As the first drainage system in the UK to have been granted HAPAS specification (Highways Authorities Product Approval Scheme) by the BBA, Ridgidrain represents the complete solution for all non-pressurised drainage applications, both above and below ground.

With an excellent strength to weight ratio and an inherent flexibility that allows it to withstand high traffic loads and settlement without cracking or collapsing, it has proved itself in highway, rail and airport projects as a more versatile and reliable alternative to concrete and clay pipes.

It can also be specified with perforations along the length of the pipewall, allowing it to act as a soak-away channel in SUDS systems. With the pipework laid horizontally in verges and fields, or vertically down bore holes, these perforations allow the controlled release of water into subsoil or soft SUDS structures. In some soil conditions, an additional permeable geotextile may be needed to prevent silt migration into the pipe body.