Working to reduce sewer flooding

Simon Collings represented OFA at the second meeting of Oxford City Council Scrutiny Panel on sewer flooding. Thames Water (TW) gave an update on where they are with a) Grandpont and b) the Oxford Catchment Study:

At Grandpont they have identified the most likely causes of sewer flooding and TW will now work with the City Council and residents to improve things. Local resident Brian Durham of OFA and SOFAG has been closely involved in this work.

On the Catchment Study they are engaged in two parallel processes:

  • a physical inspection of assets across the city – with any issues they identify being fixed as they go along (where the business case is obvious). This includes an inspection of both main trunk sewers.
  • customer surveys to help them understand where problems arise during a flood and how these manifest themselves.

So far they haven’t encountered anything which would suggest they need major capital investments, though they do plan to upgrade the pumps at Littlemore.

TW are talking to the Environment Agency (EA) team working on the Oxford Flood Alleviation Scheme, and the two modelling teams are going to share data and work together. By good luck the option development phases of both projects are working to similar timetables. EA will help TW understand how the river flooding affects the sewers, and TW will contribute to that work.

There will be one more meeting of the Scrutiny Panel in November/December but from then on formal reports will be given through the Oxford Area Flood Partnership, to avoid duplication of meetings.

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An exciting time!

20 January 2011

This is an exciting time!

Things in the Botley Road area which we have promoted and campaigned for for a long time are coming to fruition. The works will reduce flooding of properties by surface water. They result from cooperation between various bodies, including OFA.
At the end of 2008 we suggested setting up an inter-agency working party to concentrate on the Botley Road area. This was immediately taken up by the EA and agreed by the Oxford Area Flood Partnership in January 2009. Things began to move. Oxford City came up with the suggestion of a road hump at the top of Earl Street to redirect flood water; which fitted well with our suggestion that flood water be directed down Lamarsh Road instead of Earl Street, by lowering part of Lamarsh Road. The Earl Street hump is now going in – the result of work by County, City, EA and ourselves.

Very soon we expect work to start in Lamarsh Road, to lower the far end of the road. Here, as well as those already mentioned, developer Kingerlee has played a key role. A new flood route will in due course take floodwater away through the Kingerlee site to the flood meadows beyond.

Not far away, work is starting on another OFA-initiated project: the installation of flood culverts under Willow Walk. Much of the assessment and planning has been done by Oxford City in conjunction with the EA.