3. improve River conditions by dredge rivers where shallow. Decorative track bank erosion removal of weeds which have been, or destroy the barrier ran out of water flowing out and if there are a lot of bending River, it might consider digging, remote connections at the North and hold the shortcut with the end of the curve, which will make the water flow through more quickly. For example, a project to dig a canal shortcut to retract that causes Poe samutprakarn distances up to 17 miles of water, drain into the sea more quickly.
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