Headwalls - from top UK suppliers

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'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...

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 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...

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....

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...

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...

Althon supplied eight SFA15 B precast concrete headwalls, complete with 650 x 300mm toes, Kee Klamp handrail and SFA outfall safety grilles, to Barratt Homes in Uttoxeter. New-build housing developments in the UK are incorporating balancing ponds, also known as attenuation ponds, into estates which form part of the sustainable drainage...

Althon supplied several precast concrete headwalls as part of the Arbroath Flood Prevention Scheme, including an SP15J headwall and, either side of the channel, AH12CB LH and RH precast concrete headwalls, plus smaller AH4CB LH and RH headwalls. The scheme is designed to reduce the risk of flooding from the Brothock Water, which runs...

Althon supplied a bespoke precast concrete headwall to Cyrddan Brook in Wales. The headwall needed to be rectangular and accommodate a 1050mm ID PCC pipe. The company was able to design a suitable headwall plus factory-fit Kee Klamp handrail and a cranked grating complete with catwalk, which made installation much faster and safer....

Rectangular Channel Headwalls are made from precast concrete for managing outfalls, with backwall heights from 775mm to 1275mm and pipe openings up to 750mm diameter. Single or multiple pipe openings, channel extensions, and fittings for gratings, handrails, and flow control devices are available: precast concrete headwall for rectangular channels...

Althon supplied 10 precast concrete headwalls for the A4119 dualling scheme at Radyr in Wales. All of the headwalls required factory-fitted accessories such a Kee Klamp handrail, gratings and aluminium stop logs. Having the accessories factory-fitted saves time on installation and has health and safety benefits. The construction phase of this...

Althon sloped trash screens with a 45° rake are manufactured in galvanised mild steel: 40 x 10mm flats at 75mm centres, and 50 x 12mm flats at 100mm centres; designed to suit pipework up to and including 1500mm; manufactured to any size and specification required outside of the standard range, if required; also available in stainless steel, on...

Trash screens made from galvanised mild steel or stainless steel, to fit pipework up to 1500mm. Screens have a 60-degree rake, with 40 x 10mm or 50 x 12mm flats, spaced at 75mm or 100mm centres. Designed for use with precast, in-situ, or brick headwalls and outfalls: sloped trash screens for pipework up to 1500mm with a 60-degree angle; made from...

Althon can produce bespoke gratings and trash screens for in-situ structures and precast headwalls to any specification. Gratings are typically manufactured in either galvanised steel, stainless steel grade 304 or grade 316. Other materials can be discussed if required. Cranked gratings are manufactured for use with flow control devices such as...

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...