Case study:Kleine Aa, traject Smalwater Noord: Difference between revisions
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Revision as of 15:32, 11 April 2013
This case study is pending approval by a RiverWiki administrator.
Project overview
Status | Complete |
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Project web site | http://http://www.esschestroom.nl/index.php?pid=7&info=7 |
Themes | Habitat and biodiversity, Spatial planning |
Country | Netherlands |
Main contact forename | Rogier |
Main contact surname | Vogelij |
Main contact user ID | |
Contact organisation | Dienst Landelijk Gebied |
Contact organisation web site | http://www.dienstlandelijkgebied.nl/en |
Partner organisations | |
Parent multi-site project | |
This is a parent project encompassing the following projects |
No |
Project summary
Waterboard De Dommel in cooperation with Foundation Brabants Landschap (Brabant Landscape) have restored the watercourse Kleine Aa (Small Aa) to improve landscape and ecological values.
The southern portion of this stream was restored some years ago, and in September 2011 the northern part, the area between the railway Boxtel - Tilburg and the outlet in the Essche Stream, was restored. At the moment the project Kleine Aa in the final stages of completion as the second fish passage is contstructed downstream. The work will probably be completed by summer 2013.
Between Kapelweg and Helweg in Boxtel, the stream is restored over a length of 1.5 km. The result is a natural, narrow, brook that winds its way through the landscape. Two fish passage allow fish like the Bitter Roach, Chub and Ide, to swim again between the Essche stroom and the Beerze, at the spot where dams previously prevented this.
The use of rubble in this fishways improves the habitat of protected bullhead. Also amphibians will be more at home in the area thanks to the pools on the banks of the stream. The scenery along the water is varied, with flowery meadows, willows and elms.
A hiking trail now also allows hikers to explore the area, crossing the stream at a location where a crossing was historically.
Monitoring surveys and results
Lessons learnt
Catchment and subcatchment
Site
Name | |
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WFD water body codes | |
WFD (national) typology | R5 |
WFD water body name | |
Pre-project morphology | |
Reference morphology | |
Desired post project morphology | |
Heavily modified water body | No |
National/international site designation | |
Local/regional site designations | |
Protected species present | No |
Invasive species present | No |
Species of interest | |
Dominant hydrology | |
Dominant substrate | |
River corridor land use | |
Average bankfull channel width category | |
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Mean discharge category | |
Mean annual discharge (m3/s) | |
Average channel gradient category | |
Average channel gradient | |
Average unit stream power (W/m2) |
Project background
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Project started | |
Works started | |
Works completed | |
Project completed | |
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Total cost (k€) | |
Benefit to cost ratio | |
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Cost for project phases
Phase | cost category | cost exact (k€) | Lead organisation | Contact forename | Contact surname |
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Investigation and design | |||||
Stakeholder engagement and communication | |||||
Works and works supervision | |||||
Post-project management and maintenance | |||||
Monitoring |
Reasons for river restoration
Mitigation of a pressure | |
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Hydromorphology | |
Biology | |
Physico-chemical | |
Other reasons for the project |
Measures
Structural measures
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Bank/bed modifications | |
Floodplain / River corridor | |
Planform / Channel pattern | |
Other | |
Non-structural measures
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Management interventions | |
Social measures (incl. engagement) | |
Other |
Monitoring
Hydromorphological quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Biological quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Physico-chemical quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Any other monitoring, e.g. social, economic
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Monitoring documents
Image gallery
Additional documents and videos
Additional links and references
Link | Description |
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Supplementary Information
Edit Supplementary Information