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    Revitalisierungsmaßnahme an der Enns bei Mandling

    New River Enns near Mandling

    Restoration of two former river loops

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    After an 8-month construction period, work on the Enns near Mandling was mostly completed in early summer 2023. Here, two former river loops of the Enns were restored.

    The result? A natural and lively river that can once again flow more freely and constantly changes. Natural processes are creating new gravel and sand banks in the renaturalized sections and deep pools alternate with shallow, flooded areas. As a result of these measures, the river is once again better connected with the surrounding area. In the event of a flood, water can be buffered in such areas and flooding in the settlement area is reduced.

    The positive effects are already clearly visible. The ecological condition of the River Enns has improved noticeably and the river and the adjacent banks are an important habitat for many native animals and plants.

    Enns Mandling Fact Sheet

    Total costs:

    0
    Mil €

    Including land acquisition, detailed planning for the pilot measure and river basin planning for the Enns in Salzburg

    Construction costs:

    0
    €

    630000 €: EU and federal government in a 60:40 ratio

    Further financial support from the federal state of Salzburg and the municipality of Radstadt

    Construction period:

    Oct 2022

    May 2023

    Two landowners made the pilot project possible in the first place by selling or exchanging land

    Fascinating river landscape

    Experience the 'new' Enns up close! The revitalization of the Enns near Mandling is not only impressive from an ecological point of view, but is also a real scenic highlight. Right next to the Mandling moor and along the Enns Cycle Path, the Enns with its clear, turquoise-blue water and the majestic Dachstein massif in the background is an ideal destination - a must for locals and visitors alike.

    Timeline & Milestones

    The timeline for measures on Enns near Mandling.

    Measures Site Plan

    Flusskarte.
    Download the plan

    Before

    After

    Why was the Enns near Mandling revitalized?

    The main aim of the LIFE IP IRIS project is to combine flood protection with ecological objectives. To achieve this, IRIS relies on nature-based solutions. River revitalization brings rivers back closer to their natural form and gives them back some of the space they lost as a result of river regulation in the 19th and 20th centuries.

    Moderate to poor ecological quality

    Historically, the Enns was straightened and intensively regulated. While these measures led to an increase in agricultural productivity, they left behind a river with little structural diversity and moderate to poor ecological quality. As a result, there were hardly any fish or other aquatic life left.

    More space for the Enns

    In order to improve the ecological status of the Enns, two former river loops were restored. The restored meanders follow the former course of the Enns, as can be seen on historical maps. Now the Enns can flow more freely again.

    Ecological goals and flood protection

    Although the focus on the Enns Salzburg was primarily on ecological objectives, the revitalization also has a positive effect on flood protection. Revitalization measures, such as those carried out on the Enns, ensure that the river is well connected to the surrounding landscape. On the one hand, interconnected river areas and floodplains have a high level of biological diversity. On the other hand, they keep the water in the landscape for longer during flood events and thus ensure that flood waves are attenuated. This significantly reduces the damage potential of flood events in settlement areas in a cost-effective way.

    Impressions of the Enns

    Photocredits: Photos by Land Salzburg – Abteiling Wasser, Bernhard Schubert and AIR-Media.

    Measures in other IRIS pilot areas

    More fish for the Lafnitz

    Revitalisation measures create new habitats for fish and other organisms.

    Read More
    Bauarbeiten zur Verlängerung des Donau Nebenarms in der Marktau.

    More river, more life: Danube Marktau

    In the Marktau area near Ottensheim and Wilhering, an existing side arm of the Danube is being extended by about 400 meters. The measures will…

    Read More

    Return to Natural Origins

    Between Obergrafendorf and Weinburg, the Pielach River will soon be able to flow more freely again. New broadening of the river, raised riverbeds, and more…

    Read More

    More structure for the river: Lafnitz Neudau

    New habitats and improved flood protection on the Lafnitz River near Neudau.

    Read More
    Revitalisierungsmaßnahme an der Enns bei Mandling

    New River Enns near Mandling

    After an 8-month construction period, the work on the Enns near Mandling was largely completed in early summer 2023.

    Read More

    Turning old into new: Leitha Gatten­dorf

    In the period from October 2022 to March 2023, a section of the Leitha near Gattendorf was revitalized by reconnecting an old river branch.

    Read More

    Untere (lower) Traun

    Coming soon...

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    More Room for the Enns

    Near Stainach, the Enns is being widened in the area of the Leistenbach confluence to give it more space for natural development.

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    Unterwasseransicht eines Fischschwarms in der Leitha.

    Living Leitha

    Along the Leitha, structurally rich and lively river sections are being created

    Read More
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      LIFE IP IRIS
      Federal Ministry
      Republic of Austria
      Agriculture, Forestry, Regions and Water Management
      Stubenring 1, 1010 Vienna, Austria
      Tel.: (+43 1) 711 00 0
      Fax: (+43 1) 71100- 606503
      info@life-iris.at

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