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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. However, it remains under increasing pressure and is sometimes overwhelmed.

Several factors increase the risk of sewer flooding in both our urban and rural catchments. These include increasing periods of prolonged and heavy rainfall, population growth, fewer green areas and changes in agricultural land practices.

Who will resolve sewer flooding?

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

We're seeking to work with all stakeholders to ensure that 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's supported by a broad range of drainage activities that'll help us to fully understand the factors affecting 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 based on a wide range of issues which are not all related to sewer flooding.

You can download the reports below.

Drainage strategies

In addition to our catchment studies, we're developing drainage strategies for affected catchments. These will explain how we'll ease their sewer flooding and growth-related issues and improve drainage, now and in the future.

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

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

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