Glasgow (UK), September 24 (QNA) - For the second year in a row, the Public Works Authority's (Ashghal) Doha South Sewage Infrastructure Project has received the Gold Award from the British Royal Society for the Prevention of Accidents (RoSPA). This award acknowledges the project's continued outstanding occupational health and safety performance during the year 2018, in addition to adopting the best risk management practices effective in all aspects of the project implementation. 

 The award was received at a ceremony held in Glasgow, UK. Ashghal said that the award of this project for the second consecutive year is a tangible proof of its continuous efforts in the field of occupational health and safety to ensure that all projects are safely implemented, considering that it is a result of the constant high performance achieved by this project since its commencement, through adopting a successful strategy in this field as well as the commitment of all those involved in the project starting from Ashghal, the management and supervision consultant, the contractor, to the construction workers on site. 

 Ashghal has completed the construction works of the Main Trunk Sewer (MTS) as part of the Doha South Sewage Infrastructure Project. The MTS consists of three segments, Eastern, Northern and Western, with a total length of approximately 16 kilometres. The project also comprises of approximately 24 kilometers of lateral sewer tunnels which are being completed using 170 shafts at different locations within Doha South. 

These lateral sewers will convey sewage flows from the centre and south of Doha to the three segments of the MTS, which in turn will convey these flows to the existing Doha South Sewage Treatment Plant through a 40 metres deep foul sewerage pumping station. An important feature of the project is that the gravity MTS will reduce the environmental impacts by fully controlling the odours at the sewage treatment works and conveying system, and reduce other environmental problems arising from sewage overflow due to excess hydraulic pressure on the existing drainage network, where sewage flows exceed its absorptive capacity. 

 The project is designed to serve areas in the south of Doha and the expected population growth, and can be linked to future infrastructure projects. Once completed, the project will enable the decommissioning of more than twenty old pumping stations currently located in the residential and commercial areas in the south of Doha. (QNA)