I never saw it before but it was on the "history channel" earlier this evening and on again right now. From early canal companies to when the government took it over. This deals with the east coast from boston to the keys. Not sure if its a repeat.
ICW Waterway Guide circa 1912 For a great summertime read on this subject, I highly recommend "The Boy, Me, and the Cat: Voyage of the Mascot 1912-1913" by Henry Plummer. The narrator, accompanied by his son (plus the family kitty), gives a very wry and entertaining firsthand account of sailing a 24-foot catboat down the ICW from Boston to Miami and back. Complete with photos & illustrations, Mr. Plummer depicts in great detail what yachting was generally like back then for average folks and what, in particular, one faced by choosing to run the 'inside'.