The climate change that is gradually unfolding across the world presents a major challenge for urban designers and architects: how to construct structures that will be protected from floods as sea levels rise, and as the frequency of these natural disasters increases. Most of the conventional architectural practices that entail erecting fixed structures to struggle or try to exclude water are not effective in many parts of the world at present. This has birthed the concept of amphibious architecture; thereby creating structures capable of equal trappings in terms of terrestrial and aquatic fortune. Amphibious architecture refers to a design based on biomimicry in that architecture adapts to the forces of nature and is not a force against nature. 

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Photo of Tamil Nadu floods 2017 _© /www.thequint.com/news/india

 The Idea of Amphibious Construction 

 Amphibious architecture in others is based on the proposition that structures should change with the changes in the environment, especially water levels. Compared to the conventional flood-proof structures where the buildings are constructed to be lifted away from the height of flood level, the amphibious structures can float on water or may be built so that they rise along with the water level. Such dynamic flexibility is especially helpful in flood-prone areas where static approaches yield hardly any effective outcomes. 

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Comparison of a normal house and an amphibious house during dry and flood seasons_© https://www.preventionweb.net/news/float-when-it-floods-amphibious-architecture-alternative-flood-risk-reduction-strategy

 As has been demonstrated, the mobility that is characteristic of amphibious architecture concerns structural aspects of a building and is facilitated by concepts of floating constructions, amphibious supports, and versatile facilities. These strategies help to make buildings capable of use during and after a flood and low enough in the building to minimise the impacts of a flood.

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Amphibious House_© www.shoalcreekconservancy.org

Amphibious structures can be regarded as a classic low-impact flood protection scheme that contributes to the increase of a community’s flood resistance and disaster recovery capabilities. Like a boat during floods, the Water House goes up vertically with the floods to keep above the water level and returns to the normal position once the water has subsided.

Floating Structures 

Technologically, floating structures are part of the base of amphibious architecture. Such structures are constructed with what is known as floating structures or floating foundations whereby the building floats on the water. As can be observed, the structures float and move in tandem with the water level: They are not fixed and thereby very responsive to the existing conditions. These properties make it possible to avoid losses because of floods and to prolong the life cycle of the structures. 

 A very clear example of floating architecture is the Makoko Floating School in Lagos Nigeria. This unique structure was designed for an artist by an architect Kunlé Adeyemi and to support structures it used 12 plastic barrels forming a floating platform. Apart from offering a solution to the lack of educational facilities in a region at high risk of flooding, the school showed that architectural adaptation to floating can help to solve problems created by climate change in communities. 

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Makoko Floating School in Lagos Nigeria_© www.cultureist

 Deepens structures are particularly advantageous especially when sea levels are on the increase as is the case with regions, which are near the coastal part. As such it reduces the challenges of constructing buildings that are static and also provides a viable model for future cities of the world in coastal and delta areas. 

Amphibious Foundations 

 Another one of the main strategies in the context of specimens of amphibious architecture is that of the so-called amphibious foundations. Amphibious structures are different from floaters; the building has to touch the ground in contrast to being floated; the structure then becomes buoyant and floats when flooded. This is done by the use of light and water-resistant materials in the establishment to effectively remain fixed on the site while at the same time allowing for vertical mobility concerning water levels.

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Amphibious house and its main components_© https://www.researchgate.net/figure/Amphibious-house-and-its-Figure-3-Comparison-of-a-normal-house-and-an-main-components_fig2_350776538

Floating foundations are extremely suitable in conditions where water may appear at any time of the year or even months. Proper flood control is especially significant in the Netherlands and some dwelling units have been built as amphibious residences by rivers including the Maas. These homes have concrete First Floor Pods and they have hollow concrete First Floor Pod foundations that afford buoyancy characteristics – the structure floats up with water – and sets down when the water drains away. This approach does not only save individual structures from flooding but also saves the need to undertake huge fixed investments on flood protection structures like levees and dams that could cost a lot and pose serious social costs to the environment. 

Flexible Infrastructure 

 It also affects the concept which embraces the use of mobile resources such as roads, bridges, and utility connections that may be expanded or contracted to suit the fluctuating water level. Adaptive capacity to flooding in the built infrastructure must be designed to be functional during and after floods. This can be done using the flexibility of the materials used and constructing the infrastructure in such a way that it can be realigned or removed and set up in another place if required. 

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Amphibious homes during flood condition_© https://climate-adapt.eea.europa.eu/en/metadata/case-studies/amphibious-housing-in-maasbommel-the-netherlands

 An example of Flexible Infrastructure can be discussed with the help of the Floating Pavilion in Rotterdam which is both designed for people to meet and play and is a prototype of amphibious architecture. It is built over water and can be relocated from one place to another in the city in this way highlighting possibilities of reconfiguration of infrastructures in line with dynamic environmental conditions. This flexibility is especially valuable in large cities where space is often scarce, and the consequences of floods may be devastating.

The concept that has the potential to transform the architectural discourse in this area is the biomimetic one, namely the amphibious architecture that aims at solving such problems as climate change and sea level rise. Due to the design of the buildings and other structures that are in a way such that can also support establishments in the aquatic regions, this is a perfect solution for draining the wetland-affected regions. As people of the world are feeling the effects of climate change, amphibious architecture is an example of how the living environment can be designed in response to the challenges the world is facing. 

Why fight flood water when you can float on it?

Author

An Architect from Hardoi district of Uttar Pradesh with interest in Urban design, Conservation and writing. I graduated from Dayalbagh Educational Institute, Agra with a Bachelor’s degree in Architectural with specialization in Conservation and Interior Design.