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Building with Nature Guideline > Building Solutions > Green-grey solutions > Creating hanging and floating structures 

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Creating hanging and floating structures

Hanging and floating structures are small-scale structures that provide habitat for organisms, can make a landscape more attractive and can be used to dampen wave energy which can contribute to lower maintenance costs of quay walls. There are different types of hanging and floating structures (see image below). Examples are floating marshes (type 1), pontoon hulas (type 2) en pile hulas (type 3/4). The structures are relatively easy to apply and offer opportunities for added services even when physical conditions or design constraints require hard solutions and/or provide little space for Building with Nature.



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How to use

A guideline for determining the feasibility and implementation of hanging and floating structures is presented below. In the pre-feasibility phase it is important to get insight in the physical boundary conditions and social-economic interests to determine the possibilities. In the feasibility phase the design is created in close collaboration between technicians and ecological experts.  Field trials can be used to improve the design for area specific conditions. After this, the design can be constructed and monitored. Costs depend on the design, construction implications, maintenance and operational cost and benefits.

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Practical applications

A short description of three projects where hanging/floating structures were applied is given below. In these projects, different types of structures were applied.

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