• The Nation’s transportation assets were valued at approximately $7.7 trillion in 2013, a 13.6 percent increase over 2010 estimates. Publicly owned infrastructure and equipment accounted for over one-half of transportation capital stock.

• Highway lane-miles increased slightly less than 1 percent between 2010 and 2013. Highway person-miles traveled and vehicle-miles traveled increased by 1.5 and 0.7 percent, respectively, over that period.

• The condition of the U.S. transportation infrastructure is improving, but additional work is needed. The percentage of structurally deficient bridges declined from 12.0 percent in 2010 to 10.5 percent in 2013.

• One impact of bridge deterioration is reduced load limits. In 2013, 11.8 percent of all bridges had reduced load limits, which caused commercial vehicle operators to use smaller trucks or take circuitous routes, increasing their costs.

• The average age of the highway light-duty vehicle fleet increased by 28 percent over the 2000 to 2013 period and stood at about 11.4 years in 2013. The average age of commercial trucks is now 14.7 years, up from 12.5 years in 2007.

• The majority of airport runways (commercial service, reliever, and select general aviation) are in good condition; only 2 percent are considered poor.

• Railroad capital expenditures totaled $13.1 billion in 2013, more than double the spending in 2000.

• The average age of inland waterway navigation locks, adjusted for the date of the most recent rehabilitation, is more than 50 years.

• There is a general lack of data on vehicle and traffic control system condition, regardless of mode, and on most aspects of intermodal connections.

FIGURE 1a  Bridge Condition by Age Group: 2013

 Table Version | Excel

FIGURE 1b  NPIAS Runway Condition: 2000 and 2013

 Table Version | Excel  

NOTE: National Plan of Integrated Airport Systems (NPIAS) identifies nearly 3,400 existing and proposed airports that are significant to national air transportation and thus eligible to receive Federal grants under the Airport Improvement Program (AIP).

SOURCE: U.S. Department of Transportation, Federal Aviation Administration, as cited in U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics (BTS), National Transportation Statistics (NTS), table 1-25, available at www.bts.gov as of July 2015.