Dubai Municipality - Dubai Strategic Sewerage Tunnel (DSST)
Dubai Municipality is planning to undertake the construction of deep sewer tunnels and sewage treatment plants across the emirate of Dubai, UAE.
The project is designed to transform the existing sewerage system from a pumped system to a gravity system, involving the decommissioning of current pump stations. The project aims to provide a sustainable, innovative, and reliable service for future generations.
The project is also known as the Deep Tunnels Portfolio, the scheme will be developed as a public-private partnership (PPP) initiative and will involve developing assets across the city of Dubai and Hatta.
The project's comprehensive objectives include expanding the total sewage treatment capacity by 1 million cm/d, adding 1.4 million cm/d of sewage and stormwater relief capacity, catering to an increased population of 6.3 million by 2040, introducing an additional 2.5 million cm/d of sewage conveying system capacity, and reducing dependency from 70 pumping stations to just 2 terminal pumping stations.
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.
The project has been initially planned to be developed in Bur Dubai (50km) and Deira (25km) due to a change in scope the project is now being developed in Hatta, Warsan, and Jebel Ali.
Packages under the project:
a. Two main gravity tunnel packages, J1 and J2, will cover the conveyance of sewage to the Jebel Ali Sewage Treatment Plant
b. Package W will encompass the gravity tunnel, Terminal Pumping Station (TPS), and feeder links for the Warsan STP.
J1, J2, and W package will be implemented through design-build-finance-operate-maintain (DBFOM) Public-Private Partnership (PPP) models with concession periods ranging from 25 to 35 years.
Package J3 will focus on the construction of smaller collector feeder lines for the Jebel Ali tunnels. This package will be implemented under a design-build-finance (DBF) PPP model, featuring a concession period spanning 25 to 35 years.
The project is also named as the "Development of the Century" .
The US$22,100 million project includes the following:-
1. Construction of two sets of deep tunnels terminating at two terminal pump stations at Warsan and Jebel Ali STPs
2. Construction of a conventional sewage and drainage collection system and STP at Hatta
3. Construction of recycled water distribution systems connected to the STPs
4. Construction of pumping stations
5. Construction of sewer links
6. Civil works
7. Construction of associated facilities
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13 April 2025
The request for proposal (RFP) has been issued for the Package J1 North & Tunnel Pumping Station and Package W Warsan Tunnels, TPS & Links projects and the bid submission deadline is on September 30, 2025. Jacobs is working as the design consultant.
11 February 2025
Package J1, J2, J3, and W: The following companies have been prequalified as lead members of potential consortiums that can bid for the developer contract: Etihad Water & Electricity subsidiary, Itochu Corporation, Besix and Vision Invest. Other companies have been prequalified as technical members.
08 January 2025
Package J1, J2, J3 and W: The list of prequalified developers will be announced before the end of January 2025.
18 December 2024
Package J1, J2, J3 and W: The request for qualification (RFQ) documents for developer contract are under evaluation and the client is expected to announce the prequalified developers by the first quarter of 2025. (Source: MEED)
30 October 2024
Package J1, J2, J3 and W: The request for qualification(RFQ) documents for developer contract have been submitted and the following companies have submitted the documents. Abrdn Investcorp Infrastructure Investments Manager, Besix, China Railway Construction Corporation, China Railway Engineering Group, China State Construction Engineering Corporation, Itochu, Plenary, Samsung C&T, Vision Invest and WeBuild. (Source: MEED)
22 October 2024
Package J1, J2, J3 and W: The request for qualification(RFQ) submission deadline for developer contract has been further extended to October 28, 2024. (Source: MEED)
09 October 2024
Package J1, J2, J3 and W : Marubeni Corporation, Itochu, Plenary Group, Besix, China Railway Engineering Corporation , China Harbour Engineering Company and some companies from Israel are likely to submit the statements of qualifications documents for developer contract. (Source: MEED)
02 September 2024
Package J1, J2, J3 and W : The request for qualification(RFQ) submission deadline for developer contract has been further extended to October 21, 2024. (Source: MEED)
07 August 2024
Jebel Ali Strategic Sewerage Tunnel: Package J1 & J2 : The following companies have been prequalified to submit the main contract bid. Acciona, Besix Construct LLC, China Harbour Engineering Company, China Railway Group Limited, China State Construction Engineering Corporation, Daewoo Engineering & Construction Company, Dogus Insaat Ve Ticaret AS, FCC Construction, JV of Archirodon Construction and BESSAC, JV of China Civil Engineering Construction Corporation, Shanghai Tunnel Engineering Company and China Railway 14th Bureau Group Corporation, JV of Gülermak and DETech Contracting LLC, JV of National Marine Dredging Company, Afcons Infrastructure Limited and & ITD Cementation India Limited, JV of The Arab Contractors, Darwish Engineering Emirates LLC and AqualiaMACE Contracting Operation & General Maintenance, Larsen & Toubro, Porr Bau GmbH, Power China, Samsung C&T, SK Ecoplant, Strabag, Petrojet and Webuild. Jebel Ali Strategic Sewerage Tunnel: Package J3: The following companies have been prequalified to submit the main contract bid. Acciona, Alghanim International General Trading and Contracting, China Railway Group Limited, China State Construction Engineering Corporation, Daewoo Engineering & Construction Company, DETech Contracting, JV of Archirodon Construction and BESSAC, JV of China Civil Engineering Construction Corporation, Shanghai Tunnel Engineering Company and China Railway 14th Bureau Group Corporation, JV of Gülermak and DETech Contracting LLC, JV of International Foundation Group and General Construction Co, JV of Nael Construction & Contracting and Concord for Engineering and Contracting, JV of National Marine Dredging Company, Afcons Infrastructure Limited and & ITD Cementation India Limited, Mapa Insaat, Mohammed Abdulmohsin Al Kharafi & Sons, Porr Bau GmbH, Power China, Strabag, Tecton Engineering & Construction and Petrojet.
25 July 2024
Package J1, J2, J3 and W : The request for qualification (RFQ) for developer contract has been issued and the submission deadline is due on September 5, 2024. (Source: MEED)
15 July 2024
Jebel Ali Strategic Sewerage Tunnel : The request for qualification (RFQ) documents are under evaluation for package J1, J2 and J3.
06 May 2024
J1, J2, J3, and W: For Package J1 and W, Besix has submitted bids in response to the Request for Qualification. For other packages, the bids have been submitted, and we are in the process of identifying the bidders.
14 March 2024
J1, J2, J3, and W: The request for qualification (RFQ) bid submission deadline has been extended from March 28, 2024 to end of April 2024. (Source: MEED)
28 February 2024
J1, J2, J3, and W: The request for qualification (RFQ) bid submission deadline has been extended from February 26, 2024 to March 28, 2024. (Source: MEED)
12 February 2024
J1, J2, J3, and W: The request for qualification (RFQ) was issued on February 5, 2024, and the bid submission deadline is on February 26, 2024.
11 February 2024
The client is expected to launch the prequalification process in the second quarter of 2024. (Source: MEED)
17 January 2024
Warsan Strategic Sewerage Tunnel: The Technical Advisory Services tender was issued on January 16, 2024, and the bid submission deadline is on February 5, 2024.
01 November 2023
The Tribe Infrastructure Group has been appointed as the financial adviser and Ashurst has been appointed as legal adviser for the project. (Source: MEED)
13 October 2023
The project management consultancy tender has been re-issued on October 10, 2023, and the bid submission deadline is on October 26, 2023.
10 August 2023
Dubai Municipality has invited firms to express interest in project management consultants (PMC) by August 11, 2023, and the interested firms are expected to submit prequalification forms by August 25, 2023. (Source: MEED)
06 July 2023
The main contract tender is yet to be issued.
01 May 2023
Main contract tender is yet to be issued.
25 January 2023
The main contract tender is yet to be issued.
18 August 2022
The main contract tender is yet to be issued on the Bur Dubai & Deira Strategic Sewerage Tunnel project
17 May 2022
The main contract tender is yet to be issued. The construction is expected to start in 2023 and is expected to be completed by 2030 followed by 100 years of operation.
17 January 2022
The main contract tender for Deira Strategic Sewerage Tunnel project is yet to be issued.
30 November 2021
The main contract tender for Bur Dubai: Strategic Sewerage Tunnel project is yet to be issued.
14 October 2021
The main contract tender for Bur Dubai: Strategic Sewerage Tunnel project is not yet issued and is expected to be issued by the first quarter of 2022.
30 August 2021
The main contract tender is not yet issued on the Bur Dubai & Deira Strategic Sewerage Tunnel project and the time frame for the issue is unknown.
13 June 2021
The main contract tender for Bur Dubai: Strategic Sewerage Tunnel is expected to be issued by August 2021.
25 April 2021
The main contract tender is not yet issued on Bur Dubai: Strategic Sewerage Tunnel.
14 March 2021
The project Deira: Strategic Sewerage Tunnel and Bur Dubai: Strategic Sewerage Tunnel has been delayed as the client was focusing on the delivery of the Jebel Ali stormwater drainage program.
28 January 2021
The main contract tender is not yet issued on the Bur Dubai & Deira Strategic Sewerage Tunnel project and the time frame for the issue is unknown.
15 December 2020
The main contract tender is not yet issued on Bur Dubai: Strategic Sewerage Tunnel and Deira: Strategic Sewerage Tunnel and expected to issue by Q1 2021.
20 October 2020
The main contract tender is not yet issued on Bur Dubai: Strategic Sewerage Tunnel and Deira: Strategic Sewerage Tunnel and expected to issue by 2021.
03 September 2020
The main contract tender is not yet issued on Bur Dubai: Strategic Sewerage Tunnel and Deira: Strategic Sewerage Tunnel and expected to issue by the end of 2020
14 July 2020
The main contract tender is not yet issued on Bur Dubai: Strategic Sewerage Tunnel and Deira: Strategic Sewerage Tunnel and expected to issue by Q4 2020.
03 April 2020
The main contract tender is not yet issued on Bur Dubai: Strategic Sewerage Tunnel and Deira: Strategic Sewerage Tunnel.
20 February 2020
Dubai Municipality is preparing to issue tender documents for the Bur Dubai-strategic sewerage and Deira -strategic sewerage tunnel project by the end of the first quarter of 2020. (Source: MEED)
16 January 2020
Design works are completed on Bur Dubai-Strategic Sewerage Tunnel and Deira-Strategic Sewerage Tunnel.
21 October 2019
The main contract tender is yet not issued on the project on Bur Dubai: Strategic Sewerage Tunnel and Deira: Strategic Sewerage Tunnel
25 July 2019
The main contract tender is yet not issued on the project.
11 June 2019
The main contact tender is expected to be issued by the end of 2019.
15 February 2019
Design works are currently underway and there is no news on the tender.
13 November 2018
Design works are currently underway and the tender is expected to issue in the third quarter of 2019.
05 September 2018
The design works are currently ongoing and there is no news on the tender.
21 June 2018
The design works are currently ongoing and there is no news on the tender.
21 February 2018
Site investigation is almost complete and design works are currently ongoing. No news regarding the tender issue.
21 November 2017
Dubai Municipality starts the geotechnical investigation on the project. The site investigation programme is carried out by the Drainage and Irrigation Department of Dubai Municipality which is expected to take up to nine months. Parsons has also engaged a company to carry out drilling works on 250 boreholes along the sewage network route. The drilling rigs will be equipped with drilling rods, drill bits, excavation tools and various in-situ testing equipment, these rigs will be transported to the locations on the proposed route of the sewerage tunnel and the rigs are expected to stay at each location between two to five days. Once the field works are complete, the results will be evaluated, which will determine the right construction methodologies for the tunnels, link sewers, and shaft excavation.
10 October 2017
The concept design is still ongoing on the project and is expected to complete by Q1 2018.
15 June 2017
KPMG has been appointed to advise the client and assist with the preparation for the project under a PPP model. The project will take 5 years to complete.
18 May 2017
Concept design is still ongoing on the project.
16 August 2016
The feasibility study works are ongoing on the project.
16 May 2016
The consultancy contract has been awarded to Parsons. Parsons scope of work will include feasibility studies, preliminary design, tender preparation and support. Following the appointment of contractors, Parsons Services include feasibility studies, preliminary design, and tender preparation and support, followed by program management of the detailed design and construction phases and supervision of the construction phase of the primary tunnels and pumping station.
26 April 2016
The consultancy bids are still under evaluation and an award is expected by June 2016.
16 February 2016
The consultant has not been appointed for the project.
12 November 2015
Following companies submitted bids for the consultancy contract : *Parsons (US) *Arcadis (UK) *Aecom (US) *Dar al-Handasah (Lebanon) *CH2M Hill (US) *Italconsult (Italy) Market sources indicate that Parsons submitted the lowest price for the consultancy deal. (Source : MEED)
13 October 2015
The bid submission for consultancy services was postponed from September 6, 2015 to October 4, 2015.