Contractors have been invited to prequalify for a major sewage project.

The Public Works Authority (Ashghal) has invited contractors to submit prequalification documents by 26 April for the planned project to build a treated sewage effluent (TSE) pumping station and transmission pipeline.

The project, known as Project C762, will involve the construction of a 120,000 cubic metres a day (cm/d) TSE pumping station and a 68km transmission pipeline, starting at the existing Doha South sewage treatment works and along to the Salwa International highway and a new TSE storage lagoon. TSE extension lines will connect the existing TSE networks.

The project is part of the government's efforts upgrade and expand its sewerage infrastructure. MEED reported in February that Ashghal had invited consultants to submit proposals for a major sewage public-private partnership (PPP) scheme.

The project is expected to cover the design, build, operate and transfer (DBOT) of three sewage treatment plants (STPs) and associated infrastructure in the Al-Wakrah and Al-Wukair areas of Doha.

The financial firms will submit proposals as lead adviser in teams also containing technical and legal advisers.

The project is part of Ashghal’s plans to overhaul and expand the country’s sewage infrastructure. MEED reported in October last year that the works authority had appointed the UK’s Mott MacDonald as project manager for the planned Musaimeer pumping station project.

Mott MacDonald had submitted the lowest bid for the project management deal in January, and after a lengthy evaluation period was awarded the contract.