Sounds like a decent project to me, with the only concerns being the brief mention of a stream. We have a couple state parks here that allow bikes on the trails, and the erosion they're causing is appalling. That erosion is washing into a major tributary of the Chesapeake bay. If it was a construction company, they'd be fined out of existence if they caused that amount destruction. I'd love nothing more than seeing those assholes thrown out of the park. Someone that's supposed to be "outdoorsy" should know better, and voluntarily quit trashing the park.