I steered ships like the Dali for 13 years. Entering and leaving a port is extremely challenging — here's what should have been done in Baltimore.

Source: Business Insider

The remains of the Francis Scott Key Bridge in Baltimore after it was struck by a container ship on Tuesday. Roberto Schmidt/AFP/Getty ImagesSachin Saxena is a former ship captain who spent 13 years navigating the globe on large ships.  He breaks down the processes of entering and exiting ports in big vehicles like the Dali.