The ship that crashed into the Baltimore bridge is a 'monstrous' size, says veteran ship captain. But that's standard now.

• Dali, the 984-foot-long cargo ship that collided with the Baltimore Key Bridge, is considered a standard size.
• Container ships have grown 1,500% in size over the last 50 years.
• Even though cargo shipping safety has improved, any rare accident could be catastrophic and complicated.

Dali — the cargo ship that collided with the Francis Scott Key Bridge in Baltimore on Tuesday measures 984 feet in length.