This is the now missing Crown Point Bridge. Opened in 1929, closed in October 2009, blown up in December, 2009. For a long time my wife and I had always wondered if this thing was safe as the rust was everywhere. Taken from Crown Point Historic Site, New York and looking east. Crown Point, New York. July, 2007.
See some of the history on what was a historic bridge:
http://www.lcmm.org/shipwrecks_history/history/champlain_bridge.html
http://poststar.com/app/media/2010/bridge.php