The Al-Haer Sewage Treatment Plant is a planned wastewater treatment project in Riyadh, Saudi Arabia, intended to expand sewage treatment capacity and support treated wastewater reuse infrastructure in the region.
Saudi Water Partnership Company selected Miahona Company and Besix as the preferred bidders for the development, operation, and maintenance of the facility. The authority also identified Acciona and Tawzea as reserve bidders for the project.
According to project information, the Miahona-Besix consortium submitted a tariff proposal of $0.5173 per cubic meter, while the Acciona-Tawzea consortium submitted a proposal of $0.6231 per cubic meter.
The project includes the construction of a sewage treatment plant with a planned treatment capacity of 200,000 cubic meters per day. The scope also includes a treated sewage effluent reuse system comprising a 32-kilometre pipeline with a capacity of 400,000 cubic meters per day, treated water storage reservoirs with a combined capacity of 200,000 cubic meters, and an associated pumping station.
The facility is expected to reach commercial operation during the third quarter of 2026. The project forms part of the third phase of Saudi Arabia’s Independent Sewage Treatment Plant programme, for which more than 20 companies were prequalified to participate in the bidding process.
Other Projects
Other than the Al-Haer sewage treatment plant project, Dubai is also advancing its Dubai Strategic Sewerage Tunnels scheme. It has selected groups for the first two packages of the $22bn Dubai Strategic Sewerage Tunnels (DSST) scheme. This comes ahead of announcing formal contract awards. The public-private partnership (PPP) scheme comprises three packages: J, W and Links. It also covers the construction of two sets of deep tunnels termination at pump stations at Warsan and the Jebel Ali sewage treatment plants (STPs). Moreover, it includes over 200 kilometers of sewer links.
Read also: Dubai Municipality Reissues $22bn Tunnels Project Request
Al-Haer Sewage Treatment Plant is Part of the Third Batch Scheme of the ISTP Programme
Al-Haer sewage treatment plant is part of the third batch scheme which comprised of two other projects as the initial third ISTP batch. This include the Khamis Mushait ISTP scheme which will have a 50,000 cm/d capacity and the Riyadh East ISTP scheme with a projected capacity of 150,000 cm/d are also part of the scheme. The contract for the development of the two schemes is yet to be tendered. Originally comprising three schemes with a total capacity of 400,000 cm/d, batch three of the ISTP programme has been expanded. This is done so as to include Haddah ISTP which has a design capacity of 500,000 cm/d, and Arana ISTP, which has a design capacity of 800,000 cm/d. The procurement process of the two schemes will be undertaken separately.
Project Factsheet:
- Project Name: Al-Haer Sewage Treatment Plant (ISTP Batch 3)
- Location: Riyadh, Saudi Arabia
- Estimated Investment Value: Undisclosed
- Project Type: Wastewater treatment plant and treated sewage effluent (TSE) reuse infrastructure
Timeline
- Preferred bidder selection announced by Saudi Water Partnership Company (SWPC)
- Procurement phase completed with competitive tariff submissions
- Construction and development phase underway following bidder selection
- Commercial operation targeted for Q3 2026
- Part of Saudi Arabia’s Phase 3 Independent Sewage Treatment Plant (ISTP) Programme
Site & Scale
- Sewage treatment capacity: 200,000 cubic meters per day (cm/d)
- Treated sewage effluent pipeline length: 32 kilometers
- TSE pipeline capacity: 400,000 cubic meters per day
- Treated water storage capacity: 200,000 cubic meters
- Includes associated pumping station infrastructure
Key Contractors/Stakeholders
- Project Authority: Saudi Water Partnership Company (SWPC)
- Preferred Bidder Consortium: Miahona Company and Besix
- Reserve Bidder Consortium: Acciona and Tawzea
- Preferred tariff proposal: $0.5173 per cubic meter
- Reserve tariff proposal: $0.6231 per cubic meter
Infrastructure Scope
- Construction of a new sewage treatment plant in Riyadh
- Development of treated sewage effluent reuse infrastructure
- Installation of a 32-kilometer treated water transmission pipeline
- Construction of treated water storage reservoirs and pumping facilities
Strategic Objectives
- Expand wastewater treatment capacity in Riyadh
- Increase treated wastewater reuse across the region
- Support sustainable water resource management initiatives
- Advance Saudi Arabia’s Independent Sewage Treatment Plant (ISTP) Programme goals
Current Status
- Miahona-Besix consortium selected as preferred developer, operator, and maintenance provider
- Acciona-Tawzea consortium designated as reserve bidder
- Commercial operation scheduled for the third quarter of 2026
- Project forms part of the expanded third batch of the ISTP Programme
- More than 20 companies were prequalified during the bidding process
- Associated Batch 3 projects include Khamis Mushait ISTP (50,000 cm/d) and Riyadh East ISTP (150,000 cm/d)
Leave a Reply