Definitions for "Fish Ladder"
Keywords:  dam, upstream, upriver, weir, migrate
A structure made up of a series of shallow ‘stepsâ€(tm). Water flows over the steps, which allows fish to swim up them. Used to allow fish to move past dams and other structures.
A series of shallow steps down which water is allowed to flow; designed to permit salmon to circumvent artificial barriers such as power dams as the salmon swim upstream to spawn.
a series of ascending pools providing a passage for salmon to swim upstream past a dam
some form of structure which provides fish passage past a stream barrier.
Keywords:  see
See Fishway.