Maryland spent $12 million on a fish lift in 1991 to move American shad past Conowingo Dam; decades later, annual runs remained far below the 2 million-fish target

Discover how Maryland's $12 million investment in a fish lift at Conowingo Dam has led to disappointing results in helping American shad migrate, as technology struggles to overcome natural barriers 30 years on.

Raccontata daeconomictimes.indiatimes.com