How Do They Do It?

Season 14 Episode 18: Steam-Powered Boat, Waterwall

How do they build the famous steam-powered paddleboats that cruise the Mississippi River? How did they create the powerful defence system called 'the waterwall'?

Genre:

Documentary

Seasons:

17

Episodes:

287

Cast:

Quality:

HD

Duration:

22 min

First Air:

2006

Rating:

7.5