Results of Laboratory and Field Research on New Concepts in Weir and Pool Fishways. Final Project Report Part 2 of 4




Bonneville Dam, design, field tests, fish hydraulics, fish passage, fish ladder, fishway design, hydraulics, laboratory tests, mechanics, pool and weir, pool fishways, pool, slot and weir, upstream migration, weir, hydraulic conditions


Summary: A comprehensive review of fishway design practice led to a new design concepts that had previously been untested. This concept was based on the observation that fish can be stimulated to leap when presented with certain hydraulic conditions. A laboratory test program was conducted to develop this concept into a new fishway configuration. Field testing revealed that components of the new design improved fish passage. Verification of the initial premise that fish can be stimulated to leap needs further study.

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