Althon manufacture rectangular Sewers for Adoption (RSFA) precast concrete headwalls, for outfalls discharging into ponds, swales, ditches, beaches, and rivers. Compliant with Sewers for Adoption standards and Severn Trent Water STD6002 for pipework up to 600mm. Options for toe thickness, wall profile to suit bank gradients, and can be supplied with handrails, access ladders, and safety grilles.

  • Precast concrete headwalls for outfall applications up to 600mm pipework

  • Compliant with Sewers for Adoption and Severn Trent Water STD6002

  • Choice of toe thickness (300mm or 500mm) and three wall profiles for different bank slopes

  • Factory-fitted options include handrails, access ladders, and self-closing gates

  • Backwall opening cast to suit pipe size and invert level

  • Accommodates safety grilles and other accessories

Applications

  • Ponds

  • Swales

  • Ditches

  • Beaches

  • Rivers

  • Surface water outfalls

Dimensions

  • Toe thickness: 300mm or 500mm

  • Pipework capacity: up to 600mm

Options and variations

  • Three wall profiles for 1:1, 1:2, and 1:3 bank slopes

  • Multiple depths and toe thicknesses

  • Handrails, ladders, and self-closing gates can be included

  • Backwall opening cast to required pipe size and invert level

Accreditations

  • Compliant with Sewers for Adoption

  • Manufactured to Severn Trent Water STD6002