As part of its efforts to provide safe and eco-friendly sewage networks that meet the needs of residential and commercial areas around Qatar, the Public Works Authority ‘Ashghal’ announces completion of construction and start of operation of the sewage network in the inner Doha areas (Package 1), including Al Muntazah, Rawdat Al Khail Street, and New Slata up to Al Hilal area along C-Ring Road.
On this occasion, Eng. Ali Mostafawi from the Drainage Networks Projects Department at Ashghal stated that the sewage network, which was built about twenty to thirty years ago in the interior areas (Inner Doha) with diametres between 150mm and 200 mm, has been upgraded to start with a minimum of 300mm up to 600mm diametre, which will help avoid long-term leaks and will also contribute to reducing maintenance costs.
Eng. Ali Mostafawi explained that the project included improving the conveyance capacity of 24.5 km of main sewage pipelines, constructing 855 additional main sewage manholes (with diametres of 1200 and 1500 mm), in addition to developing approximately 12 km of house connections to serve about 1,277 plots in the areas of Al Muntazah, Rawdat Al Khail Street, New Slata, up to Al Hilal. The works aimed to enhance the efficiency of the sewage network in a safe and eco-friendly manner and to protect the soil and groundwater from pollution.
Eng. Ali Mostafawi also pointed out that Ashghal took into account the expected increase in the population density during the 2022 World Cup events in terms of the number of residents in hotels and all places designated to serve visitors, and accordingly, the sewage network was renewed to accommodate the expected increase in the quantities of wastewater flows during this period.
As part of its efforts to support local manufacturers and locally made products, the Public Works Authority was keen to supply all types of raw materials used in this project through Qatar Primary Materials Company (QPMC) to be 100% local materials such as rubble, coarse sand, fine sand, in addition to other materials such as ready-mix concrete, asphalt materials for roads, glass reinforced fiber pipes (GRP liner used for corrosion protection at inner face of the manhole), water proofing materials for these rooms (protective panels, main insulators and coatings), and steel reinforcement.
It is worth noting that the Public Works Authority was keen to speed up the pace of project implementation, as the project works were completed ahead of schedule. Adherence to all safety precautions at work sites contributed to achieving three million working hours without loss-time injuries.