Case study:Snettisham River Ingol Woody Habitat Project: Difference between revisions

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Revision as of 13:34, 5 May 2015

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Location: 52° 52' 15.00" N, 0° 29' 22.82" E
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Project overview

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Status In progress
Project web site http://www.norfolkriverstrust.org/trust_project/river-ingol/
Themes Habitat and biodiversity, Hydromorphology
Country England
Main contact forename the
Main contact surname RRC
Main contact user ID User:JoshRRC
Contact organisation Norfolk Rivers Trust
Contact organisation web site
Partner organisations
Parent multi-site project
This is a parent project
encompassing the following
projects
No
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Project summary

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It is part of the Norfolk Rivers Trust’s mission to gain the active participation of the community. Stakeholders help us to set objectives, keep us informed about issues on the ground such as pollution and actively volunteer to make many more worthwhile projects possible. We started getting to know the River Ingol from November 2013.

An opportunity to restore a section of the River Ingol by improving habitat has already been identified and carried out close to Snettisham, and this project was be greatly aided by the help of volunteers. We would also like to thank the Environment Agency who managed to substantially support this project with man-power, despite the cuts which have greatly depleted their ability to carry out the excellent work which they do. Norfolk Rivers Trust are grateful for the help which landowners have given to make this project happen, and hope that more projects will be initiated in the near future.

Whilst the first stage of this project was completed in June 2014, we have gained permission from the Environment Agency to continue this project in the Autumn. There were 2 objectives of this project. The first was to enhance the wildlife value for groups such as fish, aquatic birds and insects. A family of ducks has already been seen sheltering in the extra cover! Dace spawning relies on this stretch of the river and will also be enhanced by this project. Woody material in the river enhances spawning because it creates a variety of fast and slow flows which are useful of use for different life stages of fish. In particular, narrowing an over-widened stream such as the Ingol, in places, allows gravels to be kept clear by water flow and this means that fish eggs will have access to well-oxygenated water and will not be smothered by silt. The second aspect of the project was to use alder faggots to protect banks which were eroding due to unnatural causes (variously unnaturally high flows and water plant removal from banks).

Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

Subcatchment:Snettisham


Site

Name
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology
Reference morphology
Desired post project morphology
Heavily modified water body
National/international site designation
Local/regional site designations
Protected species present
Invasive species present
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)
Project started
Works started
Works completed
Project completed
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
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)
Other


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

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Supplementary Information

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