WJ has recently completed the groundwater drawdown for the main excavation for a major new infrastructure development in Dubai, UAE.
The excavation footprint, measuring approximately 50m in width and 560m in length, reaches depths of over 24m at its deepest point. With the groundwater table located just 2m below ground level, maintaining dry and stable conditions throughout the excavation and construction phases was critical to ensuring the safe and timely delivery of the reinforced concrete box structure.
Working on behalf of the Main Contractor, WJ undertook detailed groundwater and pumping modelling prior to mobilisation to ensure the dewatering system was optimised for both performance and efficiency. The baseline design incorporated 42 wells, with peak abstraction rates exceeding 50 l/s.
WJ self-delivered the full dewatering scope, completing all well installations in August 2025 — ahead of programme. As with all WJ projects, the system design included full standby power with automatic mains‑failure controls, continuous remote monitoring and alarm capability, and rapid-response contingency measures. These elements underpin WJ’s 100% success record in delivering safe, reliable, and secure dewatering solutions across Dubai.
WJ will continue to support the main contractor throughout the construction period, maintaining the dewatering system until it can be safely switched off which is expected in August 2028.
The project builds on WJ’s extensive track record in metro, tunnelling, and major infrastructure works across the region, and we look forward to contributing further to Dubai’s expanding transport network.
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