You can do this by building fish ladders. Fish ladders look like a series of small waterfalls alongside a dam. Salmon swim upstream, and they "jump" from one waterfall to the next, until they ...

GLADWIN COUNTY, Mich. (WJRT) - The relatively small Trout Lake Dam in Gladwin County could be removed soon due to safety concerns and costly repairs needed to leave it in place. The dam owned by ...