There can be no set answer to your question. An aqueduct's length depended upon the distance between the source of the water and the place where it was going.
Someone threw my bicycle into the aquaduct. This valley would be a desert, if not for the aquaduct.
the aquaduct
It was formerly spelled aquaduct but now it is aqueduct. So aqueduct is the correct spelling.
Noun
It was completed in 1913.
by the centralCalifornia aquaduct
...as aquaduct is to water.
An aquaduct
To bring in fresh water to a city.
move water from one place to another
8am till 4am
cerebral aquaduct!!!