Floating Wetlands

Underneath the water surface, ropes tied to the net create a man-made jungle gym for small fish to play.  

Floating Wetlands

Developing the design of the wetlands was a project I worked on during the summer of 2015. These are structures for carrying plants on the water for the purpose of improving water quality by improving the conditions for fish and other wildlife.

My focus was to make a strong structure that could carry itself on water, with a medium current, using as little plastic materials as possible. In the event that the structure breaks, it should not suddenly become toxic to its environment. I created a design that could be easy to replicate using only hand tools. It should be easy to replicate by anyone excited to strive for the improvement of local water ecologies. Floating material was built-in inside the corners and a net arranged for planting in the middle. Underneath the water surface, ropes tied to the net create a man-made jungle gym for small fish to play. This type of habitat is more scarce in the city today because of that the current is often too strong along our constructed waterways. This type of installation can help improve water quality.

Sponsor: Färgfabriken. During the work transporting materials and assembling the design, I had a lot of help from Jens Evaldsson who is the artist behind the Maretopia project and Sergio Montero Bravo, architect, and teacher at Konstfack.


Pictures from my work on developing and building a new floating wetland design.

At Gröndal's boat club I got help from Jens Evaldsson, Sergio Montero Bravo and my mother to assemble the two floating wetlands.

Read more about Maretopia here!!


Floating Wetlands grew from ideas developed during the course and group project Maretopia, held at Konstfack during the spring of 2015. The theme of the course considered sustainable design, different lifestyles and it raised our awareness of local ecologies. As a class, we planned and built floating structures that were displayed at Färgfabriken as a part of the project Experiment Stockholm 23/9-29/11 that same year. Location: Konstfack, or University College of Arts, Crafts and Design / Färgfabriken, Gröndal. Teacher: Sergio Montero Bravo. Guests: Jens Evaldsson Artist and Ulrika Hamrén Ecologist and co-owner of Ekologigruppen.

“Maretopia - en vision om ett framtida flytande ekologiskt kulturhus på Stockholms vatten”  

/ Jens Evaldsson

Me and my classmates trying out our floating designs for the first time. Photo by Jens Evaldsson.

Design process, group

© 2018 Cecilia Margareta Tjärnberg