Generalized Study of Hydraulics of Culvert Fishways
Publication: Journal of Hydraulic Engineering
Volume 128, Issue 11
Abstract
This study presents a comprehensive analysis of the experimental observations, collected previously in an extended project on culvert fishways with offset baffle, slotted weir baffle, weir baffle, spoiler baffle, Alberta fishweir, and fishbaffle systems. It has been found that a general correlation exists between the dimensionless discharge and the relative depth of flow for each value of the relative baffle height Furthermore, for relative baffle heights in the practical range of 0.1–0.15, longitudinal baffle spacing should be limited to a maximum of D. The velocity field in the centerplane of each of these culvert fishways was analyzed and was found to be similar with the similarity profiles having different shapes for different baffle systems. A general correlation was also found for the normalized velocity scale. Even though most of the baffle systems worked reasonably well in the range of parameters recommended, the weir and slotted weir baffle systems are simpler yet equally effective. The results presented in this paper will hopefully facilitate the design and building of successful culvert fishways.
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References
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 128 • Issue 11 • November 2002
Pages: 1018 - 1022
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: May 14, 2001
Accepted: May 30, 2002
Published online: Oct 15, 2002
Published in print: Nov 2002
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