President Donald Trump’s focus on infrastructure this week highlights a long-festering problem in the U.S. heartland: crumbling river systems that can make it more costly to transport crops. The U.S. river system ferries nearly three-quarters of export-bound U.S. grain to ocean ports that ship U.S. goods around the world. But most locks and dams, which allow grain-laden river barges to move between higher elevations and lower-lying...

Source: Wall Street Journal June 07, 2017 16:59 UTC