Battersea Power Station - Foul Water Connection

In Battersea, the Barhale team were able to draw upon their wealth of tunnelling experience, to develop innovative solutions to mitigate un-foreseen changes to the scope of works. Their proactive approach to potential problems saved the client time and money in delivering a very tight programme.

Following the excavation of the reception cofferdam; designed to enable retrieval of the tunnelling boring machine (TBM), it was established that the existing sewer was not in the location shown on the drawings. Also, the area surrounding the sewer was overlaid by a dense zone of utility services including an Extra High Voltage (EHV) trough and large diameter portable water mains; consequently it was no longer possible to retrieve the tunnel boring machine from the cofferdam.