heavy-duty blue big rig semi truck transporting industrial cargo on step down semi trailer driving on the long bridge across the

american big blue book bridge business cargo carrier carries carry cdl chassis columbia commercial connection delivering delivery destination diesel distribution down driving eighteenwheeler fifth fleet freight haul haulage hauler heavyduty highway industrial intersection landscaping loaded loads log logistic logistics long lorry moving operator overpass owner pick portland protection rig rigs road running safety schedule semi semitruck shipping step tractor traffic trailer trailers transit transition transport transportation transporter transporting travel truck trucking trucks wheel wheels