Reducing the Risk of Flooding of Earl and Duke Streets and Bullstake Close

21 July 2010

The following is being circulated as a flyer to residents of Earl and Duke Streets and Bullstake Close. Links are being emailed to our supporters.

Update from the Oxford Flood Alliance (OFA) on Progress in Reducing the Risk of Flooding of Earl and Duke Streets and Bullstake Close; July 2010

It is 3 years since the severe floods of July 2007, so it seems a good moment to report on progress made since then, but also to highlight a further project that requires the most urgent and determined action. OFA has worked hard, since November 2007, to make sure things have been done and we continue to do so.

How these streets flood

Earl and Duke Streets flood by a combination of water coming up through the ground, water coming up through the drains and water which arrives over the surface. Bullstake Close floods by surface water.

What has been done

Bullstake Close:
Oxford City Council built a wall around part of Bullstake Close to protect it from surface water arriving from north of the Botley Road. DONE, 2009

Earl and Duke Streets:
the Bullstake Close barrier will hold back flood water until it is overtopped. DONE, 2009

Thames Water and Oxford City have installed special valves which, when flooding threatens, can be closed to isolate the drains in Earl and Duke Streets from other local drains, taking the pressure off them. DONE, 2009

there are permanent pumps in Earl Street, installed by Oxford City (?) to pump accumulating floodwater away into the floodplain to the south. DONE, 2004

the gullies in the street have been altered so that that all now feed into the pumps, so enabling the pumps to work more effectively. DONE, 2010

a culvert has been installed by Oxfordshire County Council at the end of Duke Street and out into the floodplain to the south. This is to provide a route out for water running down Earl Street from the Botley Road. To streamline the flow of this water the pavement has been rounded off where Earl Street connects via an alley into Duke Street. DONE, 2009

a road and pavement hump built by Oxfordshire County Council across the Botley Road end of Earl Street to stop floodwater flowing down the street (until it is overtopped). PLANNED FOR 2010

a barrier across the path leading into the southern end of Duke Street to prevent water flowing into the street from Bulstake Stream which it has done in the past. UNDER CONSIDERATION

the City Council has suggested that residents at the southern end of the east side of Duke Street might like to consider property level defences for their houses. Property level defences means floodgates for doors and sealing off airbricks. If everyone got together and did this, this would make a barrier to stop water flowing into and through these houses from Bulstake Stream. This would directly protect the individual houses and, indirectly, their neighbours. It is possible that grants may be available to help with the costs of this, though current cuts mean this is uncertain. RESIDENTS WILL DECIDE WHETHER THEY ARE INTERESTED.

last but not least, providing an alternative route for floodwater in the Botley Road to get away downstream to the south. In the past it has flowed down Earl Street like a river. The alternative route proposed is down Lamarsh RoadUNDER ACTIVE AND URGENT CONSIDERATION.

Earl and Duke Streets, Lamarsh Road – and the role of the County Council

20 June 2010

The City and the Environment Agency have worked hard on the technical assessment of feasibility, which they have completed. This shows that our plan would work.

We now urgently need detailed costings of the work required to lower the southern end of Lamarsh Rd. We are looking to the County to provide these. At our meeting in South Hinksey on 24 March 2010, attended by senior representatives from all the agencies concerned, the County Council made a commitment to assess what services lie below that part of the road and to prepare detailed costings of the work that would be needed. This might include digging a test hole. So far as we can discover this has not been done in the intervening 11+ weeks. Considering the urgency, this is extremely disappointing.

We hope that this work will now be done with the utmost urgency.

Go to Library to download our Lamarsh Road proposal and how it would bring relief to the many people whose homes have suffered repeated flooding.

Nicola Blackwood MP visits Earl Street

10 June 2010

Nick Hills, Richard Thurston and Peter Rawcliffe of OFA met our new MP for Oxford West and Abingdon, Nicola Blackwood, in Lamarsh Road on Saturday 5 June. Nicola came to see and hear for herself about the severe and recurrent flooding of about 60 homes in Earl and Duke Streets, the reasons for it – and what OFA has proposed to reduce the risks of further flooding here.

We are delighted that Nicola has said she will support this initiative which could bring relief to many households. She is writing to the Environment Agency asking for details of the cost/benefit analysis, which is currently under way, as soon as it is completed. She will then help us to press for funding and urgent action with the three authorities involved: City, County and Environment Agency.

Earl and Duke Streets

31 January 2010

Work has begun on the next stage to help Earl and Duke Streets, Oxford. Thames Water, in conjunction with Oxfordshire County Council, is connecting gullies in Earl Street into the existing underground pumps so flood water can be pumped away more quickly. This is being done by connecting the pump chamber to a chamber in Lamarsh Road (Oriel Mews), which is, in turn, to be connected to the main run of surface water gullies in Earl Street.

Earl and Duke Streets

15 September 2009

The Earl Street/Duke Street Area Working Party is bearing fruit. This inter-agency group was established in response to a suggestion from OFA, quickly taken up by the EA and then taken forward by the agencies involved and OFA, led by John Copley of Oxford City.

Work has now begun. Engineers working for Thames Water are installing Penstock valves in each street. The Duke Street valve has already gone in and another is about to go in in Earl Street. The valves will be operated, if flooding threatens, to isolate the drains north of the Botley Road at this point from those in Earl and Duke Streets to the south, relieving the pressure on the drains there which are easily overwhelmed.

Further work, by Oxford City, will connect the rainwater gullies along both streets into the existing large underground pumps at the southern end, which pump into the meadow beyond.