Dive summary:

• Money in two key federal accounts for infrastructure construction – the Highway Trust Fund and the transportation fund – are not bringing in enough revenue to be able to meet all their needs after 2014, according to a Congressional Budget Office report.
• The report, issued twice a year, says in the latest version that examiners foresee a shortfall between obligations already in place and the balance in the funds.
• The estimate did not take into account any money that the MAP-21 program might shift away from the Highway Trust Fund.

From the article:

While the HTF is not directly subject to sequestration on March 1, the general fund revenue that MAP-21 provided for the HTF will be reduced by the sequester. ...