Roads and bridges | Total highway, road and street lane miles: 160,727 (2009)*; miles of tolled roadway: 56 (2009); bridges: 13,522 (2010)*; toll bridges and tunnels: 4, plus 1 shared with Maryland (2009) |
Transit | Trips per year (all transit modes): Approximately 78.1 million (2008) |
Rail | Freight rail route-miles: 3,205 (2008) |
Aviation | Airports (total): 66; public-use: 66; state-owned: 0 (2008) |
Marine | Port traffic per year (20-foot equivalent units): 1,421,633 (2009); waterborne tonnage per year: 67.2 million (2009) |