Here's a case when a $660k tunnel didn't work out because it spooked the animals, then the Marines blocked it: https://jesseshunting.com/threads/660-000-wildlif

Here's a case when a $660k tunnel didn't work out because it spooked the animals, then the Marines blocked it: https://jesseshunting.com/threads/660-000-wildlife-tunnel-under-calif-highway.18481/ https://jesseshunting.com/threads/660-000-wildlife-tunnel-un...