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https://youtu.be/WJX_uCOUHZk
For it to be that intense something along the creek or river had to fail or collapse, right? I can’t imagine that amount of water rising that fast without some sort of failure
Good question.I'm looking at the topo map of that area. It's an east-west flowing creek that empties into the TN River/KY Lake not many miles to the west. It appears to be a fairly steep valley with ranges of hills with side tributaries flowing out of the hills from the north and south. I'm no expert on any of this by any stretch. But, I just wonder if the drainage area just hit a tipping point. The throughput of the creek hit a wall when it reached a certain level before flowing out into the lake, and it wasn't able to as efficiently eject the extra water, as the heavy rainfall slammed all the side tributaries with massive volumes of water which all quickly emptied into the valley that Waverly sits in.That's just an amateur guess.
I heard an explanation for the rapid nature of the flood in those neighborhoods.It seems that there was a bridge upstream that created a damming situation with debris that washed into the upstream side of it, forming a temporary reservoir of flood water. The mass gave way and collapsed, sending the wall of water crashing downstream.
To further elaborate so this even makes more sense, it was apparently a railroad bridge where the event occurred. The railroad grade/train track is elevated. When the crossing over the creek was blocked, the track ridge actually behaved like a levy, which contained floodwaters backing up behind the railroad crossing. When the blockage at the railroad bridge broke loose, it truly was like a dam broke.
To further elaborate so this even makes more sense, it was apparently a railroad bridge where the event occurred. The railroad grade/train track is elevated. When the crossing over the creek was blocked, the track ridge actually behaved like a levee, which contained floodwaters backing up behind the railroad crossing. When the blockage at the railroad bridge broke loose, it truly was like a dam broke.
Maybe I missed it, as I haven't been following weather very closely of late, but where did all this rain come from?