Water management design for bus depot

An essential part of the design of the most sustainable and environmentally friendly bus depot in the Netherlands is the way rainwater is managed.

Water management for the most sustainable and environmentally friendly bus depot in the Netherlands

Commissioned by the Province of North Brabant, the Van der Ven – KWS consortium is constructing the new bus depot in Breda. The site accommodates parking and charging facilities for 180 electric buses. In addition, there are facilities for a wash bay, maintenance, offices, and a canteen for the bus drivers. The new depot is located along the dedicated rapid bus lane to the station, reducing disruption caused by buses for other road users.

SUSTAINABILITY GOAL

The circularity of all materials used is carefully tracked, which is essential for a sustainable construction process and material reuse. All products supplied by Joosten are recycled and/or recyclable, ensuring compliance with the client’s sustainability objectives.

COMBINATION OF TWO SYSTEMS

A key part of the design of the most sustainable and environmentally friendly bus depot in the Netherlands is how rainwater is managed. Joosten Groep was asked to review the water management design, structural design, and material selection. Two different systems are applied on the site: a water-retaining road foundation with semi-paving and an infiltration system.

WATER-RETENTIVE ROAD FOUNDATION

For the car parking area, a granular foundation stabilized with Mirafi HMi geotextile from Solmax was chosen. To ensure that the void space of the open granular foundation retains its water-retentive function in the long term, it is covered with a filtering non-woven fabric from Solmax. The parking area is seeded with a grass mixture. To prevent damage to the grass and avoid rutting, JSTN GS PRO semi-paving is applied.

WATER RETENTION WITH INFILTRATION CRATES

Beneath the bus parking spaces lies a layer of JSTN JobiCell infiltration crates, completely wrapped in a permeable geotextile. To withstand the pressure from traffic movements and parked buses, the Heavy-duty version was selected. The JSTN JobiCell is a strong, highly permeable box with a large buffering capacity, temporarily storing rainwater before it infiltrates into the soil.