This area comes with an interesting history which I will reveal once the photo location is revealed.
That area was part of the CCC activities in the 1930's. From Turtle: "across the bridge was CCC barracks and that this camp housed "colored men". there are foundations out there. I don't know when the bridge dates from, unlikely the 30's, but it is an interesting structure and it leads nowhere now. Out at a point on the lake after crossing the bridge is a stone structure, too small for a dwelling. I took it for a stone barbeque. The stone looks like the stone of the cranberry packing house at Hampton Park. An interesting article on the history of Penn State Forest with reference to the CCC. http://www.state.nj.us/dep/parksandforests/parks/docs/penn_sf_history.pdf