Most folks might have heard by now about Hurricane Helene that roared up from Georgia last fall and leveled much of the southern Appalachians as far north as Kentucky. The weather system
made a long turn east of Asheville, N.C., then north along the western North Carolina border then northwest across western Virginia and eventually ran out of steam in northern Indiana and Illinois.
If you saw the news, the flooding was mostly in Tennessee and western North Carolina and the in the floodplains the Doe and Nolichucky rivers.
I live in Johnson City, Tennessee, Washington County, and we took a hit from the floods along our south county line when the Nolichucky, coming down from North Carolina flattened parts
of the town of Erwin, scoured a 15-20 miles-long path along its former river bed.
The bulk of the damage in Tennessee was in Unicoi, Carter, and Johnson County all to our south and east. This is now being labeled a 1000-year flood. I am never be sure if we are at
an end of a 1000-year time, at the beginning of one, or in the middle. Meaning, once in 1000 years is not much help. No one was living here 1000 years ago.
Homes, stores, churches, and the Unicoi Hospital in Erwin were damaged beyond repair. Places along the river in Washington County that had been home for several generations were now
gone. In some places even the foundation or slab shifted. The torrent was not something buildings were made to withstand.
I have no idea how many well-built, modern bridges were washed away. The debris field is too large to imagine and the cleanup will take a long time. Eight months on temporary bridges
and roads are in place. Homes are being rebuilt. The horror of it is still fresh.
I imagine a common conception is this brings new soil to the valley. The valley itself has been here for probably a couple of million years and has time time to clean the soil. The eons
have allowed weeds and trees to grow and rot and insects and worms to dig through the soil. I read that agencies are now testing the mud layer for metals and not-nice stuff. Certainly a lot of dirt is transported from one
place to another. More than likely what got transported was all that not-nice stuff in sheds and garages that we’d rather imagine did not get in our drinking water. In the soil is not better. The water picked up motor
oil, fertilizers, antifreeze, manures, dead cats, and more junk than imaginable and all that is now in a field along the river banks. One flattened curve in the river reportedly collected cars with North Carolina license plates.
The heavy rain (30 inches) fell in North Carolina at the headwaters of the Nolichucky and Doe watershed. Towns a little further east were inundated with plenty of damage of their own.
As the water deepened and headed down hill by the time it crossed into Tennessee the fate of many places downstream was sealed. A drive through the mountains always reminded me of past floods with makeshift bridges not even
good for foot traffic crossed some creek a yard wide and a foot deep straddled now by a modern culvert bridge. Which worked for a short while until a mattress and a lawn chair and dead cow clogged up the culvert causing the
water to over top the culvert and it’s access road. A washed out bridge was the end.
This was a serious problem in flooding last year in Franklin County, in Middle Tennessee. Too much junk in the ditches, yards, public dumps, provided plugs to the drainage creeks and
culverts. It doesn’t take a lot of rain to make a disaster.
For one day and one night it rained. At my house it rained and blew. Most of us woke up to the news of the flooding in Erwin and were advised to not travel that way nor even go down
to sight see.
Relief had already mobilized the following morning before sunup. As the crest passed and the river leveled, work began. Remarkably Washington and Unicoi County emergency agencies were
already at work. Choppers ferried patients and staff from the hospital roof. It was heroic.
The immensity of the debris field is staggering. This is just the leftovers. The rest is still traveling downstream. I suppose the light stuff eventually will end up strewn along the
banks all the way to Douglas Lake.
Some of the aftermath will be with us longer than to rebuild homes. Soil samples being taken will determine whether farmers dare to plant crops or graze along the river. The change in
the topography has changed which will determine where someone can build.
The personal tragedies will last forever.
If it is true that there appears to be a randomness in weather then we might want to ask what collection of weather positioning caused a weakened Helene to pass over western North Carolina
instead of farther east or west. The results would have been so very different.
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