seventy percent. Wow!
I was gonna ask why they chose canals instead of building bridges and you answered that in this reply.
Truly remarkable what men can do.
And i’m always up front. I will have to look up the canal you mentioned at the end and I will enjoy looking it up.
I am not well traveled, perhaps my biggest regret. But I enjoy discovering new thins on FR.
If you fancy a little light reading : https://en.m.wikipedia.org/wiki/L._T._C._Rolt
The story of total shutdown to reincarnation is quite special.
Though not on the scale of some pictured here, the Roebling Bridge at Minisink Ford, NY was originally a canal aqueduct over the Delaware River. It used the same suspension cable technology he later used in the Brooklyn Bridge.
Not far from you either...easily in a day-trip drive.
https://en.wikipedia.org/wiki/Roebling%27s_Delaware_Aqueduct