Another railroad or an auto bridge? Thanks.
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."
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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.