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Up to 16.5m3 of water flows through the Abu Hamour drainage tunnel every second, meaning it could drain an Olympic swimming pool in around two and a half minutes.
The project involves the design and construction of a storm water tunnel and access shafts in Doha along the route of the proposed F-Ring Road from Musaimeer Street to the New Doha International Airport.
The Abu Hamour tunnel is 9.5km-long and 3.7m-wide and the location — a hot and humid environment with a high concentration of chlorides and sulphates in the soil and groundwater – meant an innovative design was required to achieve the specified design life of 100 years.