meed-logo

line1 line2 line3
SIGN IN / REGISTER

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.

https://image.digitalinsightresearch.in/uploads/NewsArticle/11087697/main.jpg
Yasir Iqbal

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

Click here to register
Exclusive from Meed
Related Articles
  • Firms submit Jebel Ali sewage PPP prequalifications

    24 July 2026

     

    Dubai Municipality received statements of qualification on 23 July from firms interested in delivering phase three of the Jebel Ali sewage treatment plant (STP) expansion project.

    Known as DS150/3, the project will be delivered under a public-private partnership (PPP) model on a design, build, finance, own, operate and transfer basis.

    The project involves the development of a new water resource recovery facility with an ultimate treatment capacity of up to 1 million cubic metres a day (cm/d).

    It is being procured through Dubai Municipality’s sewerage and recycled water projects department and will be delivered via a two-stage operational approach over a 30-year concession period.

    It is understood that the following firms are among those likely to qualify for the project:

    • Acciona (Spain)
    • Alkhorayef (Saudi Arabia)
    • Besix (Belgium)
    • Etihad WE (UAE)
    • GS Inima (Spain)
    • Metito (UAE)
    • Miahona (Saudi Arabia) 
    • Samsung E&A (South Korea)
    • Saur (France)
    • Suez (France)
    • Taqa Water Solutions (UAE)
    • Veolia (France)

    The municipality issued a request for qualifications notice in May with an intial bid submission deadline of 18 June. UK-headquartered Deloitte is acting as financial adviser, Aecom is the project's technical adviser and CMS is the legal adviser.

    Dubai Municipality said the project will also include additional land uses and community-focused amenities as part of broader sustainability and urban integration objectives.

    Phase one and two expansion

    On 9 July, firms submitted bids for an engineering, procurement and construction contract covering the expansion of the Jebel Ali STP phases one and two.

    Located on a 670-hectare site in Jebel Ali, the original wastewater facility has a treatment capacity of about 675,000 cm/d, following the completion of phase two in 2019, combining approximately 300,000 cm/d from phase one and 375,000 cm/d from phase two.

    The upgraded facility will be capable of treating an additional sewage flow of 100,000 cm/d, with the expansion estimated to cost $300m.

    UK-headquartered KPMG and UAE-based Tribe Infrastructure are serving as financial advisers on the project.

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

    Stress test for Gulf aviation; Mixed performance as country outlooks diverge in the Levant; GCC tourism sector pivots from crisis to recovery mode.

    Distributed to senior decision-makers in the region and around the world, the July 2026 edition of MEED Business Review includes:
    To see previous issues of MEED Business Review, please click here
    https://image.digitalinsightresearch.in/uploads/NewsArticle/17735401/main.jpg
    Mark Dowdall
  • Contractors submit interest for Riyadh Expo substructure

    24 July 2026

     

    Contractors have submitted expressions of interest on 23 July for a contract to deliver the early works and substructure works for several assets at the Expo 2030 Riyadh site.

    Expo 2030 Riyadh Company (ERC) is tasked with delivering the Expo 2030 Riyadh venue. Saudi sovereign wealth vehicle, the Public Investment Fund, launched ERC – a wholly owned subsidiary – in June 2025 to build and operate facilities for the event.

    The assets include the Icon; the convention centre; and thematic pavilions, including the Culture of Wisdom, Place & Planet and Adaptation & Innovation pavilions.

    The Icon will be located at the entrance of the Expo 2030 Riyadh site, within the Collaboration Precinct.

    The structure will be connected to the metro station and will serve as a gateway to the event.

    It will be 66 metres tall and will comprise an observation platform, food and beverage (F&B) outlets and other features.

    The convention centre will cover about 22,000 square metres. It will be the first point of arrival for visitors to the expo.

    The Culture of Wisdom pavilion will be a 25-metre-tall building that will feature exhibition galleries, innovation laboratories and conference and learning spaces.

    The Place & Planet building will also be 25 metres tall, and will include indoor and outdoor exhibition spaces, F&B and retail facilities and support areas.

    The Adaptation & Innovation pavilion will be located within the Loop of Nations precinct and will comprise a 29-metre-tall building.

    Construction progress

    The tendering of the pavilion structures followed progress on the site’s infrastructure development works.

    In April, ERC awarded two contracts for the next phase of infrastructure works at the site to local firm Al-Yamama Company.

    The scope covered the construction of road networks and infrastructure for water, sewage, electricity, telecommunications and electric vehicle charging.

    These awards followed ERC’s January award of an estimated SR1bn ($267m) contract for initial infrastructure works at the site to local firm Nesma & Partners. That scope covered about 50 kilometres of integrated infrastructure networks, including internal roads and essential utilities such as water, sewage, electrical and communications systems, and electric vehicle charging stations.

    The overall infrastructure works – covering the construction of main utilities and civil works at Expo 2030 Riyadh – are split into three packages:

    • Lot 1 covers the main utilities corridor;
    • Lot 2 includes the northern cluster of the Nature Corridor;
    • Lot 3 comprises the southern cluster of the Nature Corridor. 

    The masterplan encompasses an area of 6 square kilometres, making it one of the largest sites ever designated for a World Expo event. Situated to the north of the Saudi capital, the site will be located near the future King Salman International airport and will provide direct access to landmarks within Riyadh.

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

    Stress test for Gulf aviation; Mixed performance as country outlooks diverge in the Levant; GCC tourism sector pivots from crisis to recovery mode.

    Distributed to senior decision-makers in the region and around the world, the July 2026 edition of MEED Business Review includes:
    To see previous issues of MEED Business Review, please click here
    https://image.digitalinsightresearch.in/uploads/NewsArticle/17739044/main.jpg
    Yasir Iqbal
  • Oil price rises above $100 a barrel after Red Sea attacks

    24 July 2026

    Oil prices rose to their highest level in nearly two months on 23 July after the latest escalation in the US-Iran conflict threatened severe new disruptions to global energy supplies.

    Global benchmark Brent crude closed 7% higher, at $100.69 a barrel on 23 July. Earlier in the trading day, it rose as high as $102 a barrel. That is its highest level in eight weeks, since the end of May.

    Brent was trading at over $100 a barrel in the early hours of 24 July, but later pared gains to settle around $99.63 a barrel as of 11am Gulf Standard Time (GST).

    The surge in the Brent price came after Iran-backed Houthi rebels claimed attacks on two Saudi oil tankers in the Red Sea following their announcement of a naval blockade on Saudi Arabia.

    It appeared to be the first time since the regional war began that attacks on oil tankers and other commercial ships had extended beyond the Strait of Hormuz, opening up a new front in the volatile conflict.

    The Houthi threat is unsettling to oil markets because millions of barrels a day pass through the Bab El-Mandeb Strait to reach global markets.

    ALSO READ: Opec+ holds the line on unwinding of production cuts

    About 12%-15% of global maritime trade, worth more than $1tn, transits the waterway every year.

    It has also served as an alternative to the Strait of Hormuz, where traffic remains largely at a standstill, with ship crossings falling to single digits on 21 July.

    Since the start of July, oil prices have risen about 35%. Those prices are more than 60% higher than at the start of the year. This has erased much of the progress made in bringing prices down after the US and Iran signed a memorandum of understanding in mid-June.

    The interim peace deal has now collapsed, with US President Donald Trump threatening on 22 July to blow up an Iranian bridge or power plant for every vessel Tehran attacks.

    This was followed by the Houthi claim to have hit two tankers in the Red Sea.

    The UK’s Maritime Trade Office reported a tanker “struck by an unknown projectile” north of the Bab El-Mandeb Strait, and state-run Saudi Press Agency (Spa) reported that a vessel named Encelia was set ablaze by an attack while it was sailing overnight in the Red Sea, citing an unidentified source from the General Authority of Transport. Spa did not mention the other vessel, which is understood to be called Layla.

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

    Stress test for Gulf aviation; Mixed performance as country outlooks diverge in the Levant; GCC tourism sector pivots from crisis to recovery mode.

    Distributed to senior decision-makers in the region and around the world, the July 2026 edition of MEED Business Review includes:
    To see previous issues of MEED Business Review, please click here
    https://image.digitalinsightresearch.in/uploads/NewsArticle/17739553/main4051.jpg
    Indrajit Sen
  • Qiddiya tenders Dragon Ball theme park package

    24 July 2026

     

    Qiddiya Investment Company (QIC) has tendered a contract to undertake the back-of-house works on the Dragon Ball theme park in Qiddiya, Saudi Arabia.

    The scope covers the construction of plant rooms, facilities management buildings, workshops, storage warehouses and central processing kitchens.

    It also includes a monorail service depot, a fire station, parking, utilities and other associated infrastructure.

    The bid submission deadline is 13 September.

    The Dragon Ball theme park will cover more than 500,000 square metres and will have seven themed zones inspired by the Japanese media franchise, including Kame House, Capsule Corporation and Beerus’ Planet.

    The park will offer more than 30 rides with five main attractions, including a rollercoaster that passes through a 70-metre landmark based on the series’ wish-granting dragon Shenron. 

    The development will also include themed hotels.

    In September 2024, US-based firm Falcon’s Creative Group announced that it is undertaking the masterplan and attraction design and is the creative lead for the theme park.

    QIC formally launched the Dragon Ball theme park in March 2024.

    The announcement came after QIC signed an agreement with Japanese firm Toei Animation, the producer of the Dragon Ball anime series.

    The Dragon Ball theme park is one of several major projects within the wider Qiddiya development. Other projects include an e-games arena, Prince Mohammed Bin Salman Stadium, a horse racing venue, a performing arts centre, the Speed Park and Six Flags theme parks and Aquarabia waterpark.

    The 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.

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

    Stress test for Gulf aviation; Mixed performance as country outlooks diverge in the Levant; GCC tourism sector pivots from crisis to recovery mode.

    Distributed to senior decision-makers in the region and around the world, the July 2026 edition of MEED Business Review includes:
    To see previous issues of MEED Business Review, please click here
    https://image.digitalinsightresearch.in/uploads/NewsArticle/17738622/main.jpg
    Yasir Iqbal
  • Saudi Arabia appoints developer for hybrid power plant

    24 July 2026

     

    Saudi Arabia-based Lamar Holding has signed a contract to develop a hybrid power plant at the Empty Quarter (Rub Al-Khali) land port in Saudi Arabia, according to a source.

    The public-private partnership (PPP) project aims to reduce diesel fuel use with renewable energy and ensure a long-term power supply at the Empty Quarter land port. It includes the construction of 15MW of total hybrid installed capacity, installation of a 7 megawatt-peak solar photovoltaic system and eight 1MW internal combustion engines.

    In March, MEED exclusively reported that Lamar had been given preferred bidder status and was in advanced discussions with Saudi Arabia’s Zakat, Tax & Customs Authority (Zatca) for the contract.

    MEED understands that the proposed plant will have the capacity to produce 25 gigawatt-hours of electricity annually. It will be implemented under a design, build, finance, operate, maintain and transfer contract model for 25 years, excluding the construction period.

    US/India-based Synergy Consulting is acting as financial advisor to Lamar on the project. Egyptian firm Eternal Consultation Engineering Services is acting as the technical support consultant and Dubai-headquartered Aktech is the technical consultant for the project.

    Lamar Holding and Dubai’s SirajPower submitted bids for the Empty Quarter hybrid power plant project in July 2025, as previously reported by MEED.

    Zatca, in collaboration with the National Centre for Privatisation & PPP, had previously prequalified the following four companies to bid for the contract in October 2024:

    • Alfanar Company (Saudi Arabia)
    • Lamar Holding (Saudi Arabia)
    • Olayan Energy (Saudi Arabia) / Enerwhere Sustainable Energy (UAE)
    • Siraj Power for Renewable Energy (UAE)

    Prior to that, in July 2024, 12 Saudi companies and local branches of international companies, along with 11 overseas-based companies, submitted statements of qualifications for the contract.

    In addition to building and operating the power plant, the project scope includes ensuring the facility operates to defined requirements and output specifications. It also involves managing power generation and the connection to the Zatca interface point for the entire project term.

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

    Stress test for Gulf aviation; Mixed performance as country outlooks diverge in the Levant; GCC tourism sector pivots from crisis to recovery mode.

    Distributed to senior decision-makers in the region and around the world, the July 2026 edition of MEED Business Review includes:
    To see previous issues of MEED Business Review, please click here
    https://image.digitalinsightresearch.in/uploads/NewsArticle/17733327/main.jpg
    Mark Dowdall