Stormwater Management
A HEART FOR THE SPONGE CITY – RAINWATER MANAGEMENT & REDUCING HYDRAULIC STRESS ON SEWERS
With the increasingly drastic effects of climate change, a paradigm shift has taken place: away from the rapid drainage of rainwater in settlements – towards adaptation to the natural water cycle. Internationally, there is talk of sponge city concepts or sustainable urban drainage systems (SUDS). In combination with green infrastructure or nature-based solutions (NBS), rainwater management is intended to provide additional ecosystem services and multifunctional benefits.
We support you in managing rainwater on site. This includes the treatment, temporary storage, use, infiltration, and evaporation of runoff water. In doing so, we seek to strike a balance between flood protection, ecological goals, economic interests, and land use requirements.
In numerous construction projects, we use innovative methods and technologies to implement concepts adapted to local conditions. In addition to “classic” green roofs, troughs, and infiltration ditches, these include combined systems such as green retention roofs and trough-infiltration ditch elements, wetlands, smart cisterns, tree infiltration ditches, green facades, and roadside retention filter strips.
Our rainwater concepts and property planning cover everything from individual plots of land to extensive development plans.
Services
- Flood prevention (consulting),
- Flood certification,
- Application for water rights permits,
- Expert reports (Berlin, certification for discharge into sewers, etc.),
- Feasibility studies and economic viability assessments,
- Property planning (property-specific or neighborhood-wide),
- Local construction supervision
Property planning
- Multifunctional roofs (solar, green, and retention functions),
- Natural rainwater treatment (retention soil filters, wetlands),
- Technical and natural retention systems (ponds, swales, reservoirs),
- Intelligent rainwater cisterns with rainwater harvesting in buildings,
- Technical systems for decentralized rainwater treatment,
- Evaporation beds (urban wetlands),
- Infiltration systems
Infiltration & Retention with Dense Subsoil
The existing insurance systems on a school site reach their limits during heavy rainfall and regularly cause flooding damage. New functional infiltration systems must ensure the future drainage of precipitation despite the difficult terrain on almost impermeable boulder clay.
The technical challenges without the possibility of connection to the sewage system can be solved by discharging the rainwater into the water-conducting layers under the boulder clay, which is permitted by the water authorities. With this combination of soakaway and swale, supplementary terrain modeling and gutters ensure that the surface water is directed into the areas capable of seepage. more >
