A terrific article in ‘Aramco World’ on ancient canals in Egypt.
A wonderful reference for The (Suez) Canal of the Pharaohs.
You can still see it from space to this day!:
The Wadi Tumilat and the “Canal of the Pharaohs”
Carol A. Redmount
Journal of Near Eastern Studies
Vol. 54, No. 2 (Apr., 1995), pp. 127-135
I keep talking about it, and it keeps happening. The Chinese keep whittling away at the Panama Canal. First buying port facilities, then investigating overland routes, and always, an alternate canal, Chinese-owned.