Design ID undertook the Civil and Structural Engineering design for this complex project in Wales, collaborating closely with all stakeholders to proactively identify and address potential risks. The site presented significant challenges due to its steep gradients and pronounced slopes, particularly descending from the northwest to the southeast. These sharp elevation changes necessitated detailed analysis and innovative solutions to ensure the seamless integration of the proposed design within the complex topography. Determining the site levels proved highly intricate, requiring the implementation of retaining walls to stabilize the terrain and accommodate the design requirements.
To overcome these challenges, the DID project team devised an innovative pavement and kerb layout, incorporating permeable surface materials wherever feasible. This strategy mitigated surface runoff by enabling water infiltration through the pavement, thereby improving site drainage and alleviating pressure on the surrounding drainage infrastructure.
As part of the drainage solution, the team integrated Sustainable Drainage Systems (SuDS) planters. These planters efficiently captured and temporarily stored rainwater, which was subsequently conveyed through a perforated pipe beneath each planter. The water was then gradually released into the surrounding environment, fostering sustainable water management, and minimizing environmental impact.
The pavement and kerb design employed permeable asphalt cell web technology, providing a stable, load-bearing surface for both vehicular and pedestrian use. This system minimized environmental disturbance by being installed directly on the existing ground surface, eliminating the need for excavation or root severance. As a result, trees designated for retention were preserved, ensuring the site's natural elements were protected while achieving durability and functionality.
The drainage infrastructure also featured a rainwater harvesting system, which collected water from building roofs via downpipes and stored it in underground tanks for filtration and reuse. This sustainable measure reduced water consumption costs and promoted resource efficiency. Additionally, a soakaway structure was implemented to manage excess surface water, allowing gradual infiltration into the ground, and preventing water accumulation and runoff.
A critical aspect of the project involved rerouting an existing surface water line that originally ran beneath the building. The pipeline was successfully diverted around the structure and reconnected to the existing network on the opposite side, maintaining uninterrupted water flow and safeguarding the building’s structural integrity.
Through meticulous planning and innovative design, the DID project team effectively addressed the site's challenging terrain, delivering sustainable and environmentally conscious solutions that harmonized with the natural landscape.
Design ID provided comprehensive support services throughout the construction phase of the project. This included successfully completing a Section 106 application to facilitate the foul water connection to the public network.
The team also efficiently addressed queries and overcame challenges posed by the site’s complexity, ensuring smooth progress and compliance. For example, when discrepancies between the topographical survey and site conditions were identified, they developed solutions and coordinated with subcontractors to align the design with actual levels. Design ID also ensured all design changes met compliance and adoption requirements by Ancala Water Services, leading correspondence to secure the drainage network's adoption for maintenance.
Client: Reds10
