Why is such a tunnel needed?
I found such a photo on the Internet and became interested in what function such a structure could perform.
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I found such a photo on the Internet and became interested in what function such a structure could perform.
Will there be compacted earth on top of the tunnel so animals can walk?
Yep, they call them land bridges. More of a hill than a mountain, but the meme is right!
This is cool. This is the first time I have heard about such projects.
revisit the comment thread as someone has now posted a photo
....literally what they just said?