Rainwater Infiltration in Rodgau

Installation and maintenance of infiltration trenches

Abfluss-AS is your expert for Rainwater Infiltration Services in and around Rodgau. The impact of surface sealing is increasingly evident across Germany, reflected in the rising costs of drinking water and wastewater, along with escalating flood damage. The issue of rainwater infiltration is particularly relevant for new constructions, modifications, and refurbishments.

Current technological advancements facilitate an approach to rainwater management that mimics the natural process of slowly releasing water into the underground. Consequently, local authorities are gradually advocating for onsite decentralized infiltration methods (for instance, using infiltration basins) to manage rainwater effectively.

What is decentralised rainwater infiltration?

When rainwater that has not been polluted with harmful substances infiltrates directly onto the property, this is referred to as “decentralised rainwater infiltration”. The technical issues in this context are regulated by the DWA-A 138 worksheet.

Rainwater Infiltration

What is a storm drain?

An infiltration trench is an underground trench in which rainwater can infiltrate. Infiltration trenches are mainly planned because of limited space and the relatively simple realisation.

Infiltration trenches can be installed under paved paths and areas accessible by lorries. They can be combined with other techniques, e.g. above-ground depressions (swales).

Rigole Graf

Amendment of the Water Resources Act

According to the amended German Water Resources Act (WHG), more rainwater is to be infiltrated instead of being drained into the sewage system as was previously the case. According to § 55 para. 2 WHG, the mixing of rainwater and wastewater is to be avoided. In fact, this regulation means the end of the principle of mixed sewerage.

Furthermore, rainwater infiltration systems are increasingly prescribed in development plans. Modern infiltration trenches offer various advantages over classic rainwater infiltration (troughs, gravel):

  • High storage and infiltration capacity (only 30% of the gravel volume is required for the same capacity).
  • Less land required (less excavation)
  • Hardly any restriction on surface usability (in contrast to swale infiltration)

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