Althon have just launched a new section to their website for SFA Inlet and Outlet headwalls

✔️ All of their Sewers for Adoption (SFA) headwalls fully comply with the Design and Construction Guidance for foul and surface water sewers offered for adoption under the Code for adoption agreements for water and sewerage companies operating wholly or mainly in England, Sewerage Sector Guidance (SSG) Part C.

✔️ Compliance includes wall thickness, depth and thickness of toe options, back wall width to accept correctly sized outfall safety grille & wing wall profiles to suit bank slope.

✔️ Their headwalls are designed to BS EN 1992-1-1 & manufactured to BS EN 15258:2008 precast concrete products – Retaining wall elements. They are also covered by Factory Production Control certificate number: 0086-CPR-650448 which means they are UKCA marked.

For Inlet headwalls with a sloped spillway please visit here.

For Outlet headwalls with a flat spillway please visit here.