Construction of two outfall pipelines in Doha, Qatar for Lusail Real Estate Development Company. The pipelines serve the storm water discharge of the new northern extension to Doha, Lusail City.

The HDPE pipelines are 1,100 and 1,500 metres in length, with a diameter of 1.4 to 1.8 metres. U-shaped ballast blocks have been used, instead of the traditional O-shape one, to prove a significant increase in efficiency on the Lusail stormwater outfall project. By pouring the concrete into a U-shape instead of an O-shape BAM rmoved the need to bolt the blocks together. It also reduced the dependence on divers. The increased efficiency of this piece of value engineering also meant a reduction in costs.

‘A new city protected from floods.’