Tuesday, January 12, 2010

Elevation Maps, water flow.

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North of Main Street:


Red line indicates ridges where water flows from. blue arrows indicate approximate direction of water flow.

Note the large flat space north of main street. it is difficult to tell where water flows because these are 1 meter contour lines, and the variation in land elevation in much of the area is less than 1 meter.

This means two things:
1.) the area is quite flat, so water will not easily flow to begin with.

2.) it is not possible to tell from this data exactly how much of the area north of Main Street and east of town flow back into town. It is fair to assume that areas immediately adjacent to existing development do flow into town, and increased impermeable surfaces will excel the flow of water during storm events, increasing flooding within town.

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South of Main Street:

The map below shows Damiansville south of Main Street and East of Town.

In this region of town, water will flow south and east towards the I-64 Interchange. This means that stormwate will flow away from the existing town. It also means that any new development will either need to manage waste water on site or could require a lift station to carry waste water towards the treatment plant. A possible location for a lift station is indicated with the orange circle.


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