View source for Rock ramp fishway

{{GlossaryEntry
|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)" 
|links=[http://vzb.baw.de/publikationen/merkblaetter/1/Guideline_Upstream_Fishways_Version2.pdf 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)
|name_de=Fischpassierbares Raugerinne
}}