A £250M London flood alleviation scheme has been delayed due to a construction clash with Tideway.
The planning application for Thames Water’s Counters Creek flood alleviation scheme has not been submitted because of a clash in schedule with the Tideway construction programme at the Grade-II listed Cremorne Wharf site.
The Counters Creek storm relief sewer will address sewer flooding in west London and was expected to be submitted for planning approval earlier this year.
Current proposals show a 5km long, 4m wide storm relief sewer system that would connect to an existing sewer and collect excess storm water. The water would then flow into the Thames Tideway Tunnel at its Cremorne Wharf site in Lots Road, Fulham, once the storm had passed.
Work for the storm relief sewer would go out to tender rather than automatically to Thames Water’s eight20 joint venture with Costain, Atkins and Black & Veatch.
But the planning application has been held back as there is not an alternative drive site for the tunnel boring machine.
“The planning application for the strategic sewer element of the Counters Creek scheme was not submitted when it became clear that it was not practical for the project to utilise the Cremorne Wharf site at the same time as the Tideway Project,” said a spokesperson for Thames Water.
“In the absence of any alternative drive site, this created a delay, which we are using to review all elements of the scheme, including evidence of the benefits from the 869 FLIPs [small pumps to get rid of household sewage and rainwater] that have already been installed, additional modelling of the network and the potential impacts from future developments planned in the catchment.”
Part of the scheme includes local sewer improvements and sustainable drainage systems to reduce rainwater flooding sewers, which are unaffected by the planning delay. Tideway will use the Cremorne Wharf site to control discharges from the Lots Road Pumping Station sewer overflow into the River Thames.
Existing plans show four other locations have been identified by Thames Water where the new storm relief sewer would intercept the existing sewer. However, the Cremorne Wharf location is the main drive site.
Work had been due to start at the site this year and finish in 2020. Tideway declined to comment.
Other proposed work sites
- Land adjacent to Talgarth Road and Trevanion Road, Hammersmith
- Maclise Road car park and woodland, adjacent to Kensington Olympia
- Holland Villas Road at its junction with Lower Addison Gardens
- Car park at Tesco Superstore, Shepherd’s Bush Road