The lower half of a fish ladder at Bonneville Lock & Dam in Cascade Locks remains unchanged as upgrades focus on the upper section. A new $8 million project at the Bonneville Lock & Dam aims to make ...

The alewife spawning season that begins this month across Long Island will be helped by several fish passages constructed over the past two years to provide the feeder fish access to spawning waters ...

Fish ladders were designed to help migrating species like salmon bypass dams but do they actually work? In this video, we explore how fish ladders function, why many fail, and the surprising ...

Named after an engineer who played a key role in their development, the Chittenden Locks are the busiest in the country, with as many as 50,000 vessels passing through each year. Locals typically call ...