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Highway manhole covers

Our Highway ironwork range is durable, reliable, simple to specify, easy to install and operate. They are available in both D400 and E600 load classifications.

Highway manhole covers are a triumph of engineering, practicality and simplicity. We know from talking to our customers that they value high quality products with straightforward ranges and support on hand to help select the right solution. Highway comes in a wide range of sizes and depths and has been thoughtfully designed and engineered to be the easiest range of manhole covers to specify and install on the market. The range exceeds the most demanding standards and guidelines from national highway authorities.

Highway D400 Manhole cover installed in 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.

Related case study

Aberdeen Western Peripheral Route (AWPR)

The Aberdeen Western Peripheral Route (AWPR) will provide a new strategic road link to improve travel in and around Aberdeen and the north east of Scotland. It will take through traffic out of the “Granite City”. Linking Stonehaven at its southern end with Tipperty at the north, the bypass had been built by the Connect Roads consortium, consisting of Balfour Beatty, Carillion and Galliford Try (Morrison Construction).

Transport Scotland /Aberdeen City and Aberdeenshire Councils
Transport Scotland /Aberdeen City and Aberdeenshire Councils
Read the full Case Study
Related case study

Scotland’s first ever ClickLift installations

Wrekin has successfully completed five ClickLift™ installations as part of trials for two separate housing developments in Scotland, marking the first time the product has been used outside England. ClickLift™ raises Wrekin Highway and TriStar frames to suit the final surface layer without the need for digging out and re-installing.

Campion Homes, Tough Construction, Dawn Homes
Campion Homes, Tough Construction, Dawn Homes
Read the full Case Study