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CD 534: Chamber Tops and Gully Tops for Road Drainage and Services, now at version 0.2.0. is here Find out more

A solution for every scenario

Highway D400 Surface Boxes

Highway D400 surface box is suitable for use in the carriageway. Featuring standard Highway features such as, indexed covers, enlarged frame corners and is 70+ PSRV tested.

Highway surface box

Features

  • Independently tested by a UKAS-accredited laboratory to achieve a PSRV value of 70+ on the chequer surface.

    PSRV tested
  • Built-in lifting points allow safe mechanical lifting, reducing manual handling and improving on-site safety.

    Mechanical lifting point
  • Enlarged corners spread loads evenly across the foundation, enhancing reliability and lifespan.

    Enlarged frame corners
  • Safety keyways prevent accidental lifting key disengagement during handling for safer operation.

    Safety keyway

Surface boxes

Stock code Range Clear opening
(mm)
Overall frame
(mm)
Frame depth
(mm)
Options My Wrekin Downloads
DBT0D4/4428/KH Highway 445 x 280 680 x 515 100

Related case studies

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M60 - M62 Smart Motorway

The M60 – M62 smart motorway forms an important part of the main east-west transport corridor, linking Merseyside and Greater Manchester with Yorkshire and the Humber. Wrekin Products worked closely with Manchester Smart Motorway JV, offering technical advice and adapting the specification of the product to ensure it would provide the optimum solution. 
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Related case study

Years of exceptional performance

Our Highway D400 covers are still operating at full capacity after three and a half years of being subjected to high levels of HGV traffic. Meaning the organisation can focus solely on new work, rather than being distracted by manhole covers that have failed prematurely and need fixing or, in some cases, reinstalling.

Scottish Water
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