Case study:2e Lower Woodsford River and Floodplain Enhancement

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Location: 50° 43' 12", -2° 18' 51"
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Project overview

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Status Complete
Project web site
Themes Fisheries, Flood risk management, Habitat and biodiversity, Hydromorphology, Land use management - agriculture, Land use management - forestry, Monitoring
Country England
Main contact forename Aly
Main contact surname Maxwell
Main contact user ID User:Alymaxwell
Contact organisation Environment Agency
Contact organisation web site
Partner organisations Forestry Commission, Woodland Trust, Dorset Wildlife Trust
Parent multi-site project

Case_study:River Frome Rehabilitation Plan

This is a parent project
encompassing the following
projects
No

File:2e Lower Woodsford Project Record.pdf

Project summary

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This is a river and floodplain project including 15ha of floodplain and 2kms of main river. Reaches of the River Frome have been improved through removing raised embankments and hard stone bank protection. This allows for natural river processes to occur and reconnects the river and floodplain during high flow events.

Existing floodplain ditches have been re-profiled improving their habitat value while others have been created in a network including new scrapes.

Over 22,000 trees were planted in the project area as part of the wider project utilising Forestry Commission funds through the English Woodland Grant Scheme.

Monitoring surveys and results

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A monitoring Plan has been produced and a baseline of pre works data was collected. This includes biotype mapping, sediment sampling, electro fish survey, RHS Survey and fixed point photography

Lessons learnt

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Applying an ecosystems approach form the start could have attracted more partners funds and benefits and avoided any negative impacts.


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Catchment and subcatchment

Catchment

River basin district South West
River basin Dorset

Subcatchment

River name Frome Dorset (Lower) & Furzebrook Stream
Area category 100 - 1000 km²
Area (km2)
Maximum altitude category 200 - 500 m
Maximum altitude (m) 223
223 m
0.223 km
22,300 cm
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Arable and Horticulture
Waterbody ID GB108044009690



Other case studies in this subcatchment: Bockhampton Enhancement, Hurst Bridge (downstream), Louds Mill (Downstream)m Enhancement, Lower Bockhampton, Lower Woodsford, Martins River Island, Moreton Channel Gravel Reprofiling, North Channel Upper Reach, River Frome Rehabilitation Plan, Unit 1b - Long Bridge to Downstream of Louds Mill... further results


Site

Name
WFD water body codes GB108044009690
WFD (national) typology
WFD water body name Frome Dorset (Lower) & Furzebrook Stream
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
Average bankfull channel width (m)
Average bankfull channel depth category
Average bankfull channel depth (m)
Mean discharge category
Mean annual discharge (m3/s)
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m) 1800
1,800 m
1.8 km
180,000 cm
Project started 2012/01/01
Works started
Works completed
Project completed 2014/01/01
Total cost category
Total cost (k€)
Benefit to cost ratio
Funding sources

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



Reasons for river restoration

Mitigation of a pressure
Hydromorphology Assisted natural recovery
Biology
Physico-chemical
Other reasons for the project Protect a nearly pylon and powerline


Measures

Structural measures
Bank/bed modifications Removal of revetments
Floodplain / River corridor Tree planting, Lowering of embankments
Planform / Channel pattern Re-profiled ditch
Other
Non-structural measures
Management interventions
Social measures (incl. engagement) Community involvement, Engagement with schools
Other Raised interest in future projects


Monitoring

Hydromorphological quality elements

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

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


Monitoring documents



Additional documents and videos


Additional links and references

Link Description

Supplementary Information

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