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H42C C Headwall

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A one-piece reinforced concrete headwall available in a standard width of 1375mm and a height of 1730mm. Particularly suitable for steep embankments. Due to the relatively narrow footprint of the unit (back to front) it is advisable to fit suitable brackets to attach ground anchors. The unit can accommodate PCC pipes up to 750mm I.D. and plastic pipes up to 750mm I.D. Stainless steel sockets are provided for the attachment of gratings. Lifting points are cast in to each wingwall for safe handling using Althon lifting clutches. Galvanised mild steel angle can be fitted to the side walls in order to fit stoplogs and the back wall can be extended horizontally through the fitting of side wall extensions if required.

We cast the opening in the back wall of our headwalls to suit the pipe diameter and material of the pipe being used. We can cast multiple pipe openings, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls. 

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

H42C C Headwall line drawing
H42C C Headwall
As standard our headwalls have a natural concrete finish.
We can offer coloured headwalls in 4 colours but the final shade is affected by many influences.
Our Headwall Products are available in a range of colours
Natural
Our Headwall Products are available in a range of colours
Cotswold
Our Headwall Products are available in a range of colours
Agate
Our Headwall Products are available in a range of colours
Raven Grey
Our Headwall Products are available in a range of colours
Everglade
Product Name
Max Pipe Opening PCC
Max Pipe Opening Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
H42C C Headwall
750
750
1730
1210

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    H42C C Headwall + 100mm Penstock + Backwall Kee Klamp

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    H42C C Headwall + 150mm Penstock

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    BIM Objects

    If you cannot find what you are looking for, please either email us or use our Headwall Design Service

    You can select multiple files below to be added to a single zip file, your selections will be retained across different Headwalls

    H42C C Headwall - 525mm ID pipe - 100mm Invert Level

    Example Render

    H42C C Headwall - 525mm ID pipe - 100mm Invert Level render

    IFC Object

    Version: 1
    Last Updated: May 17, 2019, 2:35 p.m.

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    ADSK Object

    Version: 1
    Last Updated: May 17, 2019, 2:35 p.m.

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    RFA Object

    Version: 1
    Last Updated: May 17, 2019, 2:35 p.m.

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_H42CC_525mmIDPipe_100mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-17T14:35:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberH42CC
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength915
    NominalWidth1375
    NominalHeight1730
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size915 x 1375 x 1730
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_H42CC_525mmIDPipe_100mmIL
    Version1
    LastUpdated2019-05-17T14:35:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/h42c-c-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/h42c-c-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/h42c-c-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 150mm of semi-dry concrete. Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below - Anchor points & loops C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 750mm ID and Max Pipe Opening Pastic/Clayware = 750mm ID

    Built with: Autodesk Inventor Professional 2018

    H42C C Headwall - 600mm ID pipe - 100mm Invert Level

    Example Render

    H42C C Headwall - 600mm ID pipe - 100mm Invert Level render

    IFC Object

    Version: 1
    Last Updated: May 17, 2019, 2:35 p.m.

    Download IFC Object

    ADSK Object

    Version: 1
    Last Updated: May 17, 2019, 2:35 p.m.

    Download ADSK Object

    RFA Object

    Version: 1
    Last Updated: May 17, 2019, 2:35 p.m.

    Download RFA Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_H42CC_600mmIDPipe_100mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-17T14:35:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberH42CC
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength915
    NominalWidth1375
    NominalHeight1730
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size915 x 1375 x 1730
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_H42CC_600mmIDPipe_100mmIL
    Version1
    LastUpdated2019-05-17T14:35:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/h42c-c-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/h42c-c-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/h42c-c-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 150mm of semi-dry concrete. Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below - Anchor points & loops C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 750mm ID and Max Pipe Opening Pastic/Clayware = 750mm ID

    Built with: Autodesk Inventor Professional 2018

    H42C C Headwall - 750mm ID pipe - 100mm Invert Level

    Example Render

    H42C C Headwall - 750mm ID pipe - 100mm Invert Level render

    IFC Object

    Version: 1
    Last Updated: May 17, 2019, 2:35 p.m.

    Download IFC Object

    ADSK Object

    Version: 1
    Last Updated: May 17, 2019, 2:35 p.m.

    Download ADSK Object

    RFA Object

    Version: 1
    Last Updated: May 17, 2019, 2:35 p.m.

    Download RFA Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_H42CC_750mmIDPipe_100mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-17T14:35:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberH42CC
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength915
    NominalWidth1375
    NominalHeight1730
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size915 x 1375 x 1730
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_H42CC_750mmIDPipe_100mmIL
    Version1
    LastUpdated2019-05-17T14:35:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/h42c-c-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/h42c-c-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/h42c-c-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 150mm of semi-dry concrete. Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below - Anchor points & loops C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 750mm ID and Max Pipe Opening Pastic/Clayware = 750mm ID

    Built with: Autodesk Inventor Professional 2018

    Brochures, Datasheets and Installation Instructions for H42C C Headwall

    H42C Datasheet and Installation Guide

    Download

    Standard Headwall Range

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    As an Autodesk Exchange File (.ADSK)

    As an Industry Foundation Classes (.IFC) file. Inventor provides IFC2x3 output