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> On 5. Jun 2020, at 15:44, Dave F via talk wrote:
>
> There can't be both a tunnel and bridge. It's one or the other. This goes for
> all scenarios, including roads.
you can have both, but it is rare...
and it depends on your definitions of course (e.g. you might call it
Do you have an example?
Whether it's a bridge or tunnel is fairly easily defined by determining
which is taking the load.
If a tunnel's structure was removed, would whitewater's above it
collapse? If 'yes' then it's a tunnel.
DaveF
On 06/06/2020 16:48, Martin Koppenhoefer wrote:
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