Quarterly data, not seasonally adjusted
|month||Index of Highway Construction Costs|
NOTES: The current value is compared to the value from the same period in the previous year to account for seasonality.
The NHCCI is updated quarterly and has a base period of the First Quarter of 2003. The data series began with 45 states in 2003 and currently includes 48 states; Alaska and Hawaii are excluded due to unique cost issues.
The NHCCI does not have the exact same coverage as the C30 (Value of Construction Put in Place) dataset from the Census Bureau. The C30 data only covers the value of new construction, and the NHCCI tracks materials and services purchased by states.
SOURCE: U.S. Department of Transportation, Federal Highway Administration, Office of Highway Policy Information, National Highway Construction Cost Index, available at http://www.fhwa.dot.gov/policyinformation/index.cfm as of April 2012.