BTS Data, Surveys, and Methods National Transportation Atlas DatabaseAirport SnapshotsRural AirportsPort Performance Freight Statistics Program Annual Report to Congress BTS Publications Infrastructure extent and condition chapter in the Transportation Statistics Annual ReportTechnical Briefing: Investment in Transportation AssetsNational Transportation StatisticsState Transportation StatisticsMore BTS PublicationsBrowse Infrastructure in the National Transportation Library Related Resources Highway Performance Monitoring System (HPMS)National Transit DatabaseNational Bridge Inventory Database2015 Status of the Nation's Highways, Bridges, and Transit: Conditions & PerformanceFederal Railroad Administration Maps - Geographic Information SystemPipeline Mileage and Facilities Information Gallery Annual Average Daily Traffic on the National Highway System, 2012 Bridge Condition by Age Group: 2015 Class I Railroad System Mileage and Ton-miles of Freight: 1960, 1965, 1970-2015
