The Althon standard range of headwalls can accommodate pipework up 2100mm. We can precast multiple pipe openings into our outfalls if required. As standard we will cast in the pipe openings 100-150mm above the spillway. However we are able to cast in the opening for the connecting pipe or pipes anywhere on the backwall or in the wingwalls (sidewalls). Drainage pipes discharging into open watercourses should be fitted with a concrete headwalls. Althon's standard concrete headwalls are fast and easy to install.
All Althon headwalls can be factory fitted with accessories such as outfall safety grilles, Kee Klamp® handrails, flap valves and penstocks. We are also able to provide additional precast elements, such as diffuser blocks, stepped baffle blocks, extended spillways with cascade panels and in some instances precast steps. We are happy to help design a precast concrete outfall & spillway to your site specific requirements.
Althon have the largest range of precast headwalls with associated accessories available in the UK. If you cannot find the product you are looking for please get in touch with us and we will be happy to assist. We are constantly uploading new ranges and new drawings to our website, we are confident we will be able to meet your spillway and outfall requirements.
If you require any assistance or more information please contact us by phone on 01603 488700 or by email firstname.lastname@example.org