the rest of the francis scott key bridge under water. late this afternoon, we took off over the crash site. as we fly over this disaster, you can actually see how the bridge collapsed. the cargo vessel crashing in to those concrete pilings, and they essentially cracked, sending the bridge, all that steel into the cargo vessel and then into the river. the search-and-rescue operation ongoing, but experts say the chances of survival are dwindling. the water is 47 degrees, and the bridge was 185 feet, nearly 20 stories above the river. the tides, currents and wreckage could be unstable, yet another challenge for rescue workers. from up here you also get a sense of how big this ship is. it's about 950 feet long. to put that in to perspective, it's about the size of the empire state building. when you look at the deck, nearly every inch of it is covered by containers stacked ten high. >> when i got the phone call, i thought it was fake. >> reporter: just hours before the collapse, longshoreman shawn jackson was loading cargo on to the ship. di