SUDs Design and Drainage Strategy

Our drainage strategy will make an assessment of all available surface water drainage options for the development site and show that the rate of surface water discharge (runoff) will not exceed the existing site conditions.

For proposed greenfield development sites, the strategy will consider the topography, ground conditions and the proximity to watercourses and surface water public sewers in relation to surface water drainage requirements.

Achieving water management targets then involves the appropriate inclusion of features such as soakaways, infiltration basins, swales, permeable pavements, filter strips and balancing ponds.

Our expertise in the design, selection and layout of such features enables us to deliver solutions that are sustainable, cost effective and meet with the required local and national standards.

If the development is on a previously developed ‘brownfield’ site, the strategy will seek to utilise the existing discharge disposal arrangement to watercourses, soakaways or public sewers.

The accompanying foul water drainage strategy will consider the proximity and capacity of existing foul water public sewers and also the site topography. We will recommend a capacity check to check if an upgrade of the existing foul water public sewer network is required to meet sustainability targets and not overwhelm the current provision.

Syntegra has experts specialising in flood risk, below ground drainage design, highways design, transportation, foul sewage and utilities assessment, geotechnics and land quality to inform critical decisions on infrastructure design. It’s an illustration of the importance of getting infrastructure right to ensure a site works seamlessly for all parties and provides ‘best value’ engineering.