Ice processes in culverts with two fish passage designs: a case study in southern Quebec

According to Department of Fisheries and Oceans Canada, culverts and other stream crossings must be designed to ensure fish passage. The effects of ice processes on these fish passage designs have never been assessed. This study is the first to document ice processes on two different types of fish p...

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Bibliographic Details
Published inCanadian journal of civil engineering Vol. 51; no. 2; pp. 151 - 161
Main Authors Ladouceur, Jean-Robert, Ghobrial, Tadros
Format Journal Article
LanguageEnglish
Published Ottawa NRC Research Press 01.02.2024
Canadian Science Publishing NRC Research Press
Subjects
Baffles
Culverts
Design and construction
Environmental aspects
Fish
Fish barriers
Fish ladders
Fisheries
Fishways
Ice cover
Ice formation
Icing (Meteorology)
Oceans
Rivers
Streambeds
Supercooling
Canada
Quebec Canada
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Summary:According to Department of Fisheries and Oceans Canada, culverts and other stream crossings must be designed to ensure fish passage. The effects of ice processes on these fish passage designs have never been assessed. This study is the first to document ice processes on two different types of fish passage designs (streambed simulation and baffle). The results of a 2 year field monitoring campaign showed that the culvert simulating the streambed retains a natural ice regime, i.e., both freeze-up and break-up occurred concurrently with the rest of the stream, while multiple supercooling events were recorded under a thin ice cover. As for the culvert with baffles, it was observed that the ice cover formed earlier and stayed longer in the culvert, which can create a barrier for fish transiting through them.
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ISSN:0315-1468
1208-6029
DOI:10.1139/cjce-2023-0088