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Deep Tunnel Storm Water System
Project overview
Awarded to the Six Construct – PORR joint venture, the Deep Tunnel Storm Water System represents a significant step forward in sustainable urban infrastructure. The project involved the construction of a 10-kilometre tunnel with a boring diameter of 11.05 metres, located between 30 and 45 metres below ground level. Designed to improve storm water management across Dubai, the system serves an urban area of approximately 380 km², covering almost 40% of the city.
Scope of the works
The project comprised the design and construction of a deep storm water collection and conveyance system. At its core is a 10 km tunnel excavated at depths ranging from 30 to 45 metres. In addition, four deep shafts, between 40 and 45 metres deep, were constructed to connect the collection chambers. These chambers gather groundwater and storm water and channel it efficiently through the system, providing a long-term solution for water management in one of the world's fastest-growing urban environments.
Key highlights
10 km tunnel with an 11.05 m boring diameter
Tunnel constructed at depths of 30 to 45 m below ground level
Four deep shafts ranging from 40 to 45 m in depth
Collects and conveys groundwater and storm water
Serves approximately 380 km² of urban area
Drains nearly 40% of Dubai's total urban area
