A staggering amount of money is slipping away due to the Baltimore bridge collapse

• The Port of Baltimore is closed "until further notice" following the collapse of a major bridge.
• Experts say the closure alone will bring some $15 million of daily economic activity to a halt.
• The impact is likely to increase from there as a critical roadway is severed and routes are shifted.

Hour after Baltimore's Francis Scott Key Bridge collapsed on Tuesday morning, the scale of the economic toll is beginning to emerge.