Concrete headwalls, precast wingwalls, spillways and other precast concrete pipe outfall structures help improve the flow of water into and out of connecting pipework and offer protection from erosion and scour caused by fast moving turbulent water. Precast headwalls also prevent the surrounding bank from eroding and sloughing into any adjacent watercourse, for example; ponds, rivers, ditches and swales
Althon have the largest range of precast concrete headwalls available in the UK, with models that meet Sewers for Adoption guidelines, a range of rectangular models conforming to Severn Trent Water specifications with an array of wingwall profiles, backwall widths and heights as well as being able to offer bespoke precast outfall and wingwall solutions.
A headwall should be fitted to drainage pipes discharging into open watercourses. Althon precast outfalls & spilways can be factory fitted with a range of accessories such as flap valves, penstocks, Kee Klamp® handrails and a selection of gratings depending on the application.
We cast pipe openings into the back wall to suit the pipe material and diameter being used for ease of installation. We will also set the invert level as requested and draw for approval prior to manufacture if required.
If you cannot find the headwall you are looking for please get in touch with us and we will be happy to assist. We are constantly uploading new drawings to our website and are confident we can provide an precast solution to meet your requirements.
If you require any assistance or more information please contact us by phone on 01603 488700 or by email email@example.com