tag | dams

 In southwestern Pennsylvania, eight locks and dams that for decades helped barges move goods along the Allegheny, Monongahela and Ohio rivers will in a few years also generate enough power for 75,000 homes.

Smallmouth bass, American shad and eel face different challenges, but one thing is certain: their numbers are not what they used to be, and that is a reflection of the health of the watershed.