There are only 8 standing structures from Gilchrist to N. Tuna Lane. Those buildings are about half way between Gilchrist and Crystal Beach.
This was confirmed via NOAA areil photos.
NOAA photos can be downloaded at http://ngs.woc.noaa.gov/ike/AddedInfo.HTM
Port Bolivar to Gilchrist are in zip file 1.3 Gilchrist, more particularly roll-over pass can be seen in photo geo-C25883946.jpg, there is nothing left.
