NEW YORK (CBSNewYork) — New York City’s infrastructure is crumbling and could wreak as much havoc as the next Superstorm Sandy, a new report says.

Among the alarming facts in the report by the Center for an Urban Future, a public-policy think tank, is that 47 bridges in the city are “fracture critical,” meaning that if just one joint or beam fails, an entire span could collapse.

The report calls 43 percent of roads in the city substandard. It also notes that the average sewer main is 84 years old, and 1,000 miles of water mains date back a century.