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Home » GeoNotes, Southwest Asia and North Africa

Egypt’s Storied Wadi Tumilat

Submitted by on August 7, 2012 – 4:29 pm 3 Comments |  

The Wadi Tumilat is the easily visible green branch stretching East from the Nile Delta to Lake Timsah and the larger Great Bitter Lake below it.

Most monuments from Egyptian antiquity are grand, conspicuous, stone-made, and thoroughly impractical. The Wadi Tumilat, a defunct Nile distributary branching East from the delta, boasts no such monuments. In ancient times it was a vital part of the Canal of the Pharaohs, a major feat of ancient civil engineering that linked the Red Sea to the Mediterranean via the Nile. Today the waters  of the Wadi Tumilat are mostly used for irrigation, though a trickle does arrive at lake Timsah where it enters the modern Suez Canal. The favored route in ancient times (see map below from Wikipedia) largely coincided with the current route south of Lake Timsah to the Red Sea, but from Lake Timsah it turned West through the Wadi Tumilat to join the Nile near the base of its alluvial fan.[1]

The earliest written evidence of the canal route comes from the so-called “Chalouf Stele” recorded by the Persian Emperor Darius I around 500 BCE and discovered by the Frenchman Charles de Lesseps in 1866. A portion of the stele reads: “I ordered [the Egyptians] to dig this canal from the river that is called Nile and flows in Egypt, to the sea that begins in Persia [the Red Sea]. Therefore, when this

canal had been dug as I had ordered, ships went from Egypt through this canal to Persia, as I had intended.” Greek and Roman authors would later claim that earlier Pharaohs such as Senruset III, who ruled from 1878 BCE to 1839 BCE, had at least begun work on the canal, though their efforts may have been unsuccessful. Both the Ptolemys, who ruled Egypt from 305 BC to 30 CE, and the Roman emperor Trajan, who ruled from 98 CE to 117 CE, are credited with repairing or re-digging the canal. The canal silted up due to neglect during the late Roman and Byzantine periods, but was reopened by Egypt’s Islamic conqueror Amr ibn al Aas by 642. The canal was closed for good in 767, ostensibly to cut off supplies to the rebellious cities of Mecca and Medina.

A new Suez Canal using a revived Wadi Tumilat almost became a reality in the early 19th Century. Napoleon was fascinated by classical authors’ descriptions of an ancient canal linking the Mediterranean to the Indian Ocean, and felt that control of such a waterway could allow France to supplant the British Empire as the dominant European power in India, with all the lucrative trade that entailed. Between 1798 and 1799, Napoleon’s top engineer Jacques-Marie Le Pére and his team traced the ancient canal from Suez up through the Wadi Tumilat to the Nile. Unfortunately for Napoleon’s aspirations, a mathematical error led Le Pére to conclude that the Red Sea was 8.5 meters higher than the Mediterranean, and that a new canal through the ancient route would be inadvisable.

It is difficult for us to appreciate the difficulty inherent in digging and dredging a canal without modern technology or even tools we would recognize as proper shovels. The Nile River’s famous silt, once the foundation of Egypt’s prosperity and now blocked by the Aswan Dam, would have been of a curse for canal navigation on and beyond the Wadi Tumilat. Workers in the deserts of Suez would likely need to have all of their supplies brought in from quite far away. So the next time you see a lone green line of the Wadi Tumilat branching off the Nile Delta, remember that the ships that once passed through it were as great a monument to Egyptian ingenuity as any obelisk or pyramid.



[1] The best overview of textual and archaeological sources on the ancient Suez Canal is Redmount, Carol A. 1995. “The Wadi Tumilat and the “Canal of the Pharaohs”. Journal of Near Eastern Studies. 54 (2): 127. http://www.jstor.org/discover/10.2307/545471?uid=3739560&uid=2129&uid=2&uid=70&uid=4&uid=3739256&sid=21101126011267

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  • David Schwartz

    There was an article from Saudi Aramco World recently on the subject: http://www.saudiaramcoworld.com/issue/201202/linking.med.to.red.htm

    One thing they mention was the seasonality of the canal since it could only operate during the flood times and just after, otherwise the water level was too low for ship traffic. Though its seasonality allows for much of the repair work that would be required to maintain the silt levels.

    • Nicholas Baldo

      Interesting. I had been wondering how dredging work was done, and this makes quite a bit of sense. Without a natural dry period it seems like a daunting or perhaps insurmountable task.

      • David Schwartz

        As the article says: “…the canal could only be used part of the year, during the annual Nile flood from September to around February”. Though it never states that the off period was when repair work was under taken the author does imply that that was the case. Also that would tie it into Egypt’s labor traditions, when the flood season was over and the planting was finished the agricultural laborers would be free to undertake governmental construction work. Such as clearing a canal.