Protecting your home from flooding. Demountable Flood walls

Protecting your home

from flooding

Demountable Flood walls

An on-line floodplain storage reservoir

Low embankments or ‘argaes

The banks provide low-level protection from the River Severn

flooding land. When the rivers overtop the argaes, water is

stored behind them for a period on a large area of flat land andthen

released via sluicegates when the river levels subside.

Argae by the River Severn

Floodplain woodlands

Contour ploughing

Attenuation cells, (also known as Storm Cells, Soakaway Modules, and Storm Crates) are the modern

equivalent of a soakaway. They allow surface water to be stored in one location and gradually released back to the ground, a bit at a time, at a pace the ground can handle,

rather than in one sudden deluge, as happens during a storm or downpour. In effect, the transfer of water from the surface to the ground is attenuated, is slowed down

and stretched out over a longer period.If you dump 1,000 litres of water onto a patch of ground in one go,

unless you're on sand or gravel, it's unlikely the ground will be able to absorb all that water instantly:

attenuation cells work by taking all the water as fast as it's delivered, returning what it can to the ground as

quickly as possible, but storing the surplus until the ground is ready and able to absorb it.

Weirs

Diversion tunnels and

channels

Small-scale garden size

Larger -scale

Aquaflow permeable

paving