The state of America's infrastructure gets highest-ever marks, but key areas lacking

The American Society of Civil Engineers (ASCE) on Tuesday released its latest report on the health of U.S. infrastructure, which received its highest-ever overall grade, though several key areas received relatively poor marks.

ASCE's Report Card for America's Infrastructure, which is released every four years grading infrastructure using an A-to-F school report card format, gave U.S. infrastructure a C on an overall basis – an improvement from the C- grade it issued four years ago as about...