My Wrekin

Our products

Highway D400 Gully Grates - 4 flange

Our Highway Group 4 gully grates with four flanges are designed and manufactured to meet the enhanced requirements of Highways England’s Design Manual for Roads and bridges (DMRB) specification CD 534.

The Highway range of access covers and gully grates conform to BS EN 124:2015 and also includes patented safety provisions and design features to ensure safe and robust performance.

Highway D400 4 flange gully grate render


  • Captive hinges reduce theft risk whilst allowing easy lifting.

    Captive hinges
  • Enlarged frame corners help to dissipate, load minimising bearing pressure.

    Enlarged frame corners
  • Mechanical lifting points are provided.

    Mechanical lifting point


Wrekin product code Range Overall frame size (A x B) Clear opening size (C x D) Frame depth (E) Base opening size (F x G) Waterway area My Wrekin
DGHT0D4/4242/KH4F Highway 615 mm x 625 mm 425 mm x 425 mm 100 mm 450 mm x 450 mm 1,250 cm²
DGHT0D4/4242/KH4FP Highway 615 mm x 625 mm 425 mm x 425 mm 100 mm 440 mm x 450 mm 910 cm²
DGHT0D4/4337/KH4F Highway 565 mm x 625 mm 370 mm x 430 mm 100 mm 390 mm x 450 mm 1,000 cm²
DGHT0D4/6060/KH4F Highway 775 mm x 775 mm 580 mm x 580 mm 100 mm 600 mm x 600 mm 2,150 cm²
DGHT0D6/1045/KH4F Highway 625 mm x 1,175 mm 425 mm x 850 mm 150 mm 450 mm x 1,000 mm 2,750 cm²
DGHT0D6/4242/KH4F Highway 615 mm x 625 mm 425 mm x 425 mm 150 mm 440 mm x 450 mm 1,250 cm²
DGHT0D6/4337/KH4F Highway 565 mm x 625 mm 370 mm x 430 mm 150 mm 390 mm x 450 mm 1,000 cm²

Available options and accessories


  • Screw-locking to deter unauthorised access to the gully chamber (will require standard extended-shank socket set tooling to engage/disengage locking screw.
  • Enhanced Anti-slip coating
Related case study

Junction 9 improvements for the M27

Wrekin conducted a successful consultation process to secure the exciting opportunity to supply Unite manhole covers and ironwork installation systems to the county’s most significant infrastructure project in recent history. Hampshire County Council and Highways England have committed to funding a £23m infrastructure project, which will improve the M27 and benefit motorists for years to come.

MJ Church

MJ Church

Read the full Case Study
Related case study

M25 hard shoulder improvements

Mouchel were contacted by the Highways Agency (HA) and tasked with investigating the most cost effective and reliable way to utilise the hard shoulder of the M25 during peak rush hours. This posed several engineering problems, of which one was to consider the service life of the manhole covers that would now be located in the wheel track of one of Europe’s busiest stretches of motorway.



Read the full Case Study