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Drainage Channel for Car Parks

Traffic volumes in car parks

Drainage channels in busy car parks are often driven over or subjected to loads whilst vehicles are manoeuvring. They must be able to withstand these stresses in order to fulfil their function properly and over the long term. According to DIN EN 1433, load classes from B 125 (12.5 t test load) are therefore recommended for car parking spaces and from C 250 (25 t test load) for heavier vehicles such as lorries. You can find suitable drainage channels for heavy goods vehicles here

Another consideration is securing the covers resting on the channel body so that they do not pop up noisily when vehicles drive over them. In such cases, our drainage channels are either locked in place or bolted down, or used as monolithic elements. As car parks at supermarkets or shopping centres generally remain accessible on days when the premises are closed, these mechanisms offer greater protection against theft and vandalism.

Example: Locking bars for the MAXI drainage channel, providing additional protection in traffic areas

Example: The slope of the car park directs the water into a drainage channel. This is connected to a filtration system, which purifies the water before it enters a box drain for infiltration.

Rainwater infiltration

Some local authorities or towns already require that rainwater is no longer discharged directly into the sewerage system. This is not only to relieve the burden on the sewerage system, but also to use techniques to allow rainwater to infiltrate – for example, via basins or infiltration trenches – and be returned to the water table. Pre-treatment of the water may also be required, depending on statutory regulations and local authority guidelines, as the water becomes heavily contaminated – particularly in larger car parks – by tyre abrasion and oil and fuel spills. For this reason, filter systems, for example, are used prior to infiltration to reduce environmental impact. To cope with this level of contamination, our drainage channels are designed to be resistant to both mineral oils and road salt.