Excavators and trucks are busy in the "Mitte-West" construction section. On a specially paved construction road, separated from the Danube cycle path, they will bring gravel, humus and sediments from the floodplain or distribute them in the floodplain. Everything is being done according to a detailed plan, the aim of which is to create the basis for a new Traisen river. This section of the river will then be left to its own devices over the coming years from 2019. Floods will create new pools, meanders, landings and washouts. "An Amazon in miniature", as project manager Helmut Wimmer describes the project.
The gravel dredged for the new river course will be transported a short distance to the Danube and taken away from there by ship. Some of the gravel will be used to build new spawning grounds for Danube fish, while some will be returned to the Danube downstream of Vienna. There, the river is deepening from year to year and the gravel from the Traisen is urgently needed here.