Saturday, July 21, 2018

Hamilton, Rivers









Pictured above is the Flat Rock River and it flows right through my home town of Columbus, Indiana and I grew up with this river about 100 yards in front of my house. Over the years, I have watched this river continuously alter the environment and land around it.
There have been a few major floods that have happened with this river and each time there are new types of debris. As shown in a few photos, the bigger logs and rocks have been brought to the shore from flooding and rising water. The bigger pieces flow with the river mostly as bed load, meaning they skip and jump along the bottom. When the water level lowers again, the rocks are left. This river is a tributary of the White River, and meanders quite a bit, especially in the northern.
The river also carries a lot suspended load sediment and it is evident when it floods. When the flood waters lower back to the normal depth, the silt from the sediment is shown on the trunks of trees and plants nearby, perfectly showing the height the water reached.
The running water has significantly eroded the rock and earth that border the river. In a few photos, you can see that the trees are leaning, a lot of this is because the rock and dirt supporting the roots have been eroded away, causing the tree to lean and sometimes fall over. As a lot of the pictures show, the water has poor clarity, this is contributed to sediment and silt that are constantly flowing through the river.

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