I was visiting Tasmania recently and I think it’s the most scenic state among all. So I was wondering if we can build a bridge to connect the mainland. It seems the ocean in between isn’t that deep either at an average of 60m depth. The deepest bridge in the world goes at depth of 120m from what I read online and understood. The longest bridge in the world is at 160km. The distance between mainland and Tasmania is 250kms. So probably it’s not impossible to build. If it’s a possibility how much would it cost to build?