Rock ramp fishway

Definition

Fish passable structures, bypass channels or channel-type fishways where either the entire channel or only the bottom has a very rough surface. Rock ramp fishways can be designed without friction blocks or with perturbation boulders or pool structures.

Source

translated from "DWA-M 509: Fischaufstiegsanlagen und fischpassierbare Bauwerke – Gestaltung, Bemessung, Qualitätssicherung (Mai 2014)"

Additional links

Guideline Upstream Fishways on German Federal Waterways (AH FAA), Bundesanstalt für Wasserbau (BAW) und Bundesanstalt für Gewässerkunde (BfG), Version 2.0, 26/06/2015 (retrieved 10.05.2017)

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Overview