Interdisciplinary Research Program – TUDelft Faculty of Architecture and the Built Environment
RDD Design Study Exhibited at IABR ‘It’s About Time’

Redesigning Deltas Program Partners: TU Delft, Deltares, Convergence Alliance-Resilient Delta, The Delta Commissioner, PBL Netherlands Environmental Assessment Agency, Wageningen University & Research, EUR, IHE Delft

Redesigning Deltas Program Coordination:
TU Delft, Faculty of Architecture and the Built Environment, Delta Urbanism Interdisciplinary Research Group, Chris Zevenbergen, Fransje Hooimeijer, Taneha Kuzniecow Bacchin.
TU Delft, Policy & Strategy Department, Nikki Brand, Geneviève Girard.
Deltares, Ellen Tromp

Redesigning Deltas – Design Study Line Project Leaders:
Fransje Hooimeijer, Taneha Kuzniecow Bacchin

Redesigning Deltas – Design Study Line Advisory Board:
Chris Zevenbergen, Erik Luiten, Like Bijlsma, Hans de Boer, Remon Pot, Ellen Tromp, Nikki Brand

Redesigning Deltas – Design Study Line Design Exhibition Production:
Fransje Hooimeijer, Taneha Kuzniecow Bacchin, Julia Ferreira de Sousa Daher, Francesca Rizzetto, Luca Iuorio

It is about time in Delta Design to create a new Dutch condition. Redesigning Deltas investigates new forms of interdisciplinary design in which urban, landscape and engineering disciplines project a future founded on the natural and spatial qualities of specific ‘moments’ in the Dutch delta system: the port, the sea arms, the polder, the rivers, and the streams. To arrive at a Resilient Delta in 2122 the five teams of the design study delivered a manifest of a new approach how-to live-in harmony with the dynamics of the delta.

The five projects each illustrate this manifesto in the merits of the typical location they worked in. The Limburg team (Defacto, Vista and Arcadis) enforced the landscape as a buffer and quality of life balance in the valley of the Geul. The team of the river corridor, Waal (Fabrications, Bosch Slabbers and Tauw) defines a new border condition of the river area in which there is a new form of living with the natural and dynamic river system. The team that worked on Rotterdam as a port city (Urbanisten, Lola and Royal Haskoning DHV) enlarged and enforced dike ring 14 to create Rotterdam as a lake city and proposed economic protection by raising systematically over time the port. The Rotterdam polder team (Zus, Flux and Sweco) created a clear definition spatially of the relation between city and hinterland by protecting Delftland as a productive landscape. The team that worked in Zeeland (Studio Hartzema, Feddes-Olthof and Witteveen & Bos) did an extensive study by using three parallel futures that present a range between enforcing more land and letting go of land.

‘It’s about time’ marks the urgency of taking responsibility for a sustainable and inclusive world. Redesigning Deltas as a movement is in line with this activist perspective on transformation and focuses on the instrumental side of design. The power of design lies in the ability to see beyond the existing reality, drawing from previous path dependencies and envisioning new relations that are able to trigger fundamental systemic change. It enables change in ways of doing that created the existing reality in the first place. It initiates or disrupts ways of living over time.

It is essential to identify and understand pathways to a sustainable and inclusive delta in which transformations are likely necessary. Collective inter-disciplinary knowledge production is required to develop these (transformation) pathways, and the success of collective knowledge production does require a design-based approach, in which different perspectives are recognized and joint new perspectives are developed.


RDD Booklet IABR-1-Rotterdam Region

RDD Booklet IABR-2-Zeelandia

RDD Booklet IABR-3-Midden Delfland

RDD Booklet IABR-4-Riveren

RDD Booklet IABR-5-Limburg



This manifest is built on the analyses and designs of the five challenges or delta moment, and from these the propositions are projected on the Water State Map 1873. This future- past timelapse is done to acknowledge that before the industrial revolution there was an era where more resilience with the dynamic delta system was tradition. As a collective effort, the five projects formed a ‘new Dutch’ design approach to flood risk management:  #WE ARE HERE TO STAY, AND WE TAKE RESPONSIBILITY, WE CAN CHANGE There is a state of paralysis, doubts on who, what, how and when responsibility and steps towards a safe and secure future should be taken. #WE NEED TO KNOW MORE There is a lot of sectoral knowledge and experience on the delta system, but it lacks integration and evaluation. #WENEEDDARETOMAKEPAINFULDECISIONS To design with uncertainties and without 20 years of research, and without trusting ‘protection’ only. #WE UTILIZE THE DELTA-PARADOX: REGULATION WITHIN THE DYNAMICS We are now regulating the delta system top down and controlling its dynamics. With a set of ‘measures that fits all’- approach whilst there are many morphological, social and economical differences in the Delta. #WE DESIGN THE DELTA BOTTOM UP The design of the Delta is done by the natural system. This is the first boundary condition for an approach wherein the natural – ecological, soil and water – system comes first. Soil and water systems are setting the stage for the occupation. #THE DESIGN OF THE DELTA STARTS WITH THE SECTION There is still a silo approach to the management of the territory. The interdisciplinary design of the delta should be done through scales and disciplines from the section to the international situation.