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Dubai Municipality has invited companies to prequalify for a contract to provide technical advisory services for the development of a public-private partnership (PPP) model for Dubai’s Warsan sewage treatment plant (STP).

Companies have until 26 February to respond to the request.

According to an industry source, the current request concerns a project to rehabilitate and expand the existing Warsan STP using a PPP model.

Separately, the municipality is understood to be looking at an additional phase to develop the Jebel Ali STP under a separate PPP contract.

The Warsan STP PPP technical advisory scope has been divided into several stages, which include a preliminary study,  preliminary and final design, the preparation of tender documents, prequalification and tendering, and construction supervision.  

Last year, Dubai Municipality revived a project known as the Deep Tunnels Portfolio, which involves developing assets across Dubai and Hatta.

It covers constructing two sets of deep tunnels terminating at two terminal pump stations located at STPs in Warsan and Jebel Ali. A conventional sewage and drainage collection system and STPs will be built in Hatta.

The scheme also includes recycled water distribution systems connected to the STPs.

Dubai’s Executive Council approved the project in June last year and said it would require an investment of about AED80bn ($22bn).

It added that the project has been designed to serve the needs of the Dubai population for the next 100 years in alignment with the Dubai Economic Agenda D33 and the Dubai Urban Plan 2040.

Dubai Municipality appointed advisers for the overall scheme last year. It selected Abu Dhabi-headquartered Tribe Infrastructure Group as its financial adviser, while UK-based Ashurst was appointed legal adviser.