While improvements in water quality can literally mean life or death for fish populations, there is another facet to the story of creating vibrant, bountiful, healthy rivers. What if a fish had miles and miles of cool, clear, clean river to enjoy, but couldn’t get to it? It’s an issue faced across the Southern Appalachians as poorly designed, installed, or maintained bridges and culverts can block passage by fish, crayfish, and other aquatic life.