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The originally natural gradient is largely removed by the transverse structures erected as a result of the straightening of the Iller. This created waterways with a low gradient and the pre-alpine watercourse characteristics were lost.  Through the construction of side arms, an attempt is being made to extend the river habitats with natural bed layers and a high habitat function. It enables an approximation to the natural, branched course of the watercourse with its numerous side channels. 

The ground threshold Heimertingen is currently impassable for aquatic organisms, such as fish or micro-organisms moving on the ground. By converting the concrete sleepers into shallow ramps, the passability for aquatic organisms is achieved. A sole ramp provides passability over the entire width of the watercourse. The watercourse section is extended and creates new valuable habitat. The aim is to achieve good ecological status or, in the case of heavily modified water bodies, good ecological potential in accordance with the Water Resources Act (§ 27 WHG).

Washed away soil, chemical spray and nutrients get into water bodies through erosion, what can cause problems for flora and fauna. The project boden:ständig tries to reduce theses risks by informing farmers about different possibilities to prevent erosion and to improve the water quality through the construction of retention structures. The project area is the government district swabia. 

In order to be able to implement the measures for the implementation of the EU Water Framewor Directive and to achieve an ecological improvement along the Günz a water development concept was drawn up. The main objectives are to restore the linear passability of watercourses, to enable self-dynamic development of the river, to improve the structure of the water body and to re-establish the connection of the Günz with the floodplain.The project area is located directly at the confluence of the western and eastern Günz rivers.

The Weir Kirchdorf is currently impassable for aquatic organisms such as fish or microorganisms moving along the river bed. Due to local conditions, the construction of a ramp is not possible. The passage is therefore made by a fish ladder. It runs along the bank next to the weir and connects the upper and lower water. Different variants, such as a near-natural bypass channel or a technical fish ladder are being investigated. Structural, hydraulic, ecological and economic criteria are compared for the different variants. The measure is part of the project Agile Iller.

The two ground threshold in Felheim and the one in Pleß are currently impassable for aquatic organisms, such as fish or micro-organisms moving on the ground. By converting the concrete sleepers into shallow ramps, the passability for aquatic organisms is achieved. A sole ramp provides passability over the entire width of the watercourse.

The originally natural gradient is largely removed by the transverse structures erected as a result of the straightening of the Iller. This created waterways with a low gradient and the pre-alpine watercourse characteristics were lost.  Through the construction of side arms, an attempt is being made to extend the river habitats with natural bed layers and a high habitat function. It enables an approximation to the natural, branched course of the watercourse with its numerous side channels. 

Heavy rain events in the Alps in the years of 1999, 2005 and 2013 led to major floods and substantial financial damage in the South of Germany. Such events are likely to increase with climate change.

The threshold Kellmünz is currently impassable for aquatic organisms, such as fish or micro-organisms moving on the ground. By converting the concrete sleepers into shallow ramps, the passability for aquatic organisms is achieved. A sole ramp provides passability over the entire width of the watercourse. The watercourse section is extended and creates new valuable habitat. The aim of the measure is to achieve good ecological status or, in the case of heavily modified water bodies, good ecological potential in accordance with the Water Resources Act (§ 27 WHG).

The Weißbach was highly regulated. To improve the ecological situation the water authority Kempten created a diversified structured brook bank with slow to fast flowing sections and differend water depths. The restored watercourse section shows different possibilities for structural and ecological upgrading of small watercourses and therefore is particularly qualified for educational use.