I think the idea of more opportunities to cross is good but the pricetag is absurd still. After all, they are terraforming a hillside. I think it is a little misplaced though. We assume animals need this to cross but it seems they can take a regular old bridge just fine. You can probably build a cheap "animal only" overpass, e.g. maybe a light load mesh metal or plank bridge or somesuch, for a fraction the cost and offer many fold more crossing opportunities across more of the freeway vs just one big budget spectacle. I'm sure the contractor was connected in some way. A sort of storm drain like underpass design would probably also be cheap if done during routine freeway work.