Ex: https://en.wikipedia.org/wiki/Edmonston_Pumping_Plant, https://en.wikipedia.org/wiki/Dos_Amigos_Pumping_Plant, etc.
(The longest tunnel in the world is also a water tunnel, and supplies NYC with water[1].)
The longest one that I know of is the Grand Canal in China, which begain construction approx. 1400 years ago. https://en.wikipedia.org/wiki/Grand_Canal_(China)
As far as geography/geology/hydrology goes rivers have a specific definition which the grand canal might not fit especially as one big system since afaik it extends and connects to multiple rivers and the water doesn’t flow in a single direction into a larger body of water.
You do have a point though that this new river in Egypt may be the 'largest' on some other metric.
For example the Mississippi and Ohio river are considered different rivers even though their waters mix and both flow downstream through the same channel.
https://en.wikipedia.org/wiki/Ohio_River, https://en.wikipedia.org/wiki/Mississippi_River
In English: https://en.wikipedia.org/wiki/Draining_of_the_Mesopotamian_M...
The grand canal connects the Yellow and Yangtze rivers, for example.
There's one underground that's even longer: https://en.wikipedia.org/wiki/Delaware_Aqueduct
Fairly recently it decided to shorten it's own spillway a bit though. Shortly afterwards it gained a whole lot of concrete.
Juan Brown has a very comprehensive series on that excitement[0]
[0]https://www.youtube.com/watch?v=Wikin2TJ7b0&list=PL6SYmp3qb3...
It could concievably have no pipe longer than 114 km.
Also if it's underground it's not a river?
But this is could be a great moment of recognition, of how annoying american exceptionalism in all things is. Its always invented in the us, and all the greatest things are in the us, and that ignorant garbage is spilled everywhere for humanity must hear it. For here, you felt the annoyance about fanboyism, instead of information for yourself.
Now imagine that, in all us-based international media, 24/7. And that self-toasting nonsense is so pervasive, even the kids start to believe it, and start to question museums, showing earlier instances of "us" inventions.
How can a country that is barely even 300 years old, have such a bloated ego. What deep rooted insecurity makes it necessary to toot ones horn, long after all neighbors have gone deaf? Is this the result, that all those great inventors usually were just migrating into the us, basically using the country as stage for what other cultures educated and produced?
Sorry,i know your post was (partially) ironic, but it was the last drop, in a large river, going against the damn given.
>> How can a country that is barely even 300 years old, have such a bloated ego.What deep rooted insecurity makes it necessary to toot ones horn, long after all neighbors have gone deaf?
I don't know what has caused you to lash out in that manner, but that was unnecessary. OP did not make a claim that the California aqueduct was the longest man-made river, merely that the aqueduct is longer than the Egyptian project, so the latter's claim to the longest man-made river might not be valid.
By and large though for PicassoCTs, the framing of my comment was to poke fun at the editorial decision to call it the longest man made river, I did not, and do not, under appreciate the positive aspects of the project and the industrial and political will Egypt had to muster to create it. You need look no further than high speed rail, which the Egyptians are well on their way to building a network to connect the northern part of the country to the south, and California, a state with an economy literally 10x the size of Egypt's has been unable to pull off.
So no, I harbor no misconceptions about the US being "exceptional", you can rest assured of that.
Have a pleasant day
Basically built for the same reason, the central valley of California was mostly arid but the top soil was good for agriculture. The underground aquifer was a limit on how much farming (and of what type) could be done.