Infrastructure including roads, bridges and rail got a bit better over the last four years thanks to increased spending, says American Society of Civil Engineers.
President Obama called for billions more in infrastructure spending in his State of the Union Address. Do we need it?
Experts say critical infrastructure such as power plants, factories, pipelines and water systems are at risk from cyber attack.
The nation's water systems have entered a replacement era. California, Texas and New York need the most money with their large populations.
