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Load classifications

E600 solutions

Access covers and gratings capable of withstanding a 60-tonne test load. For use in areas where heavy wheel or high point loads from pneumatic and non-pneumatic-tyred vehicles are imposed, such as loading areas or docks. All units are to be either non-rock or have quietness in use.

Unite E600 product render
Traffic on a busy London road

> 1,500 Annual Average Daily Traffic (AADT)?

With the introduction of CD 534 there were several key changes. This includes the requirement for E600 manhole covers to be installed in place of D400 covers where the Annual Average Daily Traffic (AADT) of light goods vehicles travelled on a road is greater than 1,500 in each direction.

As a "rule of thumb", most A roads will have an annual average daily traffic number over 1,500 light goods vehicles. Full traffic data can be found for many locations around the UK on the Government website.

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Related case studies

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
Scottish Water
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Related case study

Unite(d) at Sunderland City Council

Sunderland City Council is responsible for the maintenance and repair of most roads and bridges in Sunderland. Like so many highway authorities, it had been receiving complaints from residents about noisy manhole covers. They immediately suggested Wrekin Products’ Unite manhole covers, which in addition to eliminating displacement under heavy traffic, as J T Dove explained, offer a range of other benefits.

Sunderland City Council
Sunderland City Council
Read more