The 2015 Bottom Line report reveals that the cumulative investment needed to meet today's need just for highways and bridges – independent of future growth prospects – tops $740 billion over 6 years. With annual spending at approximately $88.3 billion, the need is a huge number and it is growing.
Highways and Bridges An annual capital investment of at least $120 billion for highways and bridges between 2015 and 2020 is necessary to improve the condition and performance of the system. That assumes a rate of travel growth of 1.0 percent per year in vehicle miles of travel, which has been AASHTO's sustainability projection and which represents the likely impacts of both population growth and economic recovery. Meanwhile annual capital spending at all levels of government – federal, state and local – is just $88.3 billion.
Transit An annual investment of $43 billion for public transportation is necessary to improve system performance and condition, given an expected 2.4 percent annual growth in transit passenger miles of travel. If transit ridership growth rises to 3.5 percent, the level that would double transit passenger miles of travel in 20 years, investment in public transportation capital would have to increase to $56 billion per year. Meanwhile, annual capital spending on transit is just $17.1 billion.
Additional items from the report: At a Glance