Last reviewed: 3.6.2011 - 2.09am
More intense storms resulting from climate change, increased housing development and the paving over of green spaces to provide off-road parking, are all increasing the amount of surface water entering our sewer network.
This, combined with people disposing of inappropriate waste into our sewers, is contributing to an increased risk of sewers flooding homes and properties.
In this section
Why do sewers flood?
Find out why our sewers are occasionally overwhelmed by heavy storms.
What we're doing to tackle sewer flooding
Read about how we are investing £346m to reduce the threat of sewer flooding at 2,500 properties by 2015.
The Big Map
We're investing nearly £5bn between 2010 and 2015. Explore our interactive map to find out how your region will benefit.
Our strategies and plans
Providing the essential service to our 14 million customers is not something we take for granted, so we're always planning for the future.
