I beleive Weyco has a gate at the bridge.You cant miss it.But I would try. Dont like dents in the rigs.Itll probably be closed \:D If you hit it you went a hair too far.
Unless theres some logging going on above it.Then it may be open.If you go through it they will probably run you out.If your lucky.If not they will have you cited for criminal trespass.
I sure miss the good ole days when you could drive wherever you wanted on logging roads.