New York City learned this lesson only after infrastructure got so bad in the 1970s that a concrete truck literally fall through an elevated highway. http://ww

New York City learned this lesson only after infrastructure got so bad in the 1970s that a concrete truck literally fall through an elevated highway. http://www.nytimes.com/1973/12/16/archives/truck-and-car-fall-as-west-side-highway-collapses.html http://www.nytimes.com/1973/12/16/archives/truck-and-car-fal...