fish ladder

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fish ladder

n.
A series of artificial pools arranged like ascending steps, enabling migrating fish to swim upstream around a dam or other obstruction.

fish ladder

n
(Fishing) a row of ascending pools or weirs connected by short falls to allow fish to pass barrages or dams

fish′ lad`der


n.
a series of ascending pools constructed to enable salmon or other fish to swim upstream around or over a dam.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.fish ladder - a series of ascending pools providing a passage for salmon to swim upstream past a damfish ladder - a series of ascending pools providing a passage for salmon to swim upstream past a dam
passage - a way through or along which someone or something may pass
References in periodicals archive ?
Another of my thoughts would be to let the Army use it as an exercise, saving pounds 24,000 which could be spent on improvements down at the white water course, and the much needed fish passage at the Tees Barrage.
Tenders are invited for structure will be cast-in-place concrete and allow controlled fish passage above the skamania hatchery.
Over the past 20 years, the work has included adding spawning gravel beds, putting boulders and logs in the river to aerate the water and provide resting zones for fish, replacing culverts and bridges to improve fish passage, and planting trees to stabilize banks and cool the water.
Simon Rudman, structures team manager for Northumberland County Council, said: "The council is always willing to assist in reducing the number of obstructions to fish passage on our rivers.
Officers at the Environment Agency and British Waterways are concerned over the results of the pilot study into fish passage at the Tees Barrage.
Completion of the Mendota Pool Bypass will allow for fish passage around Mendota Dam, the largest fish passage impediment in the SJRRP area.
Part of EWEB's fish passage plan has been to build a $45 million "screen" system to prevent salmon coming downstream into the Trail Bridge Dam's reservoir from getting sucked into the dam's turbines and killed.
Army Corps of Engineers (Corps) and Bureau of Reclamation released the Final Environmental Impact Statement (EIS) today for the Lower Yellowstone Intake Diversion Dam Fish Passage Project located 70-miles upstream from the confluence of the Yellowstone and Missouri Rivers near Glendive, Montana.
The state is seeking public comment on a proposal to waive a state requirement to provide fish passage at five locations associated with the Highway 20 realignment.