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Drainage-1
Drainage-1

Drainage & Sustainable Drainage Systems (SuDS)

The Local Planning Authority and the Lead Local Flood Authority consultee usually require development proposals to be supported by a Drainage Strategy required to demonstrate how surface water run-off and foul flows will be managed.

Drainage Strategy will determine the most effective form of drainage management compliant with the standard drainage hierarchy ensuring the most appropriate form of sustainable drainage system is employed, reducing flood risk elsewhere for the lifetime of the development.

Drainage Design Services: 

 

  • Sustainable drainage systems (SuDS)
    • Rainwater harvesting
    • Green roofs
    • Infiltration
    • Pervious pavements
    • Attenuation tanks
    • Detention basins
    • Ponds and wetlands
  • Section 104/102 adoption
    • Foul and surface water sewers and lateral drains
    • Pumping stations
  • Section 38 adoption
    • Highway drainage
  • Building Regulations Part H
    • Plot drainage
  • Land Drainage
    • Watercourse culverting
    • Water abstraction
  • Section 104/102 and Section 38 adoption surveys

Early discussions are important to ensure the site layout has provision for above ground SuDS, such as swales, filter strips, detention basins and wetland ponds where possible, in preference to traditional drainage solutions.

Specific assessment of the site, ground conditions, topography and infrastructure, conducted at the earliest stage will help inform the site layout to ensure the most effective, efficient and sustainable drainage solutions are integrated throughout the development.

 

Adoptable drainage and pumping station design to The Water UK Sewerage Sector Guidance, appropriate for adoption by Water and Sewerage Companies under Section 98, Section 104 and Section 185 of The Water Industry Act, and adoption by Highways Authorities under Section 38 and Section 278 of The Highways Act.

 

Other drainage designs to the Building Regulations, The SuDS Manual and BRE Digest 365, BS8297, Environment Agency General Binding Rules for non-mains drainage application requiring sewage treatment plant and effluent dispersal drainage field.

“The Flood Risk Assessment is a thorough appraisal of the relevant issues and potential sources of flooding and is to be applauded.”

 

– Environment Agency consultation response to Exmoor National Park Authority (residential development in Dulverton)