The biggest drainage project in Qatar, with an estimated capital cost of QAR8bn to QAR10bn(US$2.74bn), will be tendered this year.
According to the Public Works Authority (Ashghal), tenders for the Inner Doha Re-sewerage Implementation Strategy will be invited by 2Q2013.
The project will be offered to international companies since techniques more advanced than those that local companies can provide are required, said Engineer Nasser Ghaith Al Kuwari, Director of Drainage Projects Department at Ashghal. Local companies can play a role by forming partnerships with international companies.
The drainage system is scheduled to be complete by 2019, with construction work starting at the end of this year.
The present drainage system of Doha is deemed insufficient to handle a growing population that will reach 3m by 2050.
The new project includes construction of a major wastewater treatment plant to the south of Doha, deep-trunk sewer tunnel and pumping stations working for the next 50 years.