The highway trust fund goes broke this month:
http://www.transportation.gov/highway-trust-fund-ticker
It would cost $3.6 trillion to bring infrastructure back up to par:
http://www.wired.com/2015/01/time-fix-americas-infrastructur...
> Unfortunately, highway fund revenues have been insufficient to fully fund existing highway spending, with Congress authorizing billions of dollars in transfers from the US Treasury’s General Fund into the Highway Trust Fund to keep it solvent, including a $10.8 billion transfer last August. It has ongoing funding needs that will continue unless a more permanent solution can be found, either by raising the national gas tax (which hasn’t been increased since 1993), or some other funding measure. The Congressional Budget Office expects the Highway Trust Fund to have an annual shortfall of $15 billion.
