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
  • Chinese firm announces $1.9bn Abu Dhabi renewables contract

    23 March 2026

    China Power Construction Corporation (PowerChina) has announced details of a contract signed for the engineering, procurement and construction (EPC) works on part of Abu Dhabi’s $6bn round-the-clock solar and battery storage project.

    The independent power project (IPP) will combine 5.2GW of solar photovoltaic (PV) capacity with 19GWh of battery storage. Last October, Emirates Water & Electricity Company (Ewec) and Abu Dhabi Future Energy Company (Masdar) broke ground on what will be the world’s largest combined solar and battery energy storage system (bess), designed to supply 1GW of round-the-clock power.

    India’s Larsen & Toubro and Beijing-headquartered PowerChina were awarded the EPC contract for the project last year, with PwC Middle East advising Ewec on financial structuring.

    According to the Chinese firm, the full project has been divided into two blocks, north and south, indicating at least two major packages. 

    PowerChina’s contract, valued at about $1.9bn, covers the northern block of the project, which includes 2.1GW of DC-side PV installations and a 7.75GWh bess. The scope includes the design, procurement and construction of substations, PV facilities and battery energy storage systems.

    Located in the Mshayrif area of Abu Dhabi, the wider project is designed to supply steady delivery of power between April and October each year, the UAE’s peak electricity demand season due to cooling loads.

    This includes serving large energy users that require 24/7 clean electricity, such as fast-growing data centre operators and technology firms driving artificial intelligence deployment in the region.

    Ewec will act as the offtaker under a long-term power purchase agreement.

    MEED previously reported that China’s CATL (Contemporary Amperex Technology Co), Jinko Solar and JA Solar will supply the bess and PV modules, with Jinko and JA each providing 2.6GW of modules. 

    The project will avoid 5.7 million tonnes of CO₂ emissions annually and provide enough clean energy to power nearly half a million homes.

    Construction is expected to be completed in 2028.

    https://image.digitalinsightresearch.in/uploads/NewsArticle/16083288/main.jpg
    Mark Dowdall
  • Kuwait tenders major infrastructure packages

    23 March 2026

     

    Kuwait’s Ministry of Public Works (MPW) has tendered several contracts for infrastructure works across various parts of the country.

    The first tender covers the construction of rainwater drainage systems in the Sabah Al-Ahmad South, Sabah Al-Ahmad, Al-Khairan and Al-Wafra residential areas.

    The second tender includes the construction of a treated water system in Kuwait’s southern region.

    The third tender covers the construction of a treated water system in Kuwait’s northern region.

    The final tender covers the construction of roads, bridges, stormwater drainage, sewage and other services for a section of the Kabd-Sulaibiya Road, as well as a section of the Kabd-Sulaibiya industrial road link.

    MPW issued all of these tenders on 22 March, with a bid submission deadline of 21 April.

    UK analytics firm GlobalData expects Kuwait’s construction industry to grow by 5.1% in 2026-29, supported by government investment in the oil and gas sector aimed at raising production, as well as investment in the infrastructure sector.

    In the short term, growth will be boosted by planned expenditure under the 2025-26 budget, which was approved in March 2025.

    The construction industry in Kuwait is expected to record an annual average growth rate of 4.9% in 2026-29, supported by investments in renewable energy, transport, and oil and gas projects.

    The commercial construction sector is expected to grow by 4.8% in 2026-29, supported by public and private sector investment in the construction of hotels, retail outlets and office buildings.

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

    Riyadh urges private sector to take greater role; Chemical players look to spend rationally; Economic uptick lends confidence to Cairo’s reforms.

    Distributed to senior decision-makers in the region and around the world, the March 2026 edition of MEED Business Review includes:
    To see previous issues of MEED Business Review, please click here
    https://image.digitalinsightresearch.in/uploads/NewsArticle/16083252/main.jpg
    Yasir Iqbal
  • Qiddiya tenders new infrastructure package

    23 March 2026

     

    Saudi Arabian gigaproject developer Qiddiya Investment Company (QIC) has tendered a contract inviting firms to bid for new infrastructure works in Qiddiya Entertainment City.

    The scope covers two infrastructure development packages in District 0 of Qiddiya Entertainment City, including the construction of four event park-and-ride facilities.

    The tender was issued on 11 March, with a bid submission deadline of 22 April.

    Lebanese firm Dar Al-Handasah and Saudi-based Sets International are serving as project consultants.

    QIC is accelerating plans to develop additional assets at Qiddiya City. Earlier this month, the company set a 16 April deadline for firms to submit prequalification statements for the Qiddiya high-speed rail project in Riyadh.

    Previously, MEED reported that QIC had received bids from contractors on 23 February for a SR980m ($261m) contract covering the construction of staff accommodation at Qiddiya Entertainment City.

    The project will cover an area of more than 105,000 square metres (sq m).

    Last month, QIC started the main construction works on its performing arts centre at Qiddiya Entertainment City.

    The Qiddiya City performing arts centre is one of several major projects within the greater Qiddiya development. Other projects include an e-games arena, Prince Mohammed Bin Salman Stadium, a motorsports track, the Dragon Ball and Six Flags theme parks, and Aquarabia.

    In December last year, QIC officially opened the Six Flags theme park to the public.

    The theme park covers an area of 320,000 sq m and features 28 rides and attractions, 10 of which are thrill rides and 18 designed for families and young children.

    The Qiddiya project is a key part of Riyadh’s strategy to boost leisure tourism in the kingdom. According to UK analytics firm GlobalData, leisure tourism in Saudi Arabia has experienced significant growth in recent years.

    The kingdom’s tourism sector posted record-breaking numbers last year, with over 130 million domestic and international visitors entering the kingdom, representing a 6% increase over 2024.

    https://image.digitalinsightresearch.in/uploads/NewsArticle/16083013/main.jpg
    Yasir Iqbal
  • Kuwait’s Mina Al-Ahmadi refinery attacked

    23 March 2026

    Register for MEED’s 14-day trial access 

    Several units were shut down at Kuwait’s largest oil refinery after it was hit by drones as Iran targeted energy infrastructure across the Gulf, according to a statement from state-owned Kuwait Petroleum Corporation (KPC).

    Fires broke out across multiple units at the Mina Al-Ahmadi refinery in the morning of 20 March 2026 following the attack.

    The refinery normally processes about 730,000 barrels of oil a day.

    There were no casualties as a result of the attack, according to KPC.

    Kuwait’s oil and gas sector has been severely disrupted by the ongoing regional conflict.

    On 10 March, MEED revealed that the state-owned upstream operator Kuwait Oil Company (KOC) was operating with just 30% of its total workforce in their normal workplaces.

    Earlier in the month, KPC also declared force majeure due to difficulties transporting oil and gas through the Strait of Hormuz caused by the conflict.

    Force majeure, a French term meaning “superior force”, is a clause included in many international commercial contracts. It allows companies to suspend contractual obligations when extraordinary events occur beyond their control.

    https://image.digitalinsightresearch.in/uploads/NewsArticle/16067425/main.gif
    Wil Crisp
  • Iraq declares force majeure on foreign-operated oil fields

    23 March 2026

    Register for MEED’s 14-day trial access 

    Iraq has declared force majeure on all oil fields developed by foreign oil companies as the US and Israel’s war with Iran disrupts navigation through the Strait of Hormuz.

    The initial attack and Iran’s response have slashed Iraq’s exports.

    Prior to the war starting on 28 February, Iraq was exporting between 3.3 and 3.5 million barrels a day of crude oil.

    Oil sales account for nearly 90% of Iraq’s government revenues.

    Earlier this month, two drone strikes hit infrastructure at Iraq’s Majnoon oil field, increasing security concerns in the country’s energy sector.

    One of the drones hit a communications tower, and the other hit the office of the US engineering company KBR.

    There were no casualties as a result of the attacks.

    Foreign workers were evacuated from the site days after the US and Israel’s war with Iran started, and only Iraqi staff are currently working at the site.

    Shortly before the war started, KBR announced that it had been awarded a “major contract” by Iraq’s state-owned Basra Oil Company to provide integrated field management services for the Majnoon oil field.

    https://image.digitalinsightresearch.in/uploads/NewsArticle/16067302/main.png
    Wil Crisp