Rainwater harvesting in the Caleido Park water sheet
NbS Projects
The European Union has made a strong commitment to make its community a market leader in Nature Based Solutions. As a result of this drive and the individual commitment of several precursors, there are numerous projects within Spain carried out from this approach, developed from the public and private innovation sector and in mutual collaboration. Here we present one example:
Coordinators: Madrid City Council
Funding programme / client: Climate-KIC
Scale: Neighbourhood
Autonomous community: Madrid
Challenges: Water management / Management of green spaces
The design of the park is conditioned by the steep slope between the open spaces planned on the plot, the square of the four towers and the natural spaces to the west of the park on Avenida Monforte de Lemos, exceeding 10 m in some cases.
Because of the slope and the low permeability of the soil, SUDS are designed to laminate the runoff water.
- Delimitation of the park into two basins, the first with 26 sub-basins and the second with 16.
- The runoff water from basin 1, with a total surface area of 12,493 m2, is collected through the Drainage Ditches and Permeable Pavements and transported by gravity to the main collection chamber.
- In the central part of the park, in the vicinity of the building, an elongated sheet of water is planned, occupying a surface area of about 450 m2 and 135 m3. A biofilter is integrated into the sheet, which purifies the stored water through a new compact, high-performance filtration system consisting of a special filter substrate and vegetation.
- Installation of Bluebloqs technology for rainwater harvesting and circular water management: as much runoff water as possible collected through the drainage ditch system (SUDS) is recovered, treated by a biofilter and used to supply the water sheet.
- Reduction of the required drainage flow in the park compared to a design without SUDS and permeable paving.
- Circular management of runoff water.
- Incorporation of native vegetation.
- Monitoring of the quantity and quality of water managed through the incorporation of innovative technology.
Entities: Espacio Caleido, Fenwick Iribaren Architects, GIS, Grupo Tudic construcciones, TU Delf, UPM, Field Factor