Located on the southern shore of the Arabian Gulf, Abu Dhabi in the United Arab Emirates is characterized by an arid climate, scarce rainfall, extreme summer temperatures that can exceed 50°C, and severe freshwater shortages. Much of the landscape is dominated by desert terrain. Yet along the boundary where desert meets sea grows one of the region’s most valuable ecological treasures—the mangrove forest. Known as the “lungs of the sea,” mangroves are among the few trees capable of thriving in saline environments. They help trap sediment, improve water quality, protect coastlines from erosion and storm surges, and create unique natural landscapes that attract visitors from around the world.
The Abu Dhabi Mid-Island Parkway 1B Undersea Tunnel Project, jointly contracted by China Railway International Group and local partner YasProjects, with participation from China Railway Tunnel Group, is a high-standard marine infrastructure project in Abu Dhabi. The approximately 2,701-meter subsea crossing links Saadiyat Island and Umm Yifenah Island. Throughout construction, the project team has strictly adhered to environmental protection requirements, prioritizing mangrove conservation and minimizing impacts on the surrounding marine ecosystem while contributing to the development of a sustainable and environmentally friendly city.
Careful Transplantation with Ecology as the Priority
Before construction began, the project team conducted a comprehensive survey of existing mangrove habitats and accurately mapped protected areas. Mangroves located within the construction zone were carefully transplanted in accordance with environmental regulations to create the necessary working space. As the tunnel project approaches completion, the team plans to reintroduce and restore mangrove habitats through scientific site planning and cultivation of native seedlings, ensuring the long-term recovery of this vital coastal ecosystem and promoting harmony between infrastructure development and environmental stewardship.
Physical Barriers for Environmental Protection
To prevent the spread of suspended sediments generated during tunnel construction and dredging activities, the project installed high-standard silt curtains around the work zone. These protective barriers effectively isolate construction areas from surrounding waters, containing turbidity within designated boundaries and helping preserve the clarity of the adjacent marine environment. This proactive measure minimizes the risk of pollution at its source.
Real-Time Monitoring to Protect the Blue Waters
Beyond physical protection measures, the project has established a comprehensive water quality monitoring system. Through continuous real-time monitoring, the team tracks changes in water conditions and analyzes key environmental indicators, allowing for the prompt implementation of mitigation and management measures when necessary. This dynamic approach—combining construction, monitoring and optimization—helps reduce environmental impacts to the greatest extent possible.
Farzan Pervaiz, an environmental monitoring assistant for the Abu Dhabi Mid-Island Parkway 1B Project, said: “Chinese companies place great importance on environmental protection. They continuously refine construction plans and take meticulous care of the natural environment. Although the tunnel is still under construction, the surrounding waters remain clear and the nearby mangroves continue to thrive. Environmental protection has been integrated into every stage of the project and every construction activity. I am proud to be part of such a responsible team and to contribute to the development of our beautiful community.”
From transplanting a single mangrove seedling to protecting an entire coastal ecosystem, Chinese enterprises have demonstrated that major infrastructure development and environmental conservation can advance hand in hand. Through a combination of protective transplantation, sediment-control barriers, and real-time environmental monitoring, the project has maintained construction progress while safeguarding ecological integrity. These efforts have enabled local communities and stakeholders to witness firsthand a development philosophy that treats host countries as a second home and regards environmental protection as a fundamental responsibility. In doing so, the project has become a vivid example of the Green Belt and Road Initiative in practice.
