for potentially three reasons. one, poe tentially, as professo was talking about, the sediment itself could compromise. that's one. two is potentially the corrosion of this steel. you know, this -- as you noticed, this right next to the ocean. and also, area collapses the oceanside. right? so corrosion will compromise capacity of the column. if the column fails, everything fails essentially. and a third reason potentially something compromise the columns, pillars, maybe truck or something run into it. highly unlikely but those are probably, three potential reasons why this thing's collapsed. >> it's a really interesting thing that you point out which i had not realized because i didn't have a sense, the side that collapsed, you are saying, is the side that faces the ocean. >> yeah. exactly. usually, you see more corrosion