one of important indexes of blunt sound. In this study, the soundscapes of some Sabo facilities and of natural torrent are shown for the comparison with the fishways. The guide wall type and slope type have bland 1/
f sound, but former has less time fluctuation like other concrete pool type fishways, although it is as the same as one of natural torrents or falls.
Consequently slope type fishways constructed with stones have the blunt soundscape both in the time fluctuation and in the spectrum characteristic.
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