Date of Award:
5-2014
Document Type:
Dissertation
Degree Name:
Doctor of Philosophy (PhD)
Department:
Civil and Environmental Engineering
Committee Chair(s)
Blake P. Tullis
Committee
Blake P. Tullis
Committee
Mac McKee
Committee
Michael C. Johnson
Committee
Barton Smith
Committee
Gilberto Urroz
Abstract
Due to a recent increase in environmental awareness regarding fish passage through hydraulic structures, including culverts, an evaluation of passage of wild brown trout through a weir-baffled, prototype-scale culvert, was conducted under a variety of culvert slopes and discharge conditions. The influence of the fish sample population and the lengths of the individual fish on passage rates were investigated. The data showed that the fish sample size of 25 per test was sufficiently large to minimize sample size dependency. Fish behavior, including resting/staging zone locations, while traversing the culvert was observed and reported. Two preferable resting zones for the fish were noted while swimming upstream in baffled culvert.
The influence of flow rates and culvert slopes on the forward velocities and reverse velocities were evaluated. An inverse relationship was observed between fish passage success and flow rate and/or culvert slope. No fish successfully passed through the baffled culvert at the maximum discharge (85 L/s) for culvert slope of 5 and 6%. New culvert designs should provide appropriate hydraulic conditions to improve the fish upstream movements.
Checksum
7c9baacdd7af555f9cde59b373e7c87c
Recommended Citation
Khodier, Mohanad A., "Weir-Baffled Culvert Hydrodynamics Evaluation for Fish Passage Using Particle Image Velocimetry and Computational Fluid Dynamic Techniques" (2014). All Graduate Theses and Dissertations, Spring 1920 to Summer 2023. 3078.
https://digitalcommons.usu.edu/etd/3078
Included in
Copyright for this work is retained by the student. If you have any questions regarding the inclusion of this work in the Digital Commons, please email us at .