Case study:Beek Lage Raam

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Location: 51° 42' 23.62" N, 5° 47' 25.08" E
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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
No
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Project summary

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The Raam region originally featured many small moors and bogs, connected by natural stream valleys. When the area was exploited for its peat, several waterways were dug to ensure sufficient drainage for peat extraction. The upper stretch of the Lage Raam is one of these waterways. This artificial channel was connected to the natural lower stretch of the Lage Raam. This water body is classified as a freshwater buffered ditch (M1a). The dug-out Lage Raam receives water from the Tovensche Beek and Ledeackerse Beek and discharges into the (natural) Lage Raam.

Monitoring surveys and results

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Catchment and subcatchment

Catchment

River basin district Meuse
River basin Maas

Subcatchment

River name Oeffeltsche Raam
Area category 100 - 1000 km²
Area (km2)
Maximum altitude category Less than 100 m
Maximum altitude (m)
Dominant geology Siliceous
Ecoregion Western Plains
Dominant land cover Intensive agriculture (arable), Grassland, Broadleaf/mixed woodland (semi natural)
Waterbody ID NL38_8P, NL38_8I



Other case studies in this subcatchment: Beekherstel Lactariabeek, Hooge Raam, Lactariabeek, Oeffeltse Raam, Tovensche Beek


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) 1.51.5 m <br />0.0015 km <br />150 cm <br />
Average bankfull channel depth category Less than 0.5 m
Average bankfull channel depth (m) 0.50.5 m <br />5.0e-4 km <br />50 cm <br />
Mean discharge category 0.1 - 1.0 m³/s
Mean annual discharge (m3/s) 0.2450.245 m³/s <br />245 l/s <br />
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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Investigation and design
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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)
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Monitoring

Hydromorphological quality elements

Element When monitored Type of monitoring Control site used Result
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Monitoring documents



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Supplementary Information

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