The floodplain is wide, and the alluvial silt goes down a long, long way. If you dredge the river, it will erode the banks and find it's own natural course. If you pile the edges, the silt will flow up from below. I have a flood plain at the bottom of my garden; the old area maps say 'liable to flooding', and 'not suitable for building'. Where the planners allowed building because it hadn't flooded for a century, the first thing it did was flood and the people that had the misfortune not to have seen the old maps suffer as a consequence. When my bit of flood plain gets inundated, there is 4 " of water under my floorboards, the house gets damp and smells, but then dries out for the next ten years. I too didn't research it, I was just fortunate enough to be a few inches higher than the other houses.
@TheCWMHALL4 жыл бұрын
The old Georgian and Victorian houses at Bridgnorth ( Salop ) on the River Severn have a flight of steps up to the front door , however modern properties built on the flood plain have ignored this practice .