meed-logo

line1 line2 line3
SIGN IN / REGISTER

Traffic drives construction underground

3 April 2025

 

On 14 February, Dubai construction was thrust again onto the global stage when Elon Musk, the world’s richest man, announced plans to explore the development of an underground Dubai Loop transportation system, along the lines of the Las Vegas Convention Centre Loop project in the US.

Dubai has typically made headlines globally by constructing the world’s tallest towers. As the city becomes increasingly congested on the surface, it is taking some of its largest construction projects underground.

With Musk’s backing, the Dubai Loop scheme is the most high-profile tunnelling project launched to date. It involves carving a futuristic transport system underneath Dubai. The initial phase of the project is currently being studied by Dubai’s Roads & Transport Authority (RTA) in partnership with The Boring Company, which is owned by Musk. It will cover 17 kilometres (km) and have 11 stations, with the capacity to transport over 20,000 passengers an hour.

The project highlights the importance of expanding underground infrastructure in the Middle East region. This is mostly necessitated by the pressure that rapidly growing cities have put on existing transport and utility networks, particularly in major urban centres such as Dubai, Riyadh and Doha.

Underground opportunities

Projects that involve tunnelling, such as metro rail systems, underground highways and pedestrian walkways, are deemed key enablers in reducing congestion and optimising land use.

The recently completed metro systems in Riyadh and Doha are examples of how underground rail networks can facilitate efficient urban mobility, and more such schemes are planned. 

Without these subterranean projects, cities risk being stuck in a permanent state of gridlock, with longer commute times and decreased productivity. At the same time, tunnelling allows urban planners to integrate sustainable transport solutions, as well as large-scale utilities networks, without disturbing existing cityscapes, thereby enhancing connectivity and economic growth.

These developments signal a major shift in engineering priorities, with regional governments investing in underground transport, sewerage and metro extensions to accommodate their growing populations and infrastructure needs.

While the tower crane-dotted skylines of urban centres in the GCC attract attention, delivering major projects underground is an equally impressive engineering feat. Tunnelling under busy cities requires advanced excavation techniques, careful planning and coordination to avoid disruptions.

More tunnelling work is expected as Dubai takes another significant step forward in tackling its ongoing traffic problems [with] a new metro link

UAE tunnelling projects

Tunnelling work forms a significant portion of the Dubai Metro Blue Line extension. Awarded in December for AED20.5bn ($5.5bn), the project includes 15.5km of underground track and five subterranean stations. When operational in 2029, the Blue Line will significantly expand Dubai’s metro capacity, linking major residential and commercial hubs.

More tunnelling work is expected as Dubai takes another significant step forward in tackling its ongoing traffic problems by starting the procurement process for its next metro link: the Gold Line.

Although the technical details of the project have yet to be revealed, it is expected that tunnels will form a major component of the scheme given that the new line will run through busy urban areas where there is little space to build overground. 

The Gold Line will start at Al-Ghubaiba in Bur Dubai. It will run parallel to – and alleviate pressure on – the existing Red Line, before heading inland to Business Bay, Meydan, Global Village and residential developments in Dubailand.

As a first step, the RTA has sent a request for proposals to companies for the lead consultancy role on the multibillion-dollar project.

The UAE’s Etihad Rail also began a study of the tunnels required for the high-speed railway line connecting Abu Dhabi and Dubai in January. The survey works are ongoing on the Jaddaf and Dusup tunnels that will serve the high-speed rail link. Initial plans for the project include tunnelling works totalling 31km.

Another major tunnelling project in the UAE is the $22bn Dubai Strategic Sewerage Tunnels scheme. The client, Dubai Municipality, is preparing to tender its first packages, which include deep tunnels that will stretch 42km in Jebel Ali and 16km in Warsan.

The project will be delivered under a public-private partnership model, with international consortiums competing for contracts. Once completed, these tunnels will replace the traditional wastewater network, reducing energy consumption and enhancing long-term sustainability.

Saudi schemes

In Saudi Arabia, Riyadh is preparing to expand its metro network with the addition of a Line 7 and an extension to the existing Line 2.

The total length of Line 7 will be about 65km, of which 47km will be underground. The line will have 19 stations, 14 of which will be underground.

The project involves constructing a metro line linking the Qiddiya entertainment city development, King Abdullah International Gardens, King Salman Park, Misk City and Diriyah Gate. 

In March, the Royal Commission for Riyadh City (RCRC) gave consortiums until 15 June to submit their bids for a design-and-build contract for the construction of Line 7.

The planned Line 2 extension is 8.4km long, of which 7.1km is underground, and three out of its five stations will be built underground. The RCRC is expected to award the construction contract this year.

In January, the kingdom also completed the phased roll-out of the Riyadh Metro network. The current network comprises six lines spanning about 176km, of which 74km is constructed underground.

These numbers indicate that over 42% of the overall network is underground, highlighting the growing importance of tunnels in the kingdom’s plans to improve infrastructure in its most densely populated cities.

Tunnelling works are also a key component of the plans to improve the stormwater drainage system in Jeddah, where the municipality is preparing for the construction of the King Abdullah Road-Falasteen Road tunnel.

The three-year scheme involves constructing 5.3km of tunnels with an internal diameter of 7.2 metres using tunnel boring machines (TBMs) and another 3.4km of tunnels with a diameter of 3.5 metres driven by pipe jacking or TBMs.

At the kingdom’s Neom gigaproject, city planners are looking to find solutions to many of the problems faced in existing cities and, as a result, tunnels and large-scale underground utilities corridors are being built at the beginning of the project. For example, the development’s Delta Junction tunnels will serve as a railway junction connecting the Spine infrastructure corridor with the Neom Connector rail link to the Oxagon industrial zone. 

The project involves 26.5km of tunnelling work that will be split into a north and a south lot. The construction works are expected to begin this year as the client is evaluating the revised proposals submitted by firms in November last year.

Kuwait Metro will feature extensive tunnelling … ensuring minimal disruption to existing roads while integrating with future transport networks

Further tunnel projects

Beyond the Gulf, Egypt has a long history of tunnelling projects, as it has had to deal with crippling congestion and urban overcrowding for decades. In the 1980s, work was completed on two major projects that involved tunnelling: the first phase of the Cairo Metro system and the Greater Cairo wastewater project, which involved the construction of sewage tunnels on the east and west banks of the Nile. 

Today, Cairo’s tunnelling projects include the Cairo Metro Line 4 project. Spanning 42km with 39 stations, it involves over 20km of tunnels.

Meanwhile, in Morocco, national railway operator L’Office National des Chemins de Fer (ONCF) is constructing a tunnel project in Rabat.

In February, ONCF announced a 3.3km tunnel to be constructed under the Bou Regreg river at an estimated cost of MD1.4bn ($140m). The tunnel will connect the Sale and Agdal stations in an effort to alleviate traffic.

Similarly, the long-awaited Kuwait Metro will feature extensive tunnelling to navigate the dense urban fabric of Kuwait City, ensuring minimal disruption to existing roads while integrating with future transport networks. 

Qatar’s expansion of Doha Metro, meanwhile, requires additional underground infrastructure to connect developing areas and support the country’s vision for a comprehensive public transport system. 

Mecca Metro, already serving millions of pilgrims, is also set for further expansion, likely involving significant tunnelling to facilitate smoother access to holy sites while overcoming geographic constraints. 

In Oman, the Muscat Metro project is likewise expected to link key districts while preserving the city’s landscape and avoiding disruptions to arterial roads by introducing underground sections. 

All of these projects show that tunnels will play an important role in the region’s future as it strives to create cities with more efficient and environmentally sustainable transit and utilities systems. 

https://image.digitalinsightresearch.in/uploads/NewsArticle/13561811/main.gif
Yasir Iqbal

Register for MEED's guest program now to access this article.

Click here to register
Exclusive from Meed
Related Articles
  • Building resilience into infrastructure delivery

    21 October 2026

     

    The regional disruptions earlier this year tested Gulf supply chains, challenging the movement of goods and construction materials and raising questions about the ability of infrastructure programmes to maintain momentum.

    For the UAE Ministry of Energy & Infrastructure, the experience reinforced the importance of the systems that support project delivery, from transport networks and customs procedures to domestic manufacturers and international suppliers.

    “The disruption reinforced an important principle: infrastructure resilience is ultimately about the ability of the national system to continue operating under pressure,” says Mohammed Al-Mansoori, undersecretary for infrastructure and transport affairs.

    Supply resilience

    The ministry worked with ports, customs authorities, transport and rail operators, contractors, suppliers and the private sector to maintain the flow of essential goods and construction materials. It monitored critical materials and project schedules, identified alternative sources and adjusted procurement and delivery arrangements.

    The response included movement exemptions and facilitation measures for more than 6,600 lorries, while rail freight operations increased from approximately one journey a week to as many as seven journeys a day. Priority and green corridors were activated, customs procedures facilitated and critical shipments prioritised at ports.

    According to Al-Mansoori, these measures contributed to an estimated 25% reduction in transport costs, a 40% improvement in customs clearance times and an increase of approximately 15% in port capacity during the response period.

    For infrastructure projects, the ministry worked with local manufacturers and suppliers to identify alternative sources of road and construction materials meeting the required technical specifications and quality standards. This helped reduce reliance on disrupted international supply routes and support ongoing projects.

    The experience also highlighted the value of existing coordination mechanisms and partnerships.

    “It also reinforced a fundamental principle: resilience means ensuring that critical infrastructure delivery does not depend on a single supplier, a single route or a single mode of transport,” Al-Mansoori says.

    The ministry is planning to build on this experience by diversifying suppliers, strengthening domestic manufacturing and improving supply-chain monitoring.

    Resilience is increasingly being incorporated into procurement planning. For critical materials and services, the ministry aims to identify risks early, broaden the pool of qualified suppliers and ensure viable alternatives are available.

    The approach supports the UAE’s wider industrial objectives, including the national in-country value programme, which seeks to direct a greater share of procurement expenditure into the national economy.

    “Our objective is not simply to purchase more locally. It is to help create competitive national supply chains,” Al-Mansoori says.

    Domestic suppliers must be able to meet the technical requirements, quality standards and volumes demanded by major infrastructure programmes. Localisation is therefore about developing competitive industrial capabilities while shortening supply chains, improving responsiveness and encouraging investment.

    “Localisation is not simply a procurement choice; it is an investment in national capability and long-term resilience,” Al-Mansoori says.

    The ministry is also working with contractors to manage pressures from fluctuating material, insurance and transport costs. Its approach combines commercial discipline with early engagement to prevent external pressures from affecting project delivery.

    “Our approach is based on early engagement, transparency and disciplined commercial management,” Al-Mansoori says. “Long-term infrastructure delivery depends on strong contractors as much as it depends on strong contracts.”

    Contractors remain responsible for normal market and contractual risks, but the ministry seeks to assess exceptional pressures objectively, supported by evidence of their impact on costs and schedules. Realistic planning, early procurement and proactive risk management also help maintain momentum.

    “The objective is to strike the right balance between protecting the government’s commercial interests and securing best value for money, while maintaining an efficient, sustainable contracting market capable of continuing to deliver strategic infrastructure projects,” Al-Mansoori says.

    Resilience means ensuring that critical infrastructure delivery does not depend on a single supplier, a single route or a single mode of transport

    Project delivery

    The ministry’s focus on measurable outcomes is reflected in the Emirates Road enhancement project, which involves widening approximately 25 kilometres of Emirates Road from three to five lanes in each direction, alongside major improvements to Interchange No. 7.

    The works are expected to increase road capacity by up to 65% and reduce journey times by up to 45%.

    The project illustrates the ministry’s emphasis on assessing infrastructure by the benefits it delivers, rather than simply the scale of construction.

    “Infrastructure success should be measured by the value it creates – not just by the kilometres we build,” Al-Mansoori says.

    That principle is increasingly important as the UAE balances new construction with the long-term costs of operating and maintaining its assets. Decisions made during planning and construction can influence maintenance requirements, operating costs and performance for decades.

    For Al-Mansoori, resilience, domestic capability and effective delivery are closely connected. Stronger local supply chains can reduce exposure to external shocks, while closer engagement with contractors can help projects withstand cost pressures. 

    Don’t miss MEED’s MENA Construction Summit 2026, taking place under the patronage of the UAE Ministry of Energy & Infrastructure
     Secure your place as an attendee or request the sponsorship deck by clicking here or emailing us at meedevents@meed.com

     

    https://image.digitalinsightresearch.in/uploads/NewsArticle/20810056/main.gif
    MEED Editorial
  • Riyadh tenders Expo 2030 Adaptation and Innovation Pavilion

    21 October 2026

     

    Register for MEED’s 14-day trial access 

    Expo 2030 Riyadh has tendered the design-and-build main contract for the Adaptation and Innovation Pavilion in the exhibition’s Technology District.

    The pavilion will be built on a plot of at least 12,710 square metres and will feature a two-level basement, ground-level public areas, an elevated skywalk, visitor experience areas, food and beverage outlets, retail space, VIP facilities, offices, back-of-house areas, exhibition spaces, an amphitheatre and a resonance hall.

    The facility is being designed to accommodate a minimum of 20,000 visitors a day at peak periods, with an anticipated average of about 15,000 visitors a day. The project targets LEED Gold certification.

    The tender was issued on 1 October, with bids due on 6 January 2027.

    The design-and-build contractor will be responsible for completing, reviewing, verifying, coordinating and technically integrating the design, including specialist contractor design portions and coordination with the novated lead design consultant.

    The scope includes completing early works and substructure activities, including grading, bulk earthworks, excavation, cut and fill, soil improvement, raft foundations, reinforced-concrete basement walls, basement columns through to the ground-floor slab, waterproofing, mechanical, electrical and plumbing (MEP) provisions, and backfilling.

    The contractor will also deliver the superstructure and building envelope, including structural works, facade engineering and installation, roofs, waterproofing, external finishes, and permanent facade access and maintenance systems. The internal works will cover front-of-house and back-of-house areas, public and core spaces, internal finishes, fixtures, fixed fittings, joinery, circulation areas, lobbies, stairs, toilets, storage, waste areas and associated builder’s works.

    The building services package includes MEP systems, information and communications technology, extra-low-voltage systems, building management systems, security, fire and life safety systems, specialist lighting and vertical transportation.

    The contract also covers the visitor experience package, including procurement, installation, integration, testing, commissioning and handover of visitor-facing environments, media, immersive and audiovisual technologies, interactive elements, experiential lighting, digital content, interpretive and wayfinding systems, controls and supporting infrastructure.

    Within-plot infrastructure and utilities, landscaping, public realm works, paving, planting, irrigation, signage, street furniture, drainage, stormwater systems, external lighting, security, and fire and life safety systems are also included.

    The contractor will be responsible for procurement, off-site fabrication, construction, testing and commissioning, performance verification, training, operations and maintenance documentation, operational readiness, handover, defects rectification and close-out.

    The main works tender is based on a 60% RIBA Stage 3 design, with the Stage 3 design to be completed to 100% through an addendum.

    Early works and substructure works, as well as the lead design consultant, will be novated to the contractor. Visitor experience works are included as a provisional sum.

    https://image.digitalinsightresearch.in/uploads/NewsArticle/20801465/main.jpeg
    Yasir Iqbal
  • Mubadala Bio lands Lilly logistics deal

    21 October 2026

    Mubadala Bio, the life sciences subsidiary of Abu Dhabi state investor Mubadala Investment Company, has signed an agreement with US drugmaker Eli Lilly to localise the packaging and logistics of Lilly’s glucagon-like peptide-1 (GLP-1) medicines in Abu Dhabi.

    The work will take place at a 125,000-square-metre site in Khalifa Economic Zones Abu Dhabi (Kezad), which includes packaging and warehousing facilities. Mubadala Bio said the facilities would strengthen its pharmaceutical contract manufacturing, packaging and logistics capabilities and its ability to serve international clients from the UAE.

    The packaging and logistics activities will be introduced in phases and will be subject to technical, quality and regulatory requirements. The companies did not disclose the value of the agreement or a timeline for the first phase.

    The Emirates Drug Establishment approved Lilly’s oral GLP-1 drug Foundayo (orforglipron) for chronic weight management in April. The companies said this made the UAE the second country in the world to register the medicine.

    In Abu Dhabi, the treatment is available to eligible patients under a weight management programme launched by the Abu Dhabi Department of Health and the Abu Dhabi Public Health Centre in June 2025. The UAE was also an early launch market for Lilly’s injectable treatment Mounjaro (tirzepatide) in August 2022.

    Mubadala launched Mubadala Bio in 2025 to expand domestic drug manufacturing and distribution, with a focus on national drug security. It is one of Mubadala’s designated national champions, set up to support strategic sectors. At launch, its combined facilities covered 110,000 square metres, with an annual capacity of more than 2.5 billion tablets and capsules and 120 million intravenous and injectable units.

    https://image.digitalinsightresearch.in/uploads/NewsArticle/20801279/main.jpg
    Colin Foreman
  • Chinese/local joint venture wins Qiddiya stadium facade

    21 October 2026

    Register for MEED’s 14-day trial access 

    A joint venture of China’s Fangda Group and Saudi Arabia’s IKK Group has secured a SR1.15bn ($306m) contract to deliver curtain wall facade works for the Prince Mohammed Bin Salman Stadium in Qiddiya City, Riyadh.  

    The contract was awarded by the joint venture of Spain’s FCC Construccion and local contractor Nesma & Partners, which is building the stadium under an estimated SR15bn ($4bn) main contract awarded by Qiddiya Investment Company (QIC) in October 2024.  

    The IKK-Fangda joint venture will design, supply and install curtain wall façade systems for the main stadium (Lot 1), as well as for the museum and ancillary buildings (Lot 3).

    The contract has an execution period of 863 days.  

    The stadium will seat about 47,000 spectators and will be the home ground for Saudi Pro League clubs Al-Nassr and Al-Hilal.

    The facade award follows the appointment of Elegancia Arabia, a subsidiary of Qatar-based Elegancia MEP and Estithmar Holding, to deliver the stadium’s mechanical, electrical and plumbing works.

    The SR829m ($221m) contract is Elegancia Arabia’s largest award in Saudi Arabia to date.

    The project is being designed by US-based consultant Populous.

    It is among the venues planned for the 2034 Fifa World Cup and will also host the Saudi King Cup, the AFC Asian Cup and the 2034 Asian Games.  

    https://image.digitalinsightresearch.in/uploads/NewsArticle/20799367/main.jpg
    Yasir Iqbal
  • Zamil Steel wins $82m Qiddiya tennis centre contract

    21 October 2026

    Advanced Building Industries Company (Senaat) has announced that its subsidiary, Zamil Structural Steel Company (Zamil Steel), has secured a SR308m ($82m) contract for the National Tennis Centre in Qiddiya City, Riyadh.  

    The 19-month contract was awarded by the joint venture of France’s Bouygues Batiment International and local contractor Almabani General Contractors Company.  

    Zamil Steel’s scope includes the fabrication, supply and installation of structural steel and external facades for the scheme.   

    MEED reported in June that the Bouygues Batiment International-Almabani joint venture had started construction of the National Tennis Centre.  

    The development will include 30 tennis courts, comprising 28 hard courts and two clay courts. The main Centre Court will seat 15,000 spectators and feature a retractable roof.

    The facility is being designed to meet standards set by the Association of Tennis Professionals, the Women’s Tennis Association and the International Tennis Federation.  

    The development will also include an 8,000-seat multipurpose arena with a retractable roof, known as Court 3. Other facilities include a 5,000-seat Court 1, a 2,000-seat Court 2, six competition courts, six indoor courts and 14 practice courts. Each outdoor match court will provide 450 seats.  

    Total seating capacity across the complex will be 33,000. US-based architect Populous designed the project.  

    Qiddiya Investment Company officially announced the project on 15 June. The developer has said the centre will be the region’s largest tennis complex and will host international tennis events.

    https://image.digitalinsightresearch.in/uploads/NewsArticle/20799055/main.jpg
    Yasir Iqbal