fish ladder

noun

: a series of pools arranged like steps by which fish can pass over a dam in going upstream

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In August, the National Oceanic and Atmospheric Administration allocated $3 million for salmon restoration, Merkley said, with another $11.5 million going to the Oregon Department of Fish and Wildlife to improve fish ladder passages on the two dams remaining on the river. —

Debra Utacia Krol, USA TODAY, 5 Nov. 2024 Two other dams upriver from the four that were removed, the Link River Dam and the Keno Dam, have fish ladders installed. —

Debra Utacia Krol, USA TODAY, 2 Sep. 2024 From the visitor center’s outdoor platform, visitors can watch the spectacle of salmon and other fish swimming up a fish ladder — steelhead and sockeye salmon in early summer and chinook and coho salmon in September. —

Ben Davidson, The Mercury News, 17 June 2024 There are now thousands of dams throughout the Mississippi River Basin, most of which lack fish ladders or other structures allowing for fish passage. —

Dac Collins, Outdoor Life, 24 Apr. 2024 See all Example Sentences for fish ladder