Meed | Traffic drives construction underground

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.

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Yasir Iqbal

Exclusive from Meed

Houthi escalation targets Saudi airports
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12 October 2026
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12 October 2026
Contractors prepare Jordan stadium prequalification
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Abu Dhabi plans Mussafah road upgrades
12 October 2026

Houthi escalation targets Saudi airports
12 October 2026

Yemen’s Houthis have placed Saudi Arabia’s civil aviation infrastructure at the centre of their campaign against the kingdom. Two strikes on King Khalid International airport in Riyadh over the weekend killed 13 people and injured 320.

The deadlier attack hit a passenger terminal on the afternoon of 10 October. The General Authority of Civil Aviation (Gaca) said it killed 12 people, including four Saudi citizens, and injured 309. Airport operations were suspended pending a damage assessment.

A second strike hit Terminal 4 on the afternoon of 11 October, sparking a fire that killed a Pakistani resident and injured 11 others, according to Gaca. The Saudi-led coalition reported intercepting a cruise missile near the airport that afternoon. Gaca also reported an attack on King Fahd International airport in Dammam that evening, following a coalition report of a projectile falling near the facility the previous night.

The weekend strikes followed attacks on Abha International airport on 6 October and on King Khalid International airport on 7 and 8 October, the last of which included a strike on a Saudia aircraft. Gaca figures put the toll from the week’s attacks on Saudi airports at 19 dead and more than 350 injured.

The Houthis said they would continue operations inside the kingdom and that all Saudi airports were potential targets, with the exception of those serving the holy cities. The group says it is acting in response to Riyadh’s support for Yemeni government forces and a Saudi air strike on Sanaa airport. It has also claimed attacks on Saudi oil facilities, which Saudi authorities have not confirmed.

Aviation exposure

The attacks strike a sector central to the kingdom’s diversification plans. King Khalid International airport’s existing terminals are to be absorbed into King Salman International airport (KSIA), a 57-square-kilometre development with six parallel runways targeting a capacity of 120 million passengers by 2030 and 185 million by 2050.

Procurement on KSIA has gathered pace this year. In July, a joint venture of China Civil Engineering Construction Corporation and Dammam-based Mofarreh AlHarbi & Partners won an estimated SR800m ($213m) contract for enabling and substructure works on Terminal 6, which will add capacity for 40 million passengers. Turkish contractor IC Ictas and Saudi Arabia’s Al-Rashid Trading & Contracting recently secured a SR800m ($213m) contract for the airport’s Private Aviation Terminal.

Government-owned Saudi Royal Aviation set 8 October as the bid deadline for an estimated SR3bn ($800m) contract to build an aviation complex within the KSIA masterplan, the same day the Houthis struck King Khalid International airport and a Saudia aircraft.

Airlines have already adjusted. Flydubai cancelled flights to Riyadh and Yanbu up to 10 October and to Abha up to 11 October, and Etihad Airways reported extended delays on its Abu Dhabi to Riyadh service after the airport closed on 8 October. The UK Foreign Office has advised against all travel to areas within 10km of the Yemeni border.

Market reaction

The Saudi stock market’s response has been muted so far. The Tadawul main index fell 15.54 points to close at 10,360.74 on 11 October, the first trading session after the Saturday attack, with turnover of SR2.6bn ($693m). The session closed before the second strike on King Khalid International airport and the attack on Dammam, and Monday’s trading will be the first to reflect the full weekend.

The weekend also brought a separate maritime incident. UK Maritime Trade Operations said an oil tanker was struck by an unidentified projectile in the Strait of Hormuz on 11 October, with its crew reported safe.

Diplomatic response

The coalition described the 10 October attack as a war crime and said it would respond decisively. It said on 10 October that it had destroyed 136 military targets in Houthi-controlled areas and was working to dismantle the group’s ballistic missile network.

Egypt, Pakistan and Turkiye joined Saudi Arabia in an R4 group statement condemning the attacks and supporting measures taken by the kingdom in response. The Arab League also voiced its support for Saudi Arabia. On 11 October, Iran’s foreign minister spoke by telephone with his Saudi counterpart, Prince Faisal Bin Farhan, to discuss the escalation. The US and UK have also signalled the possibility of further support for the kingdom.

The escalation comes against the backdrop of the regional conflict, which has drawn Saudi Arabia into a renewed Yemen front after several years of relative calm following the 2022 ceasefire. The extent of the damage at King Khalid International airport, which Gaca is still assessing, and the speed at which international carriers resume full schedules will determine how far the attacks disrupt the kingdom’s aviation programme.

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Colin Foreman
Egypt and Saudi Arabia sign oil and gas deal
12 October 2026

Egypt and Saudi Arabia have signed an agreement to strengthen cooperation in the oil, natural gas and petrochemicals sectors, according to a statement from Egypt’s Ministry of Petroleum & Mineral Resources.

The memorandum of understanding (MoU) was signed in Riyadh by Karim Badawi, Egypt’s minister of petroleum and mineral resources, and Abdulaziz Bin Salman, Saudi Arabia’s minister of energy.

Under the agreement, both sides will enhance cooperation in trading, transporting, storing and distributing crude oil, petroleum products and natural gas.

They will also expand cooperation on developing the infrastructure and logistics services that support these activities.

In its statement, Egypt’s Ministry of Petroleum & Mineral Resources said: “These efforts will contribute to improving energy market efficiency, enhancing the resilience and reliability of supply chains, and strengthening energy security.”

The MoU also provides for expanded cooperation in exchanging expertise and best practices in operating and developing fuel stations, as well as in transporting and tracking petroleum products and liquefied petroleum gas cylinders.

Additionally, the agreement seeks to explore investment opportunities in joint projects and promote exports.

The latest agreement comes as Egypt becomes an increasingly important export route for Saudi Arabia.

Due to disruptions and security risks affecting shipments through the Strait of Hormuz, Saudi Arabia has been redirecting crude exports via its East-West Pipeline to Yanbu on the Red Sea.

Meanwhile, the Bab El-Mandeb Strait, at the southern end of the Red Sea, has also become a security concern due to military activity in Yemen. Egypt offers an alternative route through the Sumed pipeline, which runs from Ain Sokhna on the Red Sea to Sidi Kerir on the Mediterranean.

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Wil Crisp
JGC yet to return evacuated workers to Basra refinery
12 October 2026
Japan’s JGC has yet to bring evacuated workers back to the Basra refinery project in Iraq, according to industry sources.

JGC evacuated its personnel from the site in the southern oil hub of Basra following the start of the regional conflict on 28 February, when the US and Israel attacked Iran.

The evacuation halted work on the project, which was in its final construction stage.

On 14 August 2026, Iraq’s Ministry of Oil announced that it had signed an agreement with JGC to resume work on the fluid catalytic cracking (FCC) project at Basra refinery.

One source said: “Even though the agreement to bring the evacuated workers back was signed about two months ago, there is still no sign of the evacuated workers on the project site.

“It is possible that they will return soon, but it is hard to tell what will happen next in the current security environment.”

Earlier this month, Iraq’s Ministry of Oil said it met with Japanese officials to discuss plans to commission the FCC unit under the Basra refinery upgrade project.

The statement did not say when the evacuated JGC workers would return to the project site.

Strategic project

Iraq’s state-owned South Refineries Company (SRC) sent JGC notice of the main contract award for the FCC package of the Basra refinery upgrade project in August 2020.

JGC was awarded the contract in consortium with South Korea’s Hyundai E&C.

The official contract signing ceremony was held in Baghdad on 1 October 2020.

The contract awarded to JGC, which uses the engineering, procurement, construction and commissioning model, was worth $3.78bn.

The FCC package is part of a broader project to upgrade the Basra refinery.

The project site is located about 12 kilometres east of Iraq’s southern city of Basra.

The wider upgrade project involves installing new facilities on land adjacent to the existing Basra refinery, including a vacuum distillation unit and a diesel desulphurisation unit.

In April 2021, France’s Axens won a contract in Iraq to provide four process technologies to SRC for the Basra refinery upgrade project.

The technologies that SRC selected are:
- Diesel hydrotreatment unit (Prime-D)
- Vacuum gasoil (VGO) hydrotreating unit
- VGO fluid catalytic cracker unit
- Oligomerisation unit (polynaphtha)
In addition, Axens is providing catalysts and adsorbents, proprietary equipment, training and technical services.

MEED’s latest report on Iraq includes:

> COMMENT: Iraq’s reform window narrows
> GOVERNMENT: Al-Zaidi takes Iraq’s premiership under US shadow
> BANKING: Financial challenge tests Iraq’s resolve
> ECONOMY: Iraq enters era of resilience, reform and rising risks
> OIL & GAS: Iraqi oil and gas sector in crisis
> POWER & WATER: Focus shifts to delivery of Iraq utilities expansion
> CONSTRUCTION: Momentum builds in Iraq’s post-war construction sector

To see previous issues of MEED Business Review, please click here
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Wil Crisp

Contractors prepare Jordan stadium prequalification

12 October 2026

Contractors are preparing to submit prequalification statements on 14 October for a contract to build Jordan’s Al-Hussein Bin Abdullah II International Stadium, located east of the capital, Amman.

The project is part of the first phase of the Amra City development masterplan and is being implemented by Jordan Cities & Facilities Development Company, a Jordan Investment Fund-owned company.

Main works are expected to begin early next year, with the stadium slated for completion in 2029.

The project will cover about 1 million square metres, and the stadium will seat 50,000 spectators.

The stadium is being built within the Amra City development, which is located about 40 kilometres (km) from downtown Amman and 35km from Zarqa and Queen Alia International airport.

MEED reported that preliminary excavation and site preparation began in June.

The project forms part of Jordan’s Economic Modernisation Vision (EMV) 2023-25.

The EMV – Amman’s flagship reform programme – aims to increase real income per capita by an average of 3% annually, create 1 million jobs and more than double the country’s GDP over the next decade.

The strategy envisages a leading role for the private sector, which is expected to account for 73% of the estimated $58.8bn investment required.

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

Industry and logistics drive development at Neom; Saudi Arabia’s investment priorities realign amid conflict; MEED’s 2026 power developer ranking.

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

> AGENDA: Oxagon takes centre stage at Neom

> MARKET FOCUS: Saudi projects hold steady

> INDUSTRY REPORT: MEED’s 2026 GCC power developer ranking

> POWER: AI is creating a grid capacity problem

> LEGAL: What IFAD’s wind-down means for Gulf commodity markets

> OIL: Oil companies focus on North Africa amid Hormuz crisis

> LEADERSHIP: The future city does not need to hang above the ground

To see previous issues of MEED Business Review, please click here

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Yasir Iqbal

Abu Dhabi plans Mussafah road upgrades

12 October 2026

Abu Dhabi’s Department of Municipalities and Transport (DMT) has announced plans to upgrade roads in Mussafah, improving links between the industrial area, Mohamed Bin Zayed City and Zayed City.

The scheme covers about 13 kilometres of roads on the E30 and 8th Street. It aims to reduce congestion, improve road safety and cut journey times.

The works include a new three-lane highway in each direction along 8th Street, with parallel three-lane service roads on both sides providing access to local businesses and facilities.

The upgraded corridor is expected to accommodate up to 4,000 vehicles an hour.

Other works include upgrades to four E30 interchanges, improved links to 8th Street and the E20, and modifications to nine junctions.

The DMT also plans to build two bridges connecting Mussafah and Mohamed Bin Zayed City, along with a pedestrian bridge.

Abu Dhabi is planning major investments to upgrade its road network across the emirate.

Last week, it disclosed plans for a major new transport corridor in the capital, comprising a 37km coastal route linking Al-Hudayriyat Island with the E11 at Al-Nouf.

It is planned to have three lanes in each direction and will include a tunnel, about 7km of marine bridges and about 4km of causeways.

The scheme will provide a direct connection between Al-Dhafra, Al-Hudayriyat Island and Abu Dhabi Island via Halat Al-Bahrani, Al-Futaisi and Al-Aryam islands.