​The Public Works Authority’s Mesaimeer Pumping Station and Outfall Project has received the “Gold Award” and “Best New Entry in the Middle East” from the Royal Society for the Prevention of Accidents (RoSPA) in recognition of its health and safety performance during 2019.

The award was received by Eng. Meshaal Jarallah Abushereeda representing the Drainage Networks Projects Department at Ashghal, as part of a virtual ceremony held in the attendance of representatives from the Public Works Authority, the project’s Supervision Consultant (Mott MacDonald) and Contractor (HBK-PORR JV).

On this occasion, Eng. Meshaal Jarallah Abushereeda said: “This award is a testimony to the successful implementation of Ashghal’s strategic goal to deliver sustainable infrastructure projects with outstanding health and safety performance through collaboration with all its partners.”

Mesaimeer Pumping Station and Outfall Project

Ashghal started the construction works of the Mesaimeer Pump Station and outfall Tunnel project in May 2018, in an aim to provide a sustainable solution for the discharge of surface and storm water in the country. The project is currently progressing as per the schedule and expected to be completed in the last quarter of 2021.

The project includes the construction of the 10 km-long outfall, which is one of the longest outfall tunnels in the world. At a depth of fifteen metres below the seabed, excavation of the outfall tunnel is a major construction challenge due to the changing geological features, the ground pressure and the water pressure at this depth. Therefore, excavation is done using the Tunnel Boring Maching (TBM) with “Earth Pressure Balance” technique, designed to operate in a range of ground conditions in Qatar. A highly professional and specialised team carries out all the marine works.

The second part of the project includes a pumping station with 10 pumps and auxiliary facilities. The pumping station will be located at the end of Mesaimeer Tunnel south of Hamad International Airport. The pumping station will operate at a capacity of 19.7 cubic metres per second, and its function is to pump water from Mesaimeer Tunnel, which was completed in 2016, to the new outfall tunnel.

The project is designed to ensure the preservation of the marine environment, as the water that will be pumped complies with the international environmental standards, and it is discharged ten kilometres off-shore to reduce the effect on the marine environment.

Mesaimeer Pumping Station and Outfall is the second phase of the Overall Mesaimeer Surface and Storm Water Drainage Project, which aims to discharge the non-reusable surface and stormwater into the sea, thus decreasing the surface water level and reducing pumping costs in construction projects around the country. It will also preserve the foundations of buildings, and reduce land subsidence due to rain.