Vén Duna - side arm reopening

General
River Characterisation
River typology
Hydromorphological quality elements
	Quantity and dynamics of water flow; River depth and width variation; Structure of the riparian zone; Structure of the floodplain;
Biological quality elements
	Phytoplankton; Benthic invertebrates; Fish;
Ecosystem Services
EU Directives
Pressures
	Channelisation / cross section alteration; Alteration of instream habitat; Embankments, levees or dikes; Sedimentation and sediment input;
Measures
	Remove or modify in-channel hydraulic structures; Reconnect backwaters and wetlands; Improve backwaters;
Other

Key features of the case study

General
Country	HU
River Name	Danube
Site Name	Vén Duna - side arm reopening
River Characterisation

River typology
Location (Lat Lon)	46.2124769066052, 18.9001750946045
Altitude	lowland: < 200 m
Catchment area	very large: > 10000 km2
Geology	Calcareous
National code/ River type name
Hydromorphological quality elements
Quantity and dynamics of water flow River depth and width variation Structure of the riparian zone Structure of the floodplain
Biological quality elements
Phytoplankton Benthic invertebrates Fish
Ecosystem Services

EU Directives

Pressures
Channelisation / cross section alteration Alteration of instream habitat Embankments, levees or dikes Sedimentation and sediment input
Measures
Remove or modify in-channel hydraulic structures Reconnect backwaters and wetlands Improve backwaters
Other
Project size	3 km2
Approximate costs	100 000 - 1 000 000 Euros
Synergy	none
Status	Realised
Period of realization	1998
Evaluation	Hydromorphological and ecological changes