[Tagging] Irrigation: ditches, canals and drains

[Andy Townsend]

On 31/05/2019 01:06, Joseph Eisenberg wrote:
> The usage of the word "aqueduct" in American English is broader than
> the meaning of the word in British English.
>
> Cambridge dictionaries defines the noun as "a structure for carrying
> water across land, especially one like a high bridge with many arches
> that carries pipes or a canal across a valley" -
> https://dictionary.cambridge.org/dictionary/english/aqueduct
>
> Oxford dictionaries: Noun "1. An artificial channel for conveying
> water, typically in the form of a bridge across a valley or other
> gap."
> "2. A small duct in the body containing fluid."
>
> But in the USA the word is alway used for long canals and tunnels
> designed to carry water to a city or for irrigation:
> Merriam-Webster (one of the better-researched American English dictionaries):
> 1 a: a conduit for water
> especially : one for carrying a large quantity of flowing water
> b : a structure for conveying a canal over a river or hollow
> 2 : a canal or passage in a part or organ
> https://www.merriam-webster.com/dictionary/aqueduct
>
In the UK the word is also used for "long canals and tunnels designed to 
carry water to a city":

https://www.openstreetmap.org/relation/2734272

If I was going to describe an individual bit of that, e.g. 
https://www.openstreetmap.org/way/203739284 , I'd say it was a pipeline, 
but the thing that it's part of is an aqueduct.

To take a walking route analogy, where a name of a street can be part of 
a longer route, the pipeline is like "Mount Gleason Road" and the 
aqueduct is the "Pacific Crest Trail" (see 
https://www.openstreetmap.org/way/203017590 ).

Best Regards,

Andy