[Tagging] siphon underpass

Mike Thompson miketho16 at gmail.com
Thu Jun 8 16:40:42 UTC 2017


Not all siphons are not entirely tunnels or culverts:
https://www.openstreetmap.org/way/329482560 is a siphon, but it still
crosses over, not under, US34 and the Big Thompson River.  The purpose of
the siphon in this case is reduce the length and height of the bridge
necessary to support the aqueduct.

Here is a street level view of the siphon:
http://www.gildea.com/albums/BigThompson/IMG_1082.jpg
There is an open canal on the top of the canyon on either side which feeds
down into the siphon on the left in the photo, and back up on the right.

Mike

On Thu, Jun 8, 2017 at 9:10 AM, Volker Schmidt <voschix at gmail.com> wrote:

> @Javbw
> how are these tagged?
>
> On 8 June 2017 at 17:08, John Willis <johnw at mac.com> wrote:
>
>>
>>
>> > On Jun 8, 2017, at 10:40 PM, Volker Schmidt <voschix at gmail.com> wrote:
>> >
>> > flat parts of the world
>>
>> Common on irrigation aqueducts/canals/drains both large and small here in
>> Japan, especially when they cross (under) a natural waterway. Without
>> connecting to it.
>>
>> Javbw.
>> _______________________________________________
>> Tagging mailing list
>> Tagging at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/tagging
>>
>
>
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