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Drainage plans

Drainage strategies

Britain’s first sewerage systems were constructed in the Victorian era and have served us well for generations.

The sewer network we operate today has been much improved over the years yet it remains under increasing pressure, and is occasionally overwhelmed.

Increasing periods of prolonged and heavy rainfall, along with a few factors including population growth, the loss of green areas and changes in agricultural land practices, are increasing the risk of sewer and surface water flooding in both our urban and rural catchments.

Who will resolve sewer flooding?

There are several stakeholders who, like us, have important drainage responsibilities and therefore, play an essential role in alleviating sewer flooding in our region.

We are seeking to work in partnership with all stakeholders to ensure that together, we implement and maintain the most effective, environmentally responsible and sustainable drainage strategies.

What we're doing

We have a five-year plan that will reduce the risk of sewer flooding for over 2,100 properties across our region. It is supported by a broad range of drainage activities that will help us to fully understand the factors influencing sewer flooding.

Sewerage catchment studies

We carried out five catchment studies to investigate whether more properties can be protected. These catchment studies are looking at traditional and new methods to reduce flooding and improve levels of service.

The studies took place in Aldershot, Brent, Oxford, Ravensbourne and Swindon. These areas have been selected on the basis of a wide range of issues which are not all related to sewer flooding.

The reports are available to download below.

Drainage strategies

In addition to our catchment studies, we are developing drainage strategies for affected catchments to explain how we will alleviate their sewer flooding and growth-related issues and improve drainage; now and in the future.

We will undertake a broad range of activities within our catchments over the next few years as our drainage strategies develop.

We will regularly consult with customers and stakeholders, update and republish our catchment drainage strategies as they develop throughout the 4-stage framework process.