Precast Concrete Headwalls

Precast Concrete Headwalls Video

Precast concrete headwalls offer a cost effective alternative to in-situ headwall structures for pipework and concrete box culverts discharging into open watercourses such as rivers, ditches, ponds, swales and tidal environments.

Althon have the largest range of precast concrete headwalls available in the UK. We have concrete headwalls to meet Sewers for Adoption guidelines, a range of rectangular headwalls to conform to Severn Trent Water specifications and have headwalls with an array of wingwall profiles, backwall widths and heights as well as being able to offer bespoke precast headwall and wingwall solutions.

Drainage pipes discharging into open watercourses should be fitted with a concrete headwall. Althon precast headwalls 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 openings into the back wall of our precast concrete headwalls 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 new precast headwalls to our range and we are confident we will be able to provide the headwall you require.

If you require any assistance or more information please contact us by phone on 01603 488700 or by email sales@althon.co.uk

Headwall Specifier

Headwall Specifier

Use the Althon Headwall Selector to help find the most suitable Headwall unit for your project

Standard Precast Concrete Headwalls

Standard Precast Concrete Headwalls

Althon Precast Headwalls are a cost effective alternative to in-situ structures for connecting pipework discharging into open water courses

Sewers for Adoption (SFA) Headwalls

Sewers for Adoption (SFA) Headwalls

Althon SFA Headwalls have been designed to comply with ‘Sewers for Adoption’ guidelines

Rectangular Sewers for Adoption (RSFA) Concrete Headwalls

Rectangular Sewers for Adoption (RSFA) Concrete Headwalls

Althon RSFA Rectangular Concrete Headwalls comply with Sewers for Adoption guidelines

Angled Precast Headwalls

Angled Precast Headwalls

Angled 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

Rectangular Headwalls

Rectangular Headwalls

Rectangular precast headwalls with toe extensions to suit pipework up to 750mm ID

Precast Headwalls for Culverts

Precast Headwalls for Culverts

Althon Culvert Headwalls are sectional in structure with rebated joints. This allows assembly on site around the box culvert

Precast Headwalls with Penstocks

Precast Headwalls with Penstocks

Precast concrete headwalls with factory fitted HDPE/8SS316L penstocks from 100mm - 1500mm as standard

Splayed Wing Wall Headwalls

Splayed Wing Wall Headwalls

Althon SP ‘Splayed Wing Wall Headwalls’ are produced with a higher wing wall at the front of the apron

SFA Headwalls with Precast Steps

SFA Headwalls with Precast Steps

Althon SFA Headwalls with Precast Steps and Handrails comply with the Sewers for Adoption 7th Edition guidelines for precast concrete outfalls

Swale Inlet Headwalls

Swale Inlet Headwalls

  • To suit up to 600mm pipework
  • Option for factory fitted with inline non-return valves
XL Headwall Range

XL Headwall Range

The Althon XLS Headwall Range accommodates pipework up to 2400mm. XLS Headwalls are cast 200mm thick for a 120 year design life