Dubai extends $22bn tunnels investor prequalification

28 August 2024

Dubai Municipality has set a new deadline for firms to submit their statements of qualifications (SoQs) for the contracts to develop and operate various packages of the $22bn Dubai Strategic Sewerage Tunnels (DSST) project.

According to a source close to the project, interested companies have until 21 October to submit their SOQs, which is six weeks later than the initial submission date of 5 September.

The investor prequalification process for the scheme, which is being procured on a public-private partnership (PPP) basis, comes after the client prequalified engineering, procurement and construction (EPC) contractors that can partner with the developers or investors to bid for the contracts.

DSST packages

Under the current plan, the $22bn DSST project is broken down into six packages, which will be tendered as PPP packages with concession periods lasting between 25 and 35 years.

The first package, J1, comprises Jebel Ali tunnels (North) and terminal pump stations (TPS). The tunnels will extend approximately 42 kilometres, and the links will extend 10km. 

The second package, J2, covers the southern section of the Jebel Ali tunnels, which will extend 16km and have a link stretching 46km.

W for Warsan, the third package, comprises 16km of tunnels, TPS and 46km of links.

J3, the fourth package, comprises 129km of links.

J1, J2, W and J3 will comprise the deep sewerage tunnels, links and TPS (TLT) components of the overall project.

J1, J2 and W will be procured under a design-build-finance-operate-maintain model with a concession period of 25-35 years.

J3 will be procured under a design-build-finance model with a concession period of 25-35 years. Once completed, Dubai Municipality will operate J3, unlike the first three packages, which are planned to be operated and maintained by the winning PPP contractors.  

The project’s remaining two packages entail the expansion and upgrade of the Jebel Ali and Warsan sewage treatment plants (STPs).

The prequalified EPC companies for packages J1, J2 and W are:

  • Acciona Construccion (Spain) – Dubai branch
  • Besix Construct (Belgium)
  • China Harbour Engineering (China)
  • China Railway Group (China)
  • China State Construction Engineering Corporation (China)
  • Daewoo Engineering & Construction (South Korea) 
  • Dogus Insaat VE Ticaret Anonim Sirketi (Turkiye) – Abu Dhabi
  • FCC Construcccion (Spain)
  • Archirodon Construction (Overseas) Company (Greece) / BESSAC (France)
  • China Civil Engineering Construction Corporation – Dubai Branch / Shanghai Tunnel Engineering Company (STEC) / China Railway 14th Bureau Group Corporation 
  • Gulermak Agir Sanayi Insaat (Turkiye) / DETech Contracting (local)
  • National Marine Dredging Company (local) / Afcons Infrastructure (India) / ITD Cementation India 
  • The Arab Contractors (Osman Ahmed Osman & Company, Egypt) / Darwish Engineering Emirates (local) / AqualiaMACE Contracting Operation & General Maintenance (local)
  • Larsen & Toubro (India)
  • Porr (Austria)
  • Power Construction Corporation of China (China) – Dubai branch
  • Samsung C&T Corporation (South Korea) – Dubai Branch
  • SK Ecoplant (South Korea) 
  • Strabag Dubai (Austria)
  • The Petroleum Projects & Technical Consultation Company (Petrojet) – Egypt
  • Webuild  (Italy)

EPC companies that have been prequalified to bid for package J3 are:

  • Acciona Construccion (Spain) – Dubai branch
  • Alghanim International General Trading & Contracting (Kuwait) 
  • China Railway Group (China)
  • China State Construction Engineering Corporation (China)
  • Daewoo Engineering & Construction (South Korea)
  • DETech Contracting
  • Archirodon Construction (Overseas) Company (Greece) / BESSAC (France)
  • China Civil Engineering Construction Corporation (China) – Dubai branch / Shanghai Tunnel Engineering Company (STEC) / China Railway 14th Bureau Group Corporation 
  • Gulermak Agir Sanayi Insaat (Turkiye) / DETech Contracting (local) 
  • International Foundation Group (IFG, local) / General Construction Company (local)
  • Nael Construction & Contracting (UAE) / Concord for Engineering & Contracting (Egypt) – Dubai branch
  • National Marine Dredging Company (local) / Afcons Infrastructure (India) / ITD Cementation India 
  • Mapa Insaat Ve Ticaret (Turkiye)
  • Mohammed Abdulmohsin Al-Kharafi & Sons (Kuwait)
  • Porr (Austria)
  • Power Construction Corporation of China – Dubai branch
  • Strabag (Austria)
  • Tecton Engineering & Construction (local)
  • The Petroleum Projects & Technical Consultation Company – Petrojet (Egypt)

According to a source close to the project, packages J1 and W will be tendered together as separate contracts first, followed by J2 and J3, with the requests for proposals (RFPs) to be issued sequentially, staggered around six to 12 months apart.

The packages for the expansion and upgrade of the Jebel Ali and Warsan STPs will be procured in a process separate from the four DSST-DLT components.

The overall project will require a capital expenditure of roughly AED30bn ($8bn), while the whole life cost over the full concession terms of the entire project is estimated to reach AED80bn.

Sustainable project

The project aims to convert Dubai’s existing sewerage system from a pumped system to a gravity system by decommissioning the existing pump stations and providing “a sustainable, innovative, reliable service for future generations”.

Dubai currently has two major sewerage catchments. The first in Deira is Warsan, where the Warsan STP treats the flow.

The second catchment is in Bur Dubai, where the wastewater is treated at the Jebel Ali STP.

According to a source close to the project, the DSST will replace 120 pump stations, saving approximately 100 gigawatt-hours of electricity annually. 

https://image.digitalinsightresearch.in/uploads/NewsArticle/12422341/main.jpg
Jennifer Aguinaldo
Related Articles
  • Adnoc builds long-term oil and gas production potential

    7 April 2026

     

    Between 2023 and 2024, Abu Dhabi National Oil Company (Adnoc Group) spent an estimated $37bn on projects critical to achieving its upstream targets: increasing oil production capacity to 5 million barrels a day (b/d) by 2027 and attaining gas self-sufficiency by the end of the decade.

    The state energy company spent more than $22.5bn in 2023 alone, marking the highest annual oil and gas project spending on record in the UAE. The Hail and Ghasha sour gas development – accounting for approximately $17bn – remains the single-largest contract award in the country’s hydrocarbons sector.

    A slowdown in capital expenditure (capex) following two years of elevated spending is therefore in line with expectations. While engineering, procurement and construction (EPC) contract awards for upstream projects declined in 2025 and into this year, Adnoc has still committed close to $10bn over the past 15 months.

    The largest award during this period came from Adnoc Offshore, which let contracts worth $7.5bn for three EPC packages under the Lower Zakum Long-Term Development Plan (LTDP-1). Spain’s Tecnicas Reunidas and Abu Dhabi-based NMDC Energy and Target Engineering Construction Company were selected last February to execute the works.

    The Lower Zakum field, located 65 kilometres northwest of Abu Dhabi, is majority-owned by Adnoc Offshore (60%). Other stakeholders include an Indian consortium led by ONGC Videsh (10%), Japan’s Inpex (10%), China National Petroleum Corporation (10%), Italy’s Eni (5%) and France’s TotalEnergies (5%).

    Adnoc Offshore aims to increase production capacity at Lower Zakum to 520,000 b/d by 2027 and sustain that level through 2034.

    Offshore contracts in 2026

    So far this year, Adnoc Offshore has awarded contracts for two key projects: the Satah Al-Razboot (Sarb) deep gas development and the expansion of the Nasr oil field.

    Adnoc achieved final investment decision (FID) on the Sarb project in January and awarded the main EPC contract to US-based McDermott International. The contract is estimated to be worth around $500m, sources told MEED.

    The project is expected to deliver 200 million cubic feet a day (cf/d) of gas by the end of the decade – enough to power more than 300,000 homes.

    The scope includes the EPC of an offshore wellhead tower with four gas production wells, which will be connected to Das Island for processing through Adnoc Gas facilities. Works also include the installation of pipelines and intra-field connections linking the Sarb field to Das Island.

    Also in January, Adnoc Offshore awarded McDermott a $942m contract for the Nasr-115 project, which will increase production capacity at the Nasr offshore field to 115,000 b/d. The field is located about 130km northwest of Abu Dhabi.

    McDermott’s scope covers full EPCI services for two topside structures, a new manifold tower, a jacket, a bridge, associated pipelines, subsea cables and brownfield modifications.

    Strategic projects in queue

    Over the next 12-18 months, Adnoc’s upstream spending is expected to shift from meeting near-term production targets –now largely within reach – to building longer-term capacity beyond 2030.

    Following $1.3bn in EPC awards in 2024 for the Upper Zakum expansion to 1.2 million b/d, Adnoc Offshore is advancing the next phase, which will increase capacity to 1.5 million b/d.

    Located 84km offshore, Upper Zakum is the world’s second-largest offshore oil field. Adnoc Offshore has divided the EPC scope into three packages, with contractors submitting commercial bids for the UZ1.5MMBD project in February.

    Adnoc Offshore is also progressing the Umm Shaif gas cap and surface pressure boosting project, aimed at increasing gas production by 550 million cubic feet a day (cf/d) and condensate output by 50,000 b/d. About 520 million cf/d of additional gas is expected to be fed into Adnoc’s sales gas network.

    The first phase of the project has been split into three EPC packages:

    • Offshore package 1: fabrication of a 30,000-tonne gas compression system
    • Offshore package 2: fabrication of a 30,000-tonne gas compression system
    • Onshore package: EPC of gas inlet and processing systems at Das Island

    Adnoc Offshore is currently evaluating commercial bids submitted in February for these packages.

    https://image.digitalinsightresearch.in/uploads/NewsArticle/16285814/main.gif
    Indrajit Sen
  • Contractor wins Oman housing substation contract

    7 April 2026

    Oman’s Public Authority for Social Insurance has awarded a contract for the supply, installation, execution and maintenance of a main power substation for its affordable housing project.

    The contract was awarded to Kuwait-based Al-Ahleia Switchgear Company.

    The project comprises a 400/132/11kV main substation for the Affordable Housing Project, known locally as Al-Masaken Al-Muyassara.

    The tender was announced last November, with the bid envelopes opened on 16 December 2025.

    Al-Ahleia Switchgear submitted another bid in March for a contract to build three 132/11kV main transformer stations for Kuwait’s Public Authority for Housing Welfare (PAHW).

    As reported by MEED, the company’s price of KD10.5m ($34.1m) was the lowest of two offers for the engineering, procurement and construction (EPC) contract.

    Separately, in December, Al-Ahleia Switchgear submitted the lowest bid of KD33.9m ($110.3m) for a contract to build a 400/132/11 kV substation at the South Surra township for Kuwait’s PAHW.

    The bid was marginally lower than the two other offers submitted by Saudi Arabia’s National Contracting Company (NCC) and India’s Larsen & Toubro.


    READ THE APRIL 2026 MEED BUSINESS REVIEW – click here to view PDF

    Economic shock threatens long-term outlook; Riyadh adjusts to fiscal and geopolitical risk; GCC contractor ranking reflects gigaprojects slowdown.

    Distributed to senior decision-makers in the region and around the world, the April 2026 edition of MEED Business Review includes:

    > GCC CONTRACTOR RANKING: Construction guard undergoes a shift
    To see previous issues of MEED Business Review, please click here
    https://image.digitalinsightresearch.in/uploads/NewsArticle/16285335/main5555.jpg
    Mark Dowdall
  • UAE reviews $1.63bn fourth federal road project

    7 April 2026

    UAE authorities on 6 April unveiled details of the AED6bn ($1.63bn) fourth federal corridor scheme, a major highway programme aimed at boosting inter-emirate connectivity, increasing road capacity and easing congestion.

    The project comprises a 68-kilometre corridor with 10 major interchanges, four flyovers and six to eight lanes in each direction.

    Officials provided technical updates on the corridor, including revised connection points and coordination with local authorities to finalise route alignments in line with broader development plans.

    Suhail Mohamed Al-Mazrouei, minister of energy and infrastructure, said the programme underscores the central role of infrastructure in the UAE’s development agenda and competitiveness. He was speaking while chairing the first meeting of the UAE Infrastructure and Housing Council this year.

    The council also reviewed progress on federal infrastructure initiatives aimed at improving transport efficiency and strengthening coordination between federal and local authorities.

    Al-Mazrouei said the next phase will focus on accelerating the delivery of high-impact projects to enhance transport system performance and support the shift towards smart and sustainable mobility in line with population growth and urban expansion.

    The council also assessed progress on linking Ajman to the third and fourth federal corridors, which is expected to provide alternative routes, improve traffic flow and further enhance mobility between the emirates.

    On public transport, the council reviewed a study on transport links between Dubai, Sharjah and Ajman to address rising commuting demand.

    The proposed plan includes 10 priority routes incorporating bus rapid transit and dedicated lanes, with connections to key hubs such as the Dubai Metro and city centres.


    READ THE APRIL 2026 MEED BUSINESS REVIEW – click here to view PDF

    Economic shock threatens long-term outlook; Riyadh adjusts to fiscal and geopolitical risk; GCC contractor ranking reflects gigaprojects slowdown.

    Distributed to senior decision-makers in the region and around the world, the April 2026 edition of MEED Business Review includes:

    > GCC CONTRACTOR RANKING: Construction guard undergoes a shift
    To see previous issues of MEED Business Review, please click here
    https://image.digitalinsightresearch.in/uploads/NewsArticle/16285296/main.jpg
    Yasir Iqbal
  • Kingdom Holding Company signs Riyadh project deal

    7 April 2026

    Saudi Arabia’s Kingdom Holding Company has signed an agreement with Sumou Real Estate Company under which Sumou will manage the development, marketing and sale of a 3-million-square-metre land plot in Riyadh.

    The scheme is expected to generate about SR4bn ($1bn) in total sales.

    In a Tadawul disclosure, Kingdom Holding Company said its subsidiaries, Kingdom Real Estate Development Company and Trade Centre Company, have appointed Sumou as the exclusive development manager for the site.

    The project is scheduled to be implemented over 36 months, starting once the masterplans are approved by the relevant authorities.

    In a separate stock exchange statement, Sumou said it will be paid 6.5% of total infrastructure development costs and 2.5% of project sales, in addition to the brokerage commission paid by buyers.

    Kingdom Holding Company said the agreement aligns with its long-term strategy for its Riyadh landbank, which originally totalled around 20 million sq m and is being developed in phases.


    READ THE APRIL 2026 MEED BUSINESS REVIEW – click here to view PDF

    Economic shock threatens long-term outlook; Riyadh adjusts to fiscal and geopolitical risk; GCC contractor ranking reflects gigaprojects slowdown.

    Distributed to senior decision-makers in the region and around the world, the April 2026 edition of MEED Business Review includes:

    > GCC CONTRACTOR RANKING: Construction guard undergoes a shift
    To see previous issues of MEED Business Review, please click here
    https://image.digitalinsightresearch.in/uploads/NewsArticle/16284668/main.jpg
    Yasir Iqbal
  • Saudi Arabia’s Jubail industrial city hit by missile debris

    7 April 2026

    Explosions were reported in Saudi Arabia’s Jubail industrial city on 7 April. Saudi authorities said the country’s air defence systems intercepted seven ballistic missiles targeting the Eastern Province, with debris landing near energy facilities, primarily in Jubail.

    Jubail is one of the world’s largest petrochemical production hubs, with an annual output of about 60 million tonnes, accounting for an estimated 6% to 8% of global supply.

    The incident places renewed focus on the kingdom’s flagship petrochemical cluster, where majority state-owned Saudi Basic Industries Corporation (Sabic) is a key investor.

    Jubail also hosts major downstream oil, gas and petrochemical assets operated by Saudi Aramco, US-based Dow and France’s TotalEnergies, underscoring the industrial zone’s international significance.

    Saudi officials said damage assessments are ongoing.

    The developments follow an Israeli strike on 6 April targeting a major petrochemical complex in Iran’s southern Asaluyeh region, described as the country’s largest industrial hub.

    Separately, authorities closed the King Fahd Causeway – the main bridge linking Saudi Arabia and Bahrain – early on 7 April as a precaution amid heightened security concerns.

    The King Fahd Causeway Authority said in a post on X that vehicle movement had been “suspended as a precautionary measure” due to Iranian attacks targeting Saudi Arabia’s Eastern Province.

    The 25-kilometre bridge is Bahrain’s only road link to the Arabian Peninsula.

    US President Donald Trump has issued an ultimatum for Iran to reopen the Strait of Hormuz and threatened to bomb Iranian power plants and bridges if Tehran does not comply by 8pm EDT on 7 April.


    READ THE APRIL 2026 MEED BUSINESS REVIEW – click here to view PDF

    Economic shock threatens long-term outlook; Riyadh adjusts to fiscal and geopolitical risk; GCC contractor ranking reflects gigaprojects slowdown.

    Distributed to senior decision-makers in the region and around the world, the April 2026 edition of MEED Business Review includes:

    > GCC CONTRACTOR RANKING: Construction guard undergoes a shift
    To see previous issues of MEED Business Review, please click here

     

    https://image.digitalinsightresearch.in/uploads/NewsArticle/16283711/main2424.jpg
    Indrajit Sen