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

Jedco maps next phase of Jeddah airport expansion
22 September 2026
Contractor wins $105m Medina university hospital deal
22 September 2026
Oman tenders Thumrait Industrial City infrastructure
22 September 2026
Kuwait halves drilling contractor pool
22 September 2026
Abu Dhabi expects 45% emissions cut as electricity demand rises
21 September 2026

Jedco maps next phase of Jeddah airport expansion
22 September 2026

Jeddah Airports Company (Jedco) has outlined plans for the next phase of expansion at King Abdulaziz International airport (KAIA) in Jeddah.

The programme comprises six upcoming contractor packages spanning airside works, terminal upgrades and utilities as Jedco advances its long-term expansion plans.

The opportunities include airfield rehabilitation; a five-year construction framework covering multiple workstreams and facility types; a Terminal 3A (T3A) package; Terminal 1 (T1) optimisation; a fuel farm; and Concourse C works.

The packages cover terminal buildings and ancillary facilities, runways, taxiways and aprons, hangars, fuel systems, airside facilities, supporting infrastructure and utility networks.

Tendering and award activity will be staggered over the next two years. Airfield rehabilitation is targeted for Q3 2026. The construction framework is scheduled for Q4 2026 and will run for five years.

The T3A package is planned for Q1 2027 and will be delivered under an early contractor involvement contract. Local contractors are encouraged to bid as part of a joint venture with an experienced international partner.

T1 optimisation is planned for Q4 2027, the fuel farm for Q2 2027, and Concourse C – currently the latest of the six milestones – for Q2 2028.

The new packages add detail to Jedco’s wider expansion plans disclosed in 2023, when it was reported that the company would invest SR115bn ($31bn) to increase KAIA’s capacity to 114 million passengers a year, with an overall completion target of 2031.

Jedco has recently awarded several significant contracts linked to the airport’s upgrade programme.

In November 2024, a joint venture of local Algihaz Contracting and Turkey’s TAV was awarded a contract to rehabilitate the South Terminal to serve Umrah and Hajj pilgrims, with Singapore’s Surbana Jurong acting as consultant.

Earlier that year, Jedco also awarded France’s Alstom a contract to increase the capacity of the Innovia automated people mover at Terminal 1, including new cars and upgrades to signalling, communications and controls.

Surbana Jurong is expected to play a leading role in future KAIA expansion plans and is currently providing technical advisory and project management consultancy for more than 100 capital projects for Jedco, valued at over SR6bn ($1.6bn).

These upgrades are expected to boost KAIA’s annual capacity in line with Saudi Arabia’s Vision 2030 and National Aviation Strategy, enhancing the experience for domestic travellers and millions of Hajj and Umrah pilgrims.

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Yasir Iqbal

Contractor wins $105m Medina university hospital deal

22 September 2026

Riyadh-based construction firm Al-Mansouria General Contracting Company has been awarded a SR396m ($105.6m) contract to complete the remaining construction works on the Taiba University Hospital project in Medina.

The contract scope includes structural completion, remaining civil works, mechanical, electrical and plumbing installations, specialised clinical fit-outs and medical gas infrastructure to bring the long-stalled facility into operation.

Located on King Khalid Road along Medina’s Third Ring Road, the teaching hospital will have a capacity of 563 beds.

The contract duration is three years, with delivery targeted for late 2029.

The latest award follows a prolonged procurement cycle that began more than a decade ago as part of a public budget drive to expand Saudi Arabia’s higher education infrastructure.

The project’s first phase was initially signed in December 2011 with local firm Al-Muhaidib Contracting under a SR500m ($133.3m) contract.

Groundbreaking for the eight-storey complex took place in July 2013. The project covers a gross floor area of more than 200,000 square metres.

Progress stalled shortly thereafter due to reported structural delays and the reallocation of public capital budgets across the kingdom’s social infrastructure pipeline.

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

Nuclear power ambitions gather pace; Kuwait keeps dealmaking alive despite war; Region invests in raising gas processing capacity.

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

> AGENDA: Gulf nuclear revival takes shape

> MARKET FOCUS: Kuwait keeps dealmaking alive under fire

> INDUSTRY REPORT: Gas processing takes centre stage in Mena region

> INTERVIEW: Emsteel persists with business productivity and efficiency

> TUNNELS: The Gulf’s next construction boom is happening underground

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

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Yasir Iqbal

Oman tenders Thumrait Industrial City infrastructure
22 September 2026

Oman’s Public Establishment for Industrial Estates (Madayn) has tendered an estimated RO15m ($39m) contract to develop infrastructure for Thumrait Industrial City.

The tender was issued on 14 September, with bids due by 12 November.

The scope covers site-wide utilities and services, including an internal road network, stormwater channels and culverts. It also includes installing sewerage and water networks, along with landscaping works.

In addition, Madayn intends to build plug-and-play industrial units and a facilities building.

The first phase of the development will cover about 120,000 square metres (sq m).

Thumrait Industrial City is located in Oman’s Dhofar Governorate and spans an area of more than four million sq m.

The project location is close to concession blocks, quarry sites and the Najd agricultural areas. It is positioned to attract industrial investments in sectors such as mining and minerals processing (including gypsum and cement), food production, and a range of light and general manufacturing activities.

In March, Madayn said it is preparing to invest more than RO245m ($637m) to upgrade and expand infrastructure across its industrial cities between 2026 and 2030, as part of efforts to attract new investment and advance economic diversification.

According to media reports, Madayn chief executive Dawood Bin Salim Al-Hadabi said the programme is part of an expanded, phased plan aligned with Oman Vision 2040 and the authority’s long-term Madayn 2040 strategy.

The objective is to deepen Oman’s industrial base and spread growth across the sultanate’s governorates.

Madayn said the pipeline comprises about 90 strategic projects to improve industrial-city infrastructure, extend serviced land and increase the overall ease of doing business for investors.

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Yasir Iqbal
Kuwait halves drilling contractor pool
22 September 2026
State-owned upstream operator Kuwait Oil Company (KOC) has reduced the number of approved contractors for onshore drilling and shallow-well maintenance from 51 to 24.

Firms that are no longer qualified include major contractors such as Italy’s Saipem, Oklahoma-based Helmerich & Payne and Houston-based Patterson-UTI Energy.

The latest list still includes a wide range of Kuwaiti, regional and international companies, according to the latest update on its electronic system, published on 21 September 2026.

The full list of contractors that are now qualified to participate in tenders is:
- Burgan Company for Well Drilling, Trading & Maintenance (Kuwait)
- Kuwait Drilling Company (Kuwait)
- Sun Drilling Kuwait (Kuwait)
- TDL Kuwait for Oil Rigs & Natural Gas Extraction Activities, Services and Facilities (Kuwait)
- United Precision Drilling (Kuwait)
- Abraj Energy Services (Oman)
- Adnoc Drilling Company (UAE)
- Arabian Drilling Company (Saudi Arabia)
- Anton Oilfield Services (China)
- China Oilfield Services (China)
- Egyptian Drilling Company (Egypt)
- CNPC Bohai Drilling Engineering Company (China)
- Great Wall Drilling Company (China)
- John Energy (India)
- Kerui Oilfield Service (China)
- KCA Deutag Drilling (Germany)
- Mohammed Al-Barwani Petroleum Services (Oman)
- Nabors Drilling International (US)
- National Drilling & Services Company (Oman)
- Sea & Land Drilling Contractors (Oman)
- Sinopec International Petroleum Service Corporation (China)
- Karamay Jianye Energy (China)
- Modern Drilling Company (Egypt)
- Grey Wolf Drilling International (US)
An earlier list, which was published on 11 February, included 51 qualified companies.

The reduction in qualified drilling contractors follows KOC’s notice on 27 April this year, informing existing qualified contractors that they would need to reapply.
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Wil Crisp

Abu Dhabi expects 45% emissions cut as electricity demand rises

21 September 2026

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Abu Dhabi-based Emirates Water & Electricity Company (Ewec) expects carbon emissions from power and water production to fall by more than 45% by 2035 as the UAE expands renewable energy and reverse osmosis (RO) desalination.

The state offtaker's latest long-term system planning forecasts emissions will decline from about 42 million tonnes in 2019 to approximately 23 million tonnes in 2035.

The reduction is expected despite annual electricity demand that is forecast to rise by about 70% in 2026-33.

Ewec said the expansion of renewable energy and the shift towards RO desalination will be the principal drivers of the reduction.

The company plans to increase Abu Dhabi's solar capacity to 14GW by 2030 and more than 35GW by 2035. This will be supported by up to 15GW of battery storage capacity.

According to regional project tracker MEED Projects, Ewec has over $16bn-worth of power and water projects in the execution stage as part of its long-term procurement programme to increase renewable energy and low-carbon water production capacity.

This includes a 5.2GW Abu Dhabi solar and battery energy storage system (bess) round-the-clock renewable energy project, as well as three 1.5GW solar photovoltaic independent power projects (IPP): Al-Ajban, Al-Khazna and Al-Zarraf.

It also comprises the 1GW Al-Dhafra open-cycle gas turbine power plant, the 2.5GW Taweelah C combined-cycle gas turbine (CCGT) plant and a separate 400MW bess IPP.

As previously reported, it is expected that the developer's agreement for the 3.3GW Al-Nouf 1 CCGT IPP will be signed by the end of the year, while contractors are preparing to submit bids for a separate 2.6GW power plant project in Ajman.

The expansion of solar and battery storage is expected to reduce the system's reliance on gas-fired generation. However, gas-fired generation will continue to provide flexibility to support the system and balance intermittent renewable power output, according to Ewec.

The offtaker also expects RO desalination to account for more than 95% of total water production by 2035, with the procurement programme supporting the Abu Dhabi Department of Energy's Clean Energy Strategic Target 2035 for electricity production and the UAE Net Zero by 2050 Strategy.