Precast concrete headwalls with toes from Stanton Bonna comply with Sewers for Adoption guidelines for drainage outfall connections into open water areas including collection ponds, swales and rivers.

They provide:

  • Low maintenance
  • Cost effectiveness
  • Quick fit installation
  • Design specific solution
  • Longevity

The strength and durability of precast concrete headwalls preserves the surrounding environment by minimising erosion at the outfall connection.

The quick positioning of precast concrete headwalls is a distinct advantage over ready mixed solutions with no on-site shuttering or formwork required. This proves ideal at difficult to reach areas and where time is limited.

Lifting loops attached to cast in lifting sockets provide a highly economic alternative to other lifting systems and enable easy manoeuvring with standard chains.

The aperture within the headwall will be sized and positioned to meet your requirements, so please contact us with your specific scheme details.

A range of accessories are available including flap valves, penstocks, safety grates (flat, hinged & cranked) and handrails. Ask us about relevant accessories to save time on site.

Precast concrete headwalls can accommodate clay, concrete or plastic pipeline sizes, as follows:

Headwall Sizes
with Back Wall Height (mm)
'A' = Pipe Internal
Diameters (mm)
'B' = Max
Pipe Outer
Diameter (mm)*
Precast ConcretePlastic TwinwallClay
Small
(bw 770)
Up to 300Up to 375Up to 300435
Medium
(bw 1150)
375 to 450450 to 600375 to 525680
Large
(bw 1650)
525 to 900675 to 9006001053
Extra Large
(bw 2365)
1050 to 15001050 to 1600-1820

Hole size supplied in headwall will be wider than pipe Outer Diameter.

See further down this page for Drawings and Installation Guide

Extra large precast concrete headwall with safety rails and flat grate
Small precast concrete headwalls with toes
Example of a headwall drawing with safety rails and toe

Stanton Bonna’s team of experts can assist with challenging and bespoke projects so please contact us to discuss options: call 0115 944 1448, or email info@stantonprecast.co.uk.

Headwall Toe Sizes

Headwall Sizes
with Back Wall Height (mm)
Toe Height and Weights (all 500mm deep)
500mm750mm1000mm
Small
(bw 770)
970kg1450kg1930kg
Medium
(bw 1150)
1200kg1770kg2360kg
Large
(bw 1650)
1400kg2100kg2800kg
Extra Large
(bw 2365)
******

**Details available subject to project needs

Headwall Hole Former Sizes

Hole Former190276299310360429449
Small Headwall
Medium Headwall
Large Headwall
Hole Former460495530595685720790
Medium Headwall
Large Headwall
Hole Former855920960105010801100
Large Headwall
Hole Former595130014501480164018301850
Extra Large Headwall

Contact us to discuss your specific requirements.
Email info@stantonprecast.co.uk or call us on 0115 944 1448