Rhine - Polder Altenheim

General
River Characterisation
River typology
Hydromorphological quality elements
	Quantity and dynamics of water flow; Connection to groundwater bodies; Structure of the floodplain;
Biological quality elements
	Macrophytes and phytobenthos; Benthic invertebrates; Fish;
Ecosystem Services
EU Directives
Pressures
	Hydrological regime modification; Artificial barriers downstream from the site; Artificial barriers upstream from the site; Embankments, levees or dikes; Channelisation / cross section alteration;
Measures
	Improve water retention; Increase flood frequency and duration in riparian zones or floodplains; Link flood reduction with ecological restoration; Construct semi-natural/articificial wetlands or aquatic habitats;
Other

Key features of the case study

General
Country	DE
River Name	Upper Rhine
Site Name	Rhine - Polder Altenheim
River Characterisation

River typology
Location (Lat Lon)	48.4665476791353, 7.77385711669922
Altitude	lowland: < 200 m
Catchment area	very large: > 10000 km2
Geology
National code/ River type name
Hydromorphological quality elements
Quantity and dynamics of water flow Connection to groundwater bodies Structure of the floodplain
Biological quality elements
Macrophytes and phytobenthos Benthic invertebrates Fish
Ecosystem Services

EU Directives

Pressures
Hydrological regime modification Artificial barriers downstream from the site Artificial barriers upstream from the site Embankments, levees or dikes Channelisation / cross section alteration
Measures
Improve water retention Increase flood frequency and duration in riparian zones or floodplains Link flood reduction with ecological restoration Construct semi-natural/articificial wetlands or aquatic habitats
Other
Project size	520 ha
Approximate costs	> 1 000 000 Euros
Synergy	Flood protection, Ecology
Status	Realised
Period of realization	1980 - 1988
Evaluation	Hydromorphological and ecological changes
Implemented by	Wasser- und Schifffahrtsamt Freiburg