Standard Precast Concrete Headwalls

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.