Enns - Aich

General
River Characterisation
River typology
Hydromorphological quality elements
	River depth and width variation; Structure and substrate of the river bed; Structure of the riparian zone; Structure of the floodplain;
Biological quality elements
	Benthic invertebrates; Fish;
Ecosystem Services
EU Directives
Pressures
	Hydrological regime modification; Artificial barriers downstream from the site; Artificial barriers upstream from the site; Alteration of instream habitat; Sand and gravel extraction; Embankments, levees or dikes; Alteration of riparian vegetation; Channelisation / cross section alteration;
Measures
	Improve water retention; Increase flood frequency and duration in riparian zones or floodplains; Link flood reduction with ecological restoration; Remove barrier; Widen water courses; Initiate natural channel dynamics to promote natural regeneration; Introduce large wood; Remove bank fixation; Recreate gravel bar and riffles; Adjust land use to develop riparian vegetation; Revegetate riparian zones; Remove bank fixation; Lower river banks or floodplains to enlarge inundation and flooding; Reconnect backwaters and wetlands;
Other

Key features of the case study

Site description

Measures selection

Success criteria

Ecological response

Hydromorphological response

Monitoring before and after implementation of the project

Socio-economic aspects

Contact person within the organization

Extra background information

References

Related Measures

Related Pressures

General
Country	AT
River Name	Enns
Site Name	Enns - Aich
River Characterisation

River typology
Location (Lat Lon)	47.42112, 13.816094
Altitude	mid-altitude: 200 - 800 m
Catchment area	large: > 1000 - 10000 km2
Geology	Siliceous
National code/ River type name
Hydromorphological quality elements
River depth and width variation Structure and substrate of the river bed Structure of the riparian zone Structure of the floodplain
Biological quality elements
Benthic invertebrates Fish
Ecosystem Services

EU Directives

Pressures
Hydrological regime modification Artificial barriers downstream from the site Artificial barriers upstream from the site Alteration of instream habitat Sand and gravel extraction Embankments, levees or dikes Alteration of riparian vegetation Channelisation / cross section alteration
Measures
Improve water retention Increase flood frequency and duration in riparian zones or floodplains Link flood reduction with ecological restoration Remove barrier Widen water courses Initiate natural channel dynamics to promote natural regeneration Introduce large wood Remove bank fixation Recreate gravel bar and riffles Adjust land use to develop riparian vegetation Revegetate riparian zones Remove bank fixation Lower river banks or floodplains to enlarge inundation and flooding Reconnect backwaters and wetlands
Other
Project size	0.6 km
Approximate costs	100 000 - 1 000 000 Euros
Synergy	Flood protection, ecology, recreation
Status	Realised
Period of realization	2003 - 2004
Evaluation	Hydromorphological and ecological changes
Implemented by	municipality Aich

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Enns - Aich

Enns - Aich

Key features of the case study

Site description

Measures selection

Success criteria

Ecological response

Hydromorphological response

Monitoring before and after implementation of the project

Socio-economic aspects

Contact person within the organization

Extra background information

References

Related Measures

Related Pressures