
For this project, full drainage models were created for both the storm and foul, incorporating the restricted discharge rates for the storm and resulting attenuation requirements. Due to the nature of the project, siphonic drainage was specified to enable the maximum efficiency in distributing the flows from the roof areas to the proposed drainage. Petrol interceptors were sized and specified for the project, ensuring that only clean storm flows outfall to the existing watercourse. CWA worked alongside the design team discussing ground improvement, enabling works & infrastructure requirements and as part of the initial design. The team subsequently carried out tender designs for all of the civil and structural engineering aspects coordinating with the wider team during tender period.
After the tender stage CWA were novated to the successful contractor and have carried out detailed design for all non-specialist design items whilst assisting coordination with the specialist items such as the dock levellers and precast stair cases.