I am working on a series of lock and dam structures, where as a mitigation tool, managers release water from an upstream reservoir to supplement the natural flows in order to submerge the dam for migratory fish to traverse over top. This is not common and I have not found anything in the literature that discusses this. There are plenty of examples of environmental flows prescribed for downstream ecological effects but nothing like I describe above. If you know of any studies please point me to them. Also, if there are any studies that show passage of fish during natural flows that inundate a low-head dam, I would be interested in those as well. Thanks in advance.
Environmental flows for low-head dams aim to mimic natural river flow patterns to facilitate fish passage. Techniques include pulsed flow releases, fish passage structures like ladders or ramps, and monitoring for adaptive management. These strategies help restore fish migration routes and improve river health by addressing barriers created by dams. Collaboration among stakeholders is crucial for effective implementation.
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