Case study:Lactariabeek

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Location: 51° 34' 53.12" N, 5° 54' 33.24" E
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Project overview

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Status Complete
Project web site
Themes Environmental flows and water resources, Habitat and biodiversity, Monitoring
Country Netherlands
Main contact forename Bram
Main contact surname Spierings
Main contact user ID
Contact organisation Waterschap Aa en Maas
Contact organisation web site http://www.aaenmaas.nl
Partner organisations
Parent multi-site project

Building with nature measures in streams

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encompassing the following
projects
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Project summary

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The Lactariabeek is a small stream in a natural stream valley. The surrounding area is composed of woods and agricultural land. It has been straightened in several locations. Six packages of dead wood were introduced in the wooded part of the Lactariabeek stream. The water board performed this experiment to get more experience with dead wood after the successful Snelle Loop experiment.

Monitoring surveys and results

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Macroinvertebrate count and flow velocity were monitored. The results were not as positive as hoped because the stream fell dry.

Lessons learnt

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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: Beek Lage Raam, Beekherstel Lactariabeek, Hooge Raam, Oeffeltse Raam, Tovensche Beek


Site

Name Lactariabeek
WFD water body codes NL38_8V
WFD (national) typology R4
WFD water body name Lactariabeek
Pre-project morphology Straightened
Reference morphology Sinuous
Desired post project morphology Straightened
Heavily modified water body Yes
National/international site designation
Local/regional site designations
Protected species present No
Invasive species present No
Species of interest
Dominant hydrology
Dominant substrate Sand
River corridor land use Broadleaf/mixed woodland (semi natural), Intensive agriculture (arable)
Average bankfull channel width category
Average bankfull channel width (m)
Average bankfull channel depth category
Average bankfull channel depth (m)
Mean discharge category Less than 0.1 m³/s
Mean annual discharge (m3/s)
Average channel gradient category Less than 0.001
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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Cost for project phases

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Investigation and design
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Post-project management and maintenance
Monitoring



Reasons for river restoration

Mitigation of a pressure
Hydromorphology
Biology
Physico-chemical
Other reasons for the project


Measures

Structural measures
Bank/bed modifications
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
Before measures After measures Qualitative Quantitative

Biological quality elements

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Physico-chemical quality elements

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Any other monitoring, e.g. social, economic

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Monitoring documents



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Supplementary Information

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