Construction
The brushwood part had a total area of 2440 m 2 and a weight of 80.000 kilo. Part 1 and 2 were constructed of 100% Salix alba, part 3 was constructed of 25% Salix alba and 75% Salix viminalis due to a shortage of Salix alba. All the wood was harvested at least 3 years prior to construction. The floating marsh was completed on the 26th of June 2009.