Ron Page and friends conducted important investigations into the probable site of the ancient bridge in the 1990s and Ron published the outcomes, with historical information, at the time.
He has now published photos and drawings on Flickr
http://www.flickr.com/photos/ronpage1924/sets/72157628820767245/
The full published version of Ron's paper can be downloaded at https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B1tWr0-5tVI_OGRkMWVjYjctOTNkMC00ZjUyLWFhMTgtMTA2OGI5MzBhNTE3&hl=en