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1-5 National Highway System Pavement Condition

Thursday, January 5, 2017

Table Version | Excel

percent of NHS facility miles

1-5 National Highway System Pavement Condition

Note: Pavement condition is measured by the International Roughness Index (IRI) which takes a longitudinal profile of pavement roughness based on one-way facility centerline miles.

Source: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics, table HM-47, available at https://www.fhwa.dot.gov/policyinformation/statistics.cfm as of October 2016.