Mosul Dam Rehabilitation Wins Outstanding Project Award

The Mosul Dam Rehabilitation Project in Iraq has been named the winner of the 2022 Outstanding Project Award from the Deep Foundation Institute (DFI).

The Mosul Dam on the Tigris River dates from the 1980s and is the tallest in Iraq with a height of 113 m (371 ft) and a length of 3.65 km (2.3 mi). Even during the construction phase, the engineers were aware of the weakness of the foundation rock and the contractors encountered cavities during the excavation. Due to political pressures and timing, work continued. Despite major injection efforts, water seepage began immediately after the dam was commissioned.

In March 2016, Trevi, SpA – which submitted the project for the award – took over the contract to carry out the maintenance injection, as well as the training of the owner’s personnel and the rehabilitation of the bottom outlet tunnels through works electromechanical and diving operations. From 2016 to 2019, Trevi completed approximately 403,000 linear m (1,322,178 lft) of cemented drilling, grouting approximately 41,000 m3 (53,626 cu yd) of grout into the ground. Trevi has also created courses in modern equipment and techniques as part of its mission to hire and train owner personnel.

Trevi carried out work on the dam when it was only 13 km (8 mi) from the armed conflict against the Islamic State. Fortunately, the presence of coalition forces, as well as the Italian army, guaranteed the required security of the project area. Despite the strict security procedures, the work proceeded quickly and without delay. The workforce numbered over 700 people and the project recorded 8 million accident-free working hours.

Created in 1997, the Outstanding Project Award recognizes the superior work of DFI members. A committee selects projects based on the size, scope and challenges of the project; degree of innovation and ingenuity exercised; and the uniqueness of the solution to the difficulties of the work.

The award is presented at DFI’s 47th Annual Deep Foundation Conference, October 4-7 in National Harbor, Maryland.

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