Shura Island

Saudi Arabia

A part of the Red Sea Global project, WJ have been providing dewatering services on the prestigious Central Hotel on Shura Island, on the western coast of Saudi Arabia. Shura is the main hub island at The Red Sea and hotel complex. “The Coral Bloom concept, designed by lead architects Foster + Partners, will blend in with the natural environment and create a luxury experience for guests on their first arrival to the destination,” said the project’s developer, The Red Sea Development Company (TRSDC). Shura Island is in the shape of a dolphin, and the Central Hotel takes centre stage with its unique multi coloured umbrellas that cover the central hotel and the line of villas below.

To serve the main hotel and the villas and restaurants a central service tunnel runs down the spine of the island, with the sea located either side of the tunnel. The service tunnel is nearly 1km long, 60m wide, and up to 12m deep. With the Sea and a quay wall only 10m away from the excavation, WJ expertise was used to provide a robust dewatering solution.

WJ were involved right from early pre-contractor tender stage, assisting with the dewatering concept design, then undertaking pumping tests in late 2022 followed by 3D computer modelling.
At its peak 2,000 l/s of pumping capacity was installed, with over 4km of HDPE discharge lines. Due to the very fast recovery times, WJ installed multiple standby and backup features to provide a robust dewatering solution.
As part of ensuring the protection of the pristine waters and coral reefs around the island, the dewatering was carefully designed to ensure that clear water were pumped into the sea. Daily monitoring of water quality using both handheld water quality meters and laboratory tests were undertaken.

A deepwell dewatering solution was selected with French drain trenches used to expedite drawdown and intercept fissure flows in the deepest pits.
WJ would like to thank those that it partnered with to make the project a success including RSG, DAR, Ammico, G.E.T., ACES, and Greenfields.

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Engineered Solutions for Minimal Disruption

WJ offers engineered solutions that allow for the installation, operation, and shutdown of dewatering systems with minimal settlement and disruption to surrounding services and structures.

When groundwater problems arise, WJ is the company to call for innovative, practical, and reliable solutions. Partner with us for a world-class experience in dewatering and pumping.

Local and International Resources

Equipped with a large number of staff, cutting-edge equipment, and high-quality materials, WJ offers robust solutions backed by local and international resources. We adapt to the unique requirements of each project, ensuring success on a global scale.

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At our core, we are dedicated to providing exceptional service tailored to meet the diverse needs of our clients, ranging from straightforward residential dewatering solutions to the intricate demands of expansive national projects.

When it comes to large-scale national projects, we leverage our extensive experience and industry expertise to tackle intricate challenges head-on. Collaborating closely with clients, we develop strategic and customized solutions that not only meet but exceed expectations.

When designing dewatering systems, think backwards

An often overlooked aspect in dewatering system design is the safe shutdown and sealing at the end of a project. WJ adopts a unique approach, considering the project’s end before the beginning. Ultimately, the success of a basement project hinges on its dryness, aligning with its intended use, making the thoughtful conclusion of the dewatering system a pivotal factor in our methodology.

The level of allowed dampness varies based on the designated use of a space – a pump room may tolerate some, a car park less, while residential living or a library requires absolute dryness. When planning your dewatering, shoring, and waterproofing system, prioritise the client’s desired outcome. WJ frequently collaborates with consultants, shoring, and waterproofing contractors to ensure a viable and tailored solution that aligns precisely with the client’s expectations.

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Design Expertise

As co-authors of CIRIA C750 Groundwater Control: Design and Practice, we take pride in our extensive design capabilities. Our proficiency extends to 2D and 3D computer modeling, ensuring precision and effectiveness in crafting dewatering solutions tailored to your project's unique requirements.

Pumping Tests

Conducting thorough pumping tests allows us to intimately understand site conditions, providing valuable data for cost-effective installations and optimised program timelines. This not only reduces operating costs but also validates the original design, instilling extra confidence in both budgets and project timelines. Our commitment to comprehensive site understanding sets us apart in delivering efficient and reliable solutions.

Our Expert Optimisation Techniques

In the pursuit of optimal dewatering solutions, we implement a spectrum of sophisticated techniques. Empirical optimisation, grounded in extensive experience and industry-established 'rules of thumb,' enables the fine-tuning of dewatering systems. Observational optimisation relies on on-site observations, particularly monitoring drawdown versus flow, providing invaluable insights for troubleshooting when ground conditions deviate from expectations.

Analytical optimisation employs precise analytical equations to estimate essential parameters for system design. Furthermore, numerical optimisation harnesses available data to populate intricate 2D and 3D models, facilitating a comprehensive analysis through a series of refined and simplified techniques. This comprehensive and strategic approach ensures the customisation of solutions tailored to the distinct requirements of each project, reflecting our commitment to professionalism and excellence..

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