Bregenzerach lower reach - model test is implemented

The renaturalized river at low water with shallow banks.
© Stephan (BAW-IWB)

In the winter of 2021/22, the second and thus final construction phase of those measures was implemented that were tested and further developed in a model trial here in Severingasse.

See more under "Additional Information" (at the bottom).

Both banks of the Bregenzerach between Harder Bridge and Lake Constance are now easily accessible. The flatter banks also mean more stability during floods and more habitat. The greater width gives floods more space and thus improves flood safety. The pictures show the Bregenzerach at low water in July 2022. The discharge is only about 15 cubic meters per second, which is only about one third of the average discharge.

A large gravel bar runs along the right bank, in the background you can see an island and Lake Constance.
© Stephan (BAW-IWB)

Gravel bars are habitat for nature and humans.

You can see tree trunks (dead wood) peeking out of the river bottom, the river, a bridge. In the background, houses and mountains.
© Stephan (BAW-IWB)

The ramp with fish ladder on the right side of the picture and inserted dead wood in the foreground.

On the left of the picture, a gravel bar is to see, slowly moving across the ramp with the current.
© Stephan (BAW-IWB)

A gravel bar moves over the ramp.

You can see shallow banks with stones and gravel, grass in the foreground and forest in the background.
© Stephan (BAW-IWB)

The area downstream of the Harder Bridge.

Additional information