
Manholes
Excavation Depth
Pipeline Length
Pipeline Diameter
34 km of GRP pipelines installed using advanced micro tunnelling methods, ensuring seamless and efficient wastewater flow.
Over 130 manholes and 129 driving and receiving pits constructed, with excavation depths reaching up to 14 meters for enhanced durability.
Demolition of 12 outdated pump stations enabled the integration of a more resilient and sustainable sewer network.
The Construction of Trunk Sewer project stands as a major milestone in strengthening Abu Dhabi’s core wastewater infrastructure. The project encompassed the installation of GRP pipelines ranging from 500 mm to 2800 mm in diameter, deep manhole construction, tunnelling works, and secant pile wall systems for soil stabilization. Comprehensive excavation and precision alignment ensured structural integrity, hydraulic efficiency, and long-term operational reliability.
Delivering underground excellence through engineering innovation and sustainable design, this initiative reflects GCC’s capability in managing technically demanding, large-scale infrastructure works. With meticulous planning, environmental responsibility, and the use of cutting-edge tunnelling techniques, the project enhances the city’s urban resilience and readiness for future expansion while supporting its sustainability goals. It remains a benchmark for advanced utility infrastructure, showcasing GCC’s precision, performance, and enduring commitment to excellence.
