Case study:Isar-Plan

From RESTORE
Jump to: navigation, search
4.00
(2 votes)


To discuss or comment on this case study, please use the discussion page.


Location: 48° 7' 40", 11° 34' 42"
Edit location
Loading map...
Left click to look around in the map, and use the wheel of your mouse to zoom in and out.


Project overview

Edit project overview
Status Complete
Project web site http://www.wwa-m.bayern.de/projekte_und_programme/isarplan/index.htm
Themes Fisheries, Flood risk management, Habitat and biodiversity, Hydropower, Hydromorphology, Land use management - forestry, Monitoring, Social benefits, Spatial planning, Water quality, Urban
Country Germany
Main contact forename Matthias
Main contact surname Junge
Main contact user ID
Contact organisation State Office for Water Management Munich
Contact organisation web site http://www.wwa-m.bayern.de/index.htm
Partner organisations River Restoration Centre
Parent multi-site project
This is a parent project
encompassing the following
projects
No
Straightened Isar (left) and restored diversified channel (Right)

Project summary

Edit project overview to modify the project summary.


The Isar Plan Project is a river restoration project on a stretch of 8Km in the inner city of Munich. The Project was initiated in 2000 and the last site was completed by 2011. The three main goals of the project were: 1) Flood protection 2) Enhancing Species diversity and ecological restoration 3) Improving leisure and recreation

Monitoring surveys and results

Edit project overview to modify the Monitoring survey and results.


The project is being currently monitored.

Lessons learnt

This case study hasn’t got any lessons learnt, you can add some by editing the project overview.


Image gallery


Isar river in Munich 2013
Isar River
Isar River Munich
ShowHideAdditionalImage.png


Catchment and subcatchment

Catchment

River basin district Danube
River basin Isar

Subcatchment

River name Isar
Area category 1000 - 10000 km²
Area (km2) 9000
9,000 km²
900,000 ha
Maximum altitude category 1000 - 2000 m
Maximum altitude (m)
Dominant geology Siliceous
Ecoregion Central Highlands
Dominant land cover Alluvial Forest Vegetation
Waterbody ID



Site

Name Munich
WFD water body codes DE16_147237_173317
WFD (national) typology Type 4 "gravel and stone embossed flow of the Alpine foothills"
WFD water body name
Pre-project morphology Straight, Revetments, Embanked, Impounded
Reference morphology Braided, High width:depth
Desired post project morphology
Heavily modified water body No
National/international site designation Germany - Landschaftschutzgebiet
Local/regional site designations Landschaftsschutzgebiet/ Naturschutzgebiet
Protected species present Yes
Invasive species present Yes
Species of interest European green toad (Bufo viridis), little ringed plover (Charadrius dubius), Fish: huchen (Hucho hucho), nase (Chondrostoma nasus), grayling (Thymallus thymallus), burbot (Lota lota), brown trout (Salmo trutta), barbel (Barbus barbus) and chub (Leuciscus cephalus). Flora.rock roses (Helianthemum spp.), broomrapes (Orobanche spp.), meadow clary (Salvia pratensis), quaking grass (Briza media) and the Carthusian pink crocus (Dianthus carthusianorum) Butterflies:Idas blue (Plebejus idas) and common blue (Polyommatus icarus)
Dominant hydrology Quick and varying run-off
Dominant substrate Gravel- largely limestone
River corridor land use Urban, Forest, Flood plains
Average bankfull channel width category more than 50 m
Average bankfull channel width (m)
Average bankfull channel depth category 0.5 - 2 m
Average bankfull channel depth (m)
Mean discharge category 10 - 100 m³/s
Mean annual discharge (m3/s) 63.7
63.7 m³/s
63,700 l/s
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m) 8000 m
8 km
800,000 cm
Project started 1998/01/01
Works started
Works completed 2011/08/31
Project completed
Total cost category more than 10000 k€
Total cost (k€) 35000€
35 k€
Benefit to cost ratio
Funding sources City of Munich, Free state of Bavaria

Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design more than 10000 k€ State Office for Water Management Munich Matthias Junge
Stakeholder engagement and communication more than 10000 k€ City of Munich Peter Schaller
Works and works supervision more than 10000 k€ State Office for Water Management Munich Stefan Kirner
Post-project management and maintenance more than 10000 k€ State Office for Water Management & City of Munich
Monitoring more than 10000 k€ State Office for Water Management



Reasons for river restoration

Mitigation of a pressure Riparian development
Hydromorphology Structure & condition of riparian zones, Continuity of sediment transport, Quantity & dynamics of flow
Biology Fish: Abundance, Habitats, Invertebrates: Disturbance-sensitive species
Physico-chemical Bathing water quality
Other reasons for the project Improvement of Flood Protection, Landscape enhancement, Recreation


Measures

Structural measures
Bank/bed modifications Deepening of river floor, Removal of bank reinforcements, Creation of gravel banks, Bank reprofiling
Floodplain / River corridor Large scale planting of native species, Creation of a flood expansion area
Planform / Channel pattern Channel widening, Creation of willow island, Creation of braided channel, Channel naturalisation
Other embedding of rootballs and tree trunks, Creation of new bicycle path, natural seating stones places on banks
Non-structural measures
Management interventions Waste management, provision of temporary toilet facilities
Social measures (incl. engagement) Information for the public
Other


Monitoring

Hydromorphological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative
Structure & condition of riparian zones Yes Yes Improvement
Continuity of sediment transport Yes Yes Improvement

Biological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Physico-chemical quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Any other monitoring, e.g. social, economic

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative
Public use Yes Yes Yes Improvement


Monitoring documents



Additional documents and videos


Additional links and references

Link Description
http://www.restorerivers.eu/Portals/27/NiveditaMahida session05 ECRR2013 Isar-Plan.pdf presentation by N. Mahida
http://www.youtube.com/watch?v=JV4Yt9j-h Y&feature=youtu.be N. Mahida talking on you Tube about the Isar

Supplementary Information

Edit Supplementary Information