Building the Cape Cod Canal (5) tv-g Play video Select your TV provider to log in to have full access to videos Select your TV provider See all providers Don't see your TV provider? Learn more You can access this video on the free HISTORY® apps. *You must verify your TV provider towatch this video on the App Your Parental Control settings do not allow you to view this content. Building the Cape Cod Canal (5 min) tv-g The idea of developing an all-water route across the isthmus of Cape Cod had been around since the 1600s, but the canal wasn't built until 1914. What took so long?