Monday, February 11, 2008

What happens when Wal-Mart detention pond is full on Sixth Street? This project is the final item on tonight's Planning Commission agenda

This tiny tributary of the West arm of the Town Branch of the West Fork of the White River floods the lot that is to be filled for construction of the so-called Farmers' Market commercial development. When the site is filled with red dirt and paved, the stream will be compressed and the neighbor's yard will flood and that flow will become a larger torrent threatening the house and other property downstream.
View east showing previously ditched but now natural-appearing stream flowing east. If this stream is put in a pipe, it will simply come out somewhere downstream flowing faster.

Third photo is of the big pipe that allows flow from the Wal-Mart detention pond on Sixth Street to flow to the east and between the lot set for construction and a private home to the south with the water heading into the West Arm of the Town Branch of the West Fork of the White River.
Note the bent grass, suggesting the speed and power of runoff when the detention pond fills.

This whole lot should continue to be a natural rain garden that would help alleviate downstream flooding and accept a bit of water from the street flow to help clean that water as it soaks in!

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