Remedial Grouting at Mosul Dam, Iraq-Video

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Video Summary

Mosul Dam, located on the Tigris River in Iraq, was built on soluble gypsum and anhydrite layers that weakened its foundation and raised concerns about catastrophic failure. From 2016, Trevi, with the U.S. Army Corps of Engineers, rehabilitated the grout curtain while the dam remained operational. The complex work involved thousands of boreholes, more than 40,000 cubic meters of grout, and automated monitoring. Testing showed reduced permeability, and a new risk assessment found the dam’s risk significantly lower. The project also trained 150 Iraqi water-resources staff and recorded eight million work hours without a lost-time accident.

Keywords

Mosul Dam

grout curtain rehabilitation

Iraq water infrastructure

dam safety risk assessment

Trevi U.S. Army Corps of Engineers