Transportation Economic Trends

Value of Transportation Infrastructure and Other Assets:

National Highway Construction Cost Index

Construction costs affect the amount that governments invest in new roads, highways, and bridges. These costs depend on the prices of many inputs, including materials like steel and asphalt, labor costs, and overhead costs. This page discusses construction costs for transportation modes for which data are available. 
2020 Year-in-Review
As measured by the National Highway Construction Cost Index (NHCCI), highway construction costs increased at a faster rate from the first quarter of 2017 to the last quarter of 2018, at 2.0 percent per quarter, than all previous quarters since 2009 when highway construction costs first began to rise after a period of decline. NHCCI reached its peak in the third quarter of 2019 and fell by almost 1.0 percent per quarter by the fourth quarter of 2020.
Highway construction costs
The NHCCI, produced by the U.S. Department of Transportation’s Federal Highway Administration, measures the average change over time in the prices paid by State transportation departments for roadway construction materials and services over time. It can be used to track price changes in highway construction.

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Recommended citation
U.S. Department of Transportation, Bureau of Transportation Statistics, Transportation Economic Trends, available at

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Bureau of Transportation Statistics
The Bureau of Transportation Statistics, part of the U.S. Department of Transportation, is the preeminent source of statistics on commercial aviation, multimodal freight activity, and transportation economics, and provides context to decision makers and the public for understanding statistics on transportation.