Tunnelling projects take the front seat
22 August 2023
The economic and energy diversification programmes of countries in the Middle East and North Africa have provided an impetus for physical infrastructure projects such as tunnels, which have become emblematic of the region’s transition towards a more interconnected and sustainable future.
In some cases, tunnelling projects in the region also extend beyond their utilitarian functions – in addition to decongesting cities and improving water networks, they embody diplomatic overtones and regional cooperation.
Some of the biggest tunnelling projects in the Middle East have historically been executed in the GCC, especially in Saudi Arabia and the UAE. These two countries also promise the most robust future project pipelines.
Neom tunnels
In line with its strategy of redefining sustainable urban living, the integration of tunnels is key to shaping the landscape at Neom in Saudi Arabia.
Tunnels are core components of the integrated transportation network at Neom's The Line, Oxagon and Trojena developments.
According to regional projects tracker MEED Projects, about $6.9bn-worth of schemes with tunnel components are at the pre-execution and execution phases at Neom.
Tunnel projects worth over $4.6bn are in the execution phase. These include the backbone infrastructure tunnels for The Line project, which involve constructing two railway tunnels in parallel using the drill-and-blast method, one for passengers and the other for goods.
In June 2022, Neom awarded $2.7bn-worth of main contracts to the joint venture of Shibh al-Jazira Contracting, China State Construction Engineering and FCC Construction for lots two and three of this scheme.
A separate contract worth about $1.8bn was awarded by Neom for lots four and five to a team of Archirodon, Samsung Engineering and Hyundai Engineering.
The pipeline of projects with tunnel components at Neom is worth about $2.3bn. Some of the major upcoming projects include the time-travel tunnel and funicular railway at Trojena and a package of works for the Spine railway network at The Line. The main contract bids for both packages are in the evaluation phase.
Other upcoming projects include the Spine's desert coastal west cut-and-cover tunnels for The Line, which are under design, and packages one and two of the delta junction tunnel at Oxagon. Neom expects to receive the bids for both packages by 27 August.
Dubai Deep Tunnels Portfolio
In Dubai, meanwhile, the Deep Tunnels Portfolio includes a series of interconnected deep sewage tunnels and associated facilities. The project involves the construction of two sets of deep tunnels terminating at two pump stations located at sewerage treatment plants (STPs) in Warsan and Jebel Ali.
A conventional sewage and drainage collection system and STPs will be built in Hatta.
First announced in 2015, the Dubai Deep Tunnels Portfolio project has faced delays over the years. The tender for consultancy services was first issued in 2015 and was awarded the following year to US-headquartered Parsons.
In June 2017, Dubai Municipality appointed Dutch consulting firm KPMG to assist with preparing the project under a public-private partnership (PPP) model instead of the conventional engineering, procurement and construction model.
There was no significant progress on the project after Dubai Municipality conducted a geotechnical investigation in late 2017.
This changed in June of this year, however, when Dubai’s Executive Council approved the project and said it would require an investment of about AED80bn ($22bn).
It added that the project has been designed to serve the needs of the Dubai population for the next 100 years, in alignment with the Dubai Economic Agenda D33 and the Dubai Urban Plan 2040.
In August, Dubai Municipality invited firms to express interest in bidding for the contract to provide project management consultancy services for the scheme. It expects to receive prequalification applications by 25 August.
Jeddah stormwater system
Jeddah Municipality is also taking steps to improve the city’s water infrastructure, and is investing in stormwater drainage and management systems.
The latest project under this programme is the King Abdullah Road-Falasteen Road (Kafa) tunnel, which is being developed in two phases. Phase one involves the construction of two main storage tunnels, one 5.3 kilometres (km) long and the other 3.4km long.
The scope of phase two includes constructing a terminal pumping station, a marine outfall and all necessary online and offline shafts.
In March, Jeddah Municipality invited contractors to prequalify for the contract to build the tunnels. It is understood the client received responses to the request for qualifications in June.
US-based Aecom is the consultant for the project.
Morocco's undersea rail link
In June this year, the Spanish government revived the Morocco-to-Spain undersea rail link project after allocating about $2.5m for a renewed design study.
The project was launched in 2003 but was put on hold after the 2008 financial crisis. It has undergone several rounds of feasibility studies but remains in the study stage after nearly two decades of funding-linked delays.
The plans involve a double-rail track and additional service line stretching 38.5km between Tarifa in Spain and Tangier in Morocco. A 28km section will run under the Mediterranean Sea at a maximum depth of 475 metres.
The maximum depth of the tunnels will be 300 metres. Each single-track tunnel will have an inner diameter of 7.9 metres, while the service gallery will be 6 metres in diameter.
The two countries are developing the project jointly through Morocco’s National Society for Strait of Gibraltar Studies and the Sociedad Espanola de Estudios para the Comunicacion Fija a Traves del Estrecho de Gibraltar.
In 2006, Swiss engineering company Lombardi Engineering was selected to design the tunnel and the preliminary studies for the project were completed two years later.
Register for MEED's guest program now to access this article.
Exclusive from Meed
-
-
-
-
-
Aecom to supervise Dubai Loop construction11 May 2026
All of this is only 1% of what MEED.com has to offer
Subscribe now and unlock all the 153,671 articles on MEED.com
- All the latest news, data, and market intelligence across MENA at your fingerprints
- First-hand updates and inside information on projects, clients and competitors that matter to you
- 20 years' archive of information, data, and news for you to access at your convenience
- Strategize to succeed and minimise risks with timely analysis of current and future market trends
Related Articles
-
Iraq enters era of resilience, reform and rising risks
11 May 2026
Iraq’s projects market is at an inflection point. The country has built a sizeable and increasingly diverse projects pipeline, backed by ambitious national plans and an improving reform narrative. But according to MEED’s newly updated Iraq Projects Market report, the near-term outlook is now being tested by renewed regional volatility and persistent structural constraints at home.
Iraq is the Middle East and North Africa’s fifth-largest economy by nominal GDP, yet it remains heavily exposed to the hydrocarbons cycle. Oil and gas generate about 90% of government revenues and more than 40% of GDP, a dependency that shapes annual capital spending and the bankability of public-private partnership (PPP) deals. Earlier this year, the IMF forecast GDP growth of 3%-4%. In light of the latest regional conflict dynamics involving the US and Israel with Iran, that growth outlook is expected to soften as investor risk perceptions rise and supply chains face renewed stress.
Even so, Iraq’s projects market is not starting from a blank slate. By the end of March 2026, almost $120bn of contracts were in execution, with a further $300.4bn in the broader pipeline. The scale of that opportunity is underpinned by enduring reconstruction requirements, urgent energy-sector needs and a policy push to translate oil wealth into long-lived productive assets.
Reconstruction needs
Nearly a decade after the official end of the Islamic State conflict, Iraq’s reconstruction gap remains substantial. Estimates put the shortfall at about $88bn, reflecting the long tail of damage to housing, utilities, public buildings and transport links. Southern and central regions dominate the live pipeline, largely because they sit close to Iraq’s oil heartlands. Basra, in particular, is pivotal, anchoring major upstream activity and vital export infrastructure.
At the policy level, Iraq Vision 2030 signals a long-term ambition to diversify into tourism, agriculture, industry and digital transformation. The government’s immediate delivery vehicle is the National Development Plan (NDP) 2024-28, which commits more than $17bn a year in capital expenditure and prioritises energy, transport, housing and water infrastructure. This shift is reinforced by Iraq’s Green Growth Framework (2026), indicating that future procurement may place greater weight on efficiency, emissions reduction and climate resilience.
Macro risk
Despite policy ambition, the most immediate determinant of Iraq’s fiscal room is the oil price. A $10-a-barrel drop can reduce government revenue by an estimated $7bn-$9bn annually. Such sensitivity matters because infrastructure spending is still largely funded by the public purse. Oil price swings affect project awards, payment cycles and the government’s willingness to assume up-front capex obligations.
Iraq’s execution environment continues to be defined by bureaucratic delays, unclear land titles and opaque procurement processes. These factors can add 12-24 months to average delivery timelines. Nevertheless, there are signs of adaptation. PPP legislation is advancing, and developer-led models are gaining traction in large housing programmes. Furthermore, there is a growing reliance on international project management consultancy (PMC) firms—such as Hill International, Worley, and AtkinsRealis—to bridge capacity gaps and improve governance, cost control and scheduling.
Hydrocarbon driver
Oil and gas upstream remains the single largest driver of capital expenditure. Major developments, including the Gas Growth Integrated Project (GGIP) and Mansouriya, sit alongside a push to reduce gas flaring and expand downstream processing. The objective is to sustain export revenues while improving domestic fuel availability.
The power sector is even more urgent. Iraq faces an estimated 8-10GW generation shortfall, which keeps electricity supply at the centre of political risk. This gap is driving rapid procurement of generation capacity and grid upgrade contracts. Beyond traditional infrastructure, Iraq is also moving on digital adoption. Smart city pilots and fibre rollouts are attracting regional technology investors, while AI-enabled data centre projects are beginning to emerge.
Investment targets
Foreign direct investment (FDI) remains below $3bn a year, a low figure relative to market size. The most active investors outside the oil sector include the UAE, Saudi Arabia and Kuwait. To convert interest into deals, the National Investment Commission (NIC) is pursuing streamlined licensing and investor-protection reforms. A “one-stop shop” approach has reportedly reduced registration timelines for foreign investors from months to weeks in key sectors.
Investor protection mechanisms, such as access to international arbitration, are being strengthened, though enforcement remains a concern. Iraq’s three free zones—Basra, Karbala and Nineveh—offer additional incentives including tax holidays and customs exemptions, provided they can be paired with reliable utilities and bankable arrangements.
Conflict premium
The latest escalation involving the US and Israel with Iran has increased Iraq’s security risk premium. This is inflating materials costs and disrupting supply chains near eastern border zones. Even where projects are far from conflict areas, contractors are pricing in higher contingency for logistics and insurance. Iraq must also balance deep economic ties with Iran—particularly in energy—with Western investor expectations and sanctions-related compliance.
With more than 60% of its population under 25, Iraq has a potential demographic dividend, but it also faces immediate employment pressure and a shortage of skilled technical labour. Iraq’s projects market outlook for 2026 is best described as cautiously constructive. The pipeline is deep and the need is undeniable, but delivery will hinge on whether Iraq can translate plans into predictable execution. If progress on procurement and contract enforcement continues, Iraq can sustain a broad-based market that extends beyond hydrocarbons.
Click here to learn more about MEED’s newly updated Iraq Projects Market report
https://image.digitalinsightresearch.in/uploads/NewsArticle/16782507/main.gif -
Retal to develop project in Oman’s Sultan Haitham City
11 May 2026
Saudi Arabia’s Retal Urban Development Company has entered Oman with its first development agreement, signing a deal to build more than 2,000 residential units in Sultan Haitham City in Muscat.
In a statement to the Saudi Stock Exchange (Tadawul) on 11 May, the company said it had signed an agreement with Oman’s Ministry of Housing & Urban Planning to develop an integrated residential community at an estimated cost of SR3bn ($823m).
The community will be developed across zones 3, 15 and 17 within Sultan Haitham City, covering a total area of 1.3 million square metres.
The project will include villas and apartments, alongside commercial and mixed-use elements and community facilities.
Retal said the development will be delivered through an off-plan sales model and is expected to take nearly nine years to complete.
The first phase of the Sultan Haitham City project includes the development of a 5 square-kilometre city centre and six of the development’s 19 planned neighbourhoods. The first phase is set for completion by 2030.
US-based architectural firm SOM unveiled masterplan proposals for Sultan Haitham City in August 2024.
The final phase of the project is expected to be completed by 2045.
> Be recognised among the best in the industry at the MEED Projects Awards 2026 …
https://image.digitalinsightresearch.in/uploads/NewsArticle/16781867/main.jpg -
Qiddiya seeks firms for light rail transit system
11 May 2026
Saudi gigaproject developer Qiddiya Investment Company (QIC) has requested contractors to express interest in a contract to design and build the first phase of the light rail transit system at Qiddiya Entertainment City.
The notice was issued on 5 May, with firms given until 20 June to submit expressions of interest.
The project, also known as the Primary Urban Axis, comprises a 22-kilometre automated, driverless rail line as part of its first phase.
The contract scope includes about 16 stations – 11 elevated and five underground – along with 8km of tunnels, viaducts and other associated structures. It covers all civil, architectural, and mechanical, electrical and plumbing works.
Stations will be located at Resort Core East Village, Grand Central Station, Anime Hub Integrated Station and Primary Urban Axis 1 & 2 Hub Station.
A subsequent phase will extend the railway network by a further 11km.
QIC is accelerating plans to develop additional assets at Qiddiya City.
Separately, QIC, the Royal Commission for Riyadh City and the National Centre for Privatisation & PPP received prequalification statements from firms on 30 April for the public-private partnership (PPP) package of the Qiddiya high-speed rail project in Riyadh. This follows submission of prequalification statements for the engineering, procurement, construction and financing package on 16 April, as previously reported by MEED.
The Qiddiya high-speed rail project, also known as Q-Express, will connect King Salman International airport and the King Abdullah Financial District (KAFD) with Qiddiya City. The line will operate at up to 250 kilometres per hour, reaching Qiddiya in 30 minutes.
Contractors are also preparing bids for a 13 May deadline for a contract covering new infrastructure works at Qiddiya Entertainment City. The scope includes two infrastructure development packages for District 0, including the construction of four event park-and-ride facilities.
QIC’s other major projects include an e-games arena, Prince Mohammed Bin Salman Stadium, a motorsports track, the Dragon Ball and Six Flags theme parks, and Aquarabia.
QIC officially opened the Six Flags theme park to the public in December last year.
The park covers 320,000 square metres and features 28 rides and attractions, including 10 thrill rides and 18 aimed at families and young children.
The Qiddiya project is a key part of Riyadh’s strategy to boost leisure tourism in the kingdom.
https://image.digitalinsightresearch.in/uploads/NewsArticle/16779176/main.jpg -
RCRC awards $1bn Sheikh Jaber Al-Sabah Road contract
11 May 2026
Register for MEED’s 14-day trial access
Saudi Arabia’s Royal Commission for Riyadh City (RCRC) has awarded an estimated SR5bn ($1.3bn) contract for the construction of the Sheikh Jaber Al-Sabah Road project in Riyadh.
The contract was awarded to the joint venture of Riyadh-based Al-Rashid Trading & Contracting Company (RTCC) and Turkiye’s IC Ictas.
The project stretches 12 kilometres (km) from Khurais Road to Al-Thumama Road in Riyadh.
The Sheikh Jaber Al-Sabah Road project is a key component of the Second Eastern Ring Road scheme.
The project includes the construction of five interchanges: Prince Bandar interchange, King Abdullah interchange, Imam Abdullah interchange, Dammam Road interchange and Al-Thumama interchange.
The latest contract marks another significant project award to the RTCC-IC Ictas joint venture by RCRC.
In June 2024, RCRC awarded an estimated SR4bn ($1bn) design-and-build contract to upgrade the Wadi Laban cable bridge in Riyadh to the joint venture of RTCC and IC Ictas.
The project aims to ease traffic congestion around the Western Ring Road in the area extending from Ibn-Hazm Road to Jeddah Road. The contract also covers the construction of an intersection at Jeddah Road.
The construction of the bridge originally began in August 1993 and was completed in 1997.
The existing bridge is 763 metres long and 35 metres wide, with two 14-metre-wide carriageways.
In 2021, Saudi Arabia’s Crown Prince Mohammed Bin Salman Bin Abdulaziz Al-Saud said the population of Riyadh would double to 15-20 million people by 2030.
He directed government entities to work closely with the RCRC to prepare the city’s development strategy.
The RCRC’s major projects include Riyadh Metro, Riyadh Art, Sports Boulevard, King Salman International Park, Green Riyadh and several road development projects in the capital.
> Be recognised among the best in the industry at the MEED Projects Awards 2026 …
https://image.digitalinsightresearch.in/uploads/NewsArticle/16775717/main.jpg -
Aecom to supervise Dubai Loop construction
11 May 2026
Register for MEED’s 14-day trial access
US-based Aecom has been selected for a contract to undertake design review and construction supervision services for the Dubai Loop transportation system.
The contract was tendered by Dubai’s Roads & Transport Authority (RTA), which signed a construction agreement with Elon Musk-backed firm The Boring Company.
The first phase comprises a 6.4-kilometre route with four stations, linking the Dubai International Financial Centre (DIFC) and Dubai Mall.
Stations will be located at DIFC 2, ICD Brookfield Place, Dubai Mall Zabeel Parking and Burj Khalifa.
The first phase is expected to cost about AED565m ($154m) and be delivered within one year of design work and other preparations being completed. Tunnelling is expected to begin in the second half of this year.
The latest update follows the appointment of Parsons Corporation to deliver programme management services for the Dubai Loop transportation system.
Next phase
The second phase will connect the Dubai World Trade Centre and DIFC with Business Bay.
The tunnels will extend up to 22km and include 19 stations.
The total cost across both phases is expected to be around AED2bn ($545m), with completion scheduled within three years.
The pilot route is expected to serve around 13,000 passengers a day, while the full route is projected to have a capacity of about 30,000 passengers a day.
The RTA and The Boring Company signed a memorandum of understanding on the sidelines of the World Governments Summit in Dubai in February last year to explore the development of the Dubai Loop transportation system.
The Dubai Loop is expected to be similar to The Boring Company’s Las Vegas Convention Centre (LVCC) Loop project. The LVCC Loop is a 2.7km underground tunnel system that connects different convention centre halls, reducing walking time across the site to about two minutes.
The LVCC Loop has been in operation since 2021. It uses Tesla Model 3 cars to carry passengers between five stations. The Boring Company began construction in November 2019 at an estimated cost of $49m.
> Be recognised among the best in the industry at the MEED Projects Awards 2026 …
https://image.digitalinsightresearch.in/uploads/NewsArticle/16775632/main.jpg