fish ladder

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fish ladder

[′fish ‚lad·ər]
(civil engineering)
Contrivance that carries water around a dam through a series of stepped baffles or boxes and thus facilitates the migration of fish. Also known as fishway.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In 2013, Sally Harold at The Nature Conservancy-Connecticut was able to secure needed funding through various sources, including the DEC Bond Act, the National Fish & Wildlife Foundation's Long Island Sound Futures Fund, and the Friends of the Bay in Oyster Bay, to plan and design a new fish passage at the site.
In Alaska, engineers designing fish passage culverts are doing just that and ending up with culverts that will pass the 100-year flood flows without failing.
The $1.4 million Beaver Creek Fish Passage Improvements project was limited to a six-month schedule, owing to water levels and weather restrictions.
Fish passage is monitored by the Environment Agency on all North East rivers, as fish swim through counters at weirs.
Staff have been working with angling groups to improve fish passage on the Wear and its tributaries such as the River Gaunless, and Cong Burn near Chester-le-Street, by removing obstructions and installing fish passes.
Reconnecting the lakes will bring considerable benefits for Lake Albert, including management of exposed foreshores, reduction in salinity levels and re-establishment of fish passage between the lakes.
Bureau of Reclamation is building a fish passage project upstream from town, and Sarmo wanted to build next to that, but the $2 million cost prevented it.
The hatchery is part of a larger integrated fisheries complex that includes the Nevada Fishery Resources Office and Marble Bluff Fish Passage Facility.
It includes new sections on river flow hydraulics, fish passage, floating ice and debris, and other topics.
The river relocation/restoration involved temporary bypass piping and box culverts to handle river flows during excavation and included dam removal and river conversion to a free-flowing system with a fish passage channel, riffles, runs, and pools.
Restoration of fish passage to all the tributaries of the Sebasticook will more than double the lake habitat, producing a potential of 4.5 million alewives.
This complements an existing fish passage at the weir, allowing better and more secure access for migrating fish.