What Happened To The Old Suez Canal

I have read before the present Suez Canal that there were other canals that connected the Red Sea with the Mediterranean Sea in ancient times.

I see the Canal of the Pharaohs and it mentions silted up but what happened to other canals in the area?

Do we know for sure they existed? And did they just get closed up because of neglect? Or were these canals very different from the present day canal?

Basically I wanted to know what happened to the older ones. Or was it just naturally silted up and no one could bother to keep it open?

Journal of Middle Eastern Studies article on it here, can’t read the whole thing without paying but the first page seems to make clear that there is textual and archeological evidence.

http://www.jstor.org/pss/545471

Anyone got access to read the whole article?

I can. The article basically states that there is a lot of historical written evidence for two ancient canals, but that the physical evidence has decayed significantly because parts of the old canals are used for agriculture today and other parts have been covered with dunes.

Carol A. Redmount. “The Wadi Tumilat and the ‘Canal of the Pharaohs.’”Journal of Near Eastern Studies 54.2 (April 1995) 127–135. http://www.jstor.org/pss/545471

Oh, as far as what happened to the canals, they required a lot of upkeep.

Ibid.

Until the the damn in Assuan, Nile was known for its mud. Prevention of silting of a canal that actually links river Nile and the Red Sea is way harder than for a canal with sea water and little flow.