Headwalls - from top UK suppliers

Althon's concrete angled headwalls are often specified where the outfall is on a bend and the water needs to flow from the headwall at an appropriate angle to the watercourse. Angled precast headwalls allow pipework entering a watercourse at an angle to be accommodated or for an outfall to be situated on a bend in a river. Althon cast the openings...

Althon manufactures a comprehensive range of rectangular headwalls, including versions that are SFA (Sewers for Adoption) compliant...

Althon designs and manufactures bespoke precast concrete headwalls to meet site-specific requirements where standard headwalls are unsuitable. Available as large sectional structures or single units, they can be tailored to include gratings, flap valves, trash screens, handrails, walkways and step ladders...

The CSP range of precast concrete box culvert headwalls from Althon is designed to offer a cost-effective alternative to in-situ structures for connecting pipework discharging into open watercourses. Suitable applications include swales, ponds, rivers and ditches. Units can be pre-fitted with a range of accessories including flap valves...

Althon standard precast concrete headwalls are designed for connecting drainage pipes to open watercourses. The range accommodates pipe sizes up to 2100mm, with options for multiple pipe openings and custom pipe positions. Factory-fitted accessories and compliance with UK water authority guidelines distinguish this product range...

Althon SP ‘Splayed Wing Wall Headwalls’ are precast headwalls produced with a higher wing walls at the front of the apron. SP precast headwalls are for inlets or outlets situated in locations with high or steep embankments or where the structure is required to provide protection to an accessory such as a flap valve, duck bill valve, stop logs or...

Althon small precast headwalls are suitable for pipe sizes ranging from 100mm to 450mm concrete or 600mm plastic pipework. Openings are cast to suit the outsider diameter of the connecting pipework. Small headwalls can be factory fitted with a range of accessories such as flap valves, penstocks, gratings and handrails: 100 to 450mm (concrete)...

Althon medium precast headwalls are suitable for pipe sizes ranging from 450 to 900mm concrete or plastic pipework. Headwall openings are cast to suit the outsider diameter of the connecting pipework. Medium headwalls can be factory fitted with a range of accessories such as flap valves, penstocks, gratings and handrails: SFA10 B, C and D...

Althon large precast headwalls are suitable for pipe sizes ranging from 750 to 1200mm concrete or plastic pipework. Headwall openings are cast to suit the outside diameter of the connecting pipework. Large headwalls can be factory fitted with a range of accessories such as flap valves, penstocks, gratings and handrails: h20C (two piece) headwalls...

Althon manufactures precast concrete headwalls with factory-fitted flap valves ensuring they fit properly and reducing installation time on site. Factory-fitting flap valves to headwalls means the headwalls do not have to be drilled once on site. Althon can fit multiple flap valves to a single headwall and offers flap valves fitted to concrete...

The H3G GRC headwall is a precast glass-reinforced cement headwall with an opening to suit 150mm diameter pipes and knockout webs to enlarge to 225mm and 300mm diameter pipes. Cost-effective alternative to in-situ structures for connecting drainage pipework discharging into open water courses. Nominal wall thickness 20mm. Toe depth 150mm. Stainless steel grating sockets....

FP McCann precast concrete headwalls are designed as end connection points for outfall pipes discharging into open watercourses. Precast units are intended to reduce the need for on-site shuttering and in-situ concrete work. Their use is suited to locations where access is restricted or where environmental conditions require minimal disruption...

Coloured precast concrete headwalls from Althon are particularly suitable for aesthetically-sensitive areas and can help the installation blend into the surrounding landscape. A colouring additive for cementitious materials is added, providing a uniform, streak-free colour...

Althon R7C Rectangular Headwall Range is a precast concrete headwall system for highways, motorways, and road projects, designed for pipework up to 500mm internal diameter, with multiple backwall heights and wingwall profiles: precast concrete headwall system; for pipework up to 500mm ID; multiple backwall heights: 750mm, 880mm, 1150mm; range of...

Headwalls provide much-needed protection to drainage pipes and outlets discharging water into rivers, swales, ponds and ditches. A suitable headwall will protect the area surrounding the culvert from erosion whilst retaining the embankment. As a result, the efficiency and longevity of the culvert is increased. Rootlok headwalls offer an effective...

Althon Headwalls are made from precast concrete for connecting pipes, culverts, and box culverts to open watercourses. To prevent erosion, the range includes models for standard, angled, rectangular, and bespoke applications, with options for factory-fitted accessories and compliance with UK water authority standards: precast concrete headwalls...

Althon Sewers for Adoption (SFA) precast concrete headwalls are suitable for connecting pipework to open watercourses, and designed for compliance with Sewerage Sector Guidance and Section 104 Agreements. The range supports single or multiple pipe openings, pipe sizes up to 1500mm, and various backwall heights and toe depths, with options for...

Althon culvert headwalls recess the inflow and outflow at the end of the pipe or culvert into the slope to improve entrance flow conditions, and to anchor the pipe and prevent disjointing due to excessive velocities...

Althon precast concrete headwalls can be supplied to site with factory-fitted penstocks. As standard, Althon offers penstocks fitted to headwalls to suit pipework from 200 up to 1500mm. When required, Althon can provide bespoke sized penstocks or headwalls....

Althon SFA Headwalls with Precast Steps are precast concrete headwalls designed for Sewers for Adoption compliance, integrating precast steps, outfall safety grilles, and galvanised steel handrailing with gated access. Made to suit various pipe diameters and types, these headwalls can include fixings for gratings, trash screens, flap valves...

The SFA6 is a Sewers for Adoption precast concrete headwall suitable for internal pipe diameters of up to 300mm. It is designed for applications where a smaller than normal footprint is required. The headwall is available in a choice of three backwall heights and three wing wall profiles. Toe depths up to 1000mm are available in 300 or 500mm...

Althon supplied over 20 headwalls to the Beccles Southern Relief road which stretches from London Road (A145) to Ellough Road (C969). The road was built by Jacksons Civil Engineering and will lower the impact of HGVs in Beccles, providing them with an alternate route around the town. Althon supplied precast concrete headwalls to the new relief...

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...

RSFA11 are Sewers for Adoption compliant precast concrete headwalls for outfalls discharging into ponds, swales, ditches beaches and rivers. RSFA precast headwalls come with the option of two thicknesses of toe, 300mm and 500mm, each of which is available in three depths. RSFA 11 precast concrete headwalls are available with both sloped and...