SEWER FLOODING can now be predicted on a property by property basis with a new flood risk management model developed by consultant MWH.
Insurance and water companies are now working with MWH to see how they can use the tool to insure properties and prevent sewer flooding.
'Our modelling tool can be used proactively so that water companies will be able to predict which properties will be at risk of flooding in the future, due to the effects of climate change, ' said MWH senior principal engineer David Balmforth.
Traditional sewer models cannot relate individual property levels to the position of the sewers, but simply predict when a sewer system will surcharge and which manholes will flood.
The new model will relate the spatial position of a property to the configuration of the sewerage network by using the co-ordinates of a particular address. It then takes digital ground data and interpolates it to get the level of the property.