Case study:Beek Lage Raam

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Location: 51° 42' 24", 5° 47' 25"
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Project overview

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Status In progress
Project web site
Themes Habitat and biodiversity, Land use management - forestry
Country Netherlands
Main contact forename Waterschap
Main contact surname Aa en Maas
Main contact user ID
Contact organisation Waterschap Aa en Maas
Contact organisation web site http://www.aaenmaas.nl/
Partner organisations STOWA
Parent multi-site project

Building with Nature

This is a parent project
encompassing the following
projects
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Project summary

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In het Raamgebied waren van origine veel kleine heide- en veengebieden aanwezig welke verbonden werden door natuurlijke beekdalen. Met de ontginning van deze gebieden zijn er waterlopen gegraven om voor een voldoende ontwatering te zorgen tijdens het afgraven van veen. Eén van deze waterlopen is de bovenloop van de Lage Raam. Deze ligt in het verlengde van de natuurlijke Lage Raam en is geheel kunstmatig van aard. Dit waterlichaam heeft dan ook de typering (M1a) gebufferde sloot. De gegraven Lage Raam wordt bovenstrooms gevoed door Tovensche beek en Ledeackerse Beek en stroomt uit in de Lage Raam.

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Catchment and subcatchment

Catchment

River basin district Raam
River basin Maas

Subcatchment

River name
Area category 10 - 100 km²
Area (km2) 18.5
18.5 km²
1,850 ha
Maximum altitude category Less than 100 m
Maximum altitude (m) 25
25 m
0.025 km
2,500 cm
Dominant geology Siliceous
Ecoregion
Dominant land cover Intensive agriculture (arable)
Waterbody ID



Other case studies in this subcatchment: Beekherstel Lactariabeek


Site

Name Lage Raam
WFD water body codes NL38_8I/NL38_8G
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 Sand, Veen
River corridor land use Intensive agriculture (arable)
Average bankfull channel width category Less than 2 m
Average bankfull channel width (m) 1.5
1.5 m
0.0015 km
150 cm
Average bankfull channel depth category Less than 0.5 m
Average bankfull channel depth (m) 0.5
0.5 m
5.0e-4 km
50 cm
Mean discharge category 0.1 - 1.0 m³/s
Mean annual discharge (m3/s) 0.245
0.245 m³/s
245 l/s
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m)
Project started 2012
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
Investigation and design
Stakeholder engagement and communication
Works and works supervision
Post-project management and maintenance
Monitoring Waterschap Aa en Maas



Reasons for river restoration

Mitigation of a pressure
Hydromorphology Width & depth variation
Biology
Physico-chemical
Other reasons for the project


Measures

Structural measures
Bank/bed modifications Stroombaanmaaien
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)
Other


Monitoring

Hydromorphological quality elements

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

Biological quality elements

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Physico-chemical quality elements

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Monitoring documents



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Supplementary Information

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