I would agree with nathan, that the bridge needs to be reopened, and I was taking a look at the photos James & I took, and I seen what you was talking about, and yeah the deck truss does rise above the deck.
I was looking at the photos of this bridge and it appears that the deck truss at the far end actually rises up above the deck at one end. Very unusual. This bridge should become a public bridge again, and all the trees around it removed so the bridge is secure and people can actually see it.
this bridge is on private property, with no trespassing signs on both sides of the bridge. but on the side that we had no access to, it has a curved gurder approach and a deck truss which is at downward angle as it drops to the curved approach. It has a very thin concrete deck on it. Wish that we could have walked on it.