At the top is Boulevard East at Liberty Place. I have been up there, walking Boulevard East, without realizing that the road needed to be supported by stonework and steel. Somehow, I had imagined that the edge of the cliff was naturally flat. The view, of course, is looking up Pershing Road. A zig-zag stairway now climbs the cliff from the curve (ahead in the photo) to a gate in the fence along Boulevard East. See Google Street View for a recent view. There is no railroad in that hole atop the cliff. I would label it as roadway support "under construction."
Of interest to me is the derail that faced Union City cars coming down the hill before the curve. The Public Service motorman would have to open the door and move a large lever to negate the derail. The purpose was to halt runaway cars before the curve. I rode this line two or three times in the late 1940's.