Why is such a tunnel needed?

3 years ago by funny to c/asklemmy

I found such a photo on the Internet and became interested in what function such a structure could perform.

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StarManta 601 points 3 years ago

My guess is that it will be a “nature highway” so migratory species can cross over the road

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NarrativeBear 429 points 3 years ago

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These are great for wildlife as they provide a safe crossing over high-speed highways. They are usually design to be in already existing migration paths where moving a proposed highway may not work and not disrupting migration paths is of importance.

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RealFknNito 131 points 3 years ago

So they're literally building the mountain next year. Neat.

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NeoNachtwaechter 18 points 3 years ago

They dug it out before. Later they rebuild it. But if they wait for a year, nature suffers much.

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FunderPants 43 points 3 years ago

Looks like a nice choke point for a predator to hang about.

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SzethFriendOfNimi 48 points 3 years ago

Possibly but I’d think it’s still safer than vehicles and less disruptive to overall migration for a given species.

I wonder if there’s been any studies showing how effective, if at all, these are.

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FooBarrington 29 points 3 years ago

Are there any predators smart enough to strategize like this? I know that some use water holes as hunting grounds, but that's probably more instinctive than actual strategy.

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NarrativeBear 19 points 3 years ago

It's taken into consideration of the design of these crossings.

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hexabs 15 points 3 years ago

-- Mountain Lion Sun Tzu

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Honytawk 2 points 3 years ago

It is like that playground game, but with less violence since only one player gets hurt at a time.

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Mango 3 points 3 years ago

It's also amazing visually! Forget regular highways! Let's have buried highways! That's especially good for if our country is invaded because we can install physical barriers to logistical supply lines against us!

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LufyCZ 1 point 3 years ago

Buried highways would be insanely expensive, and in the case of invasion, one well placed shot would completely kill logistics for the defenders as much as it would for the invaders, so probably not the best idea to rely on those

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Asudox 1 point 3 years ago

That's beautiful ngl

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