Case study:Upper Cringle Floodplain Restoration Project

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Location: 52° 49' 29.40" N, 0° 38' 55.40" W
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Project overview

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Status Complete
Project web site
Themes Environmental flows and water resources, Flood risk management, Habitat and biodiversity, Hydromorphology, Water quality
Country England
Main contact forename Gail
Main contact surname Talton
Main contact user ID User:LincsRivers
Contact organisation Lincolnshire Rivers Trust
Contact organisation web site http://lincsrivers.org.uk
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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Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment



Site

Name Upper Cringle Brook
WFD water body codes GB105030051560
WFD (national) typology limestone river
WFD water body name Cringle Brook - Upper
Pre-project morphology Straightened, Over deepened
Reference morphology Anastomosing
Desired post project morphology Anastomosing
Heavily modified water body Yes
National/international site designation
Local/regional site designations
Protected species present Yes
Invasive species present No
Species of interest
Dominant hydrology Groundwater
Dominant substrate Clay, Gravel
River corridor land use Grassland
Average bankfull channel width category Less than 2 m
Average bankfull channel width (m)
Average bankfull channel depth category Less than 0.5 m
Average bankfull channel depth (m)
Mean discharge category Less than 0.1 m³/s
Mean annual discharge (m3/s)
Average channel gradient category 0.001 - 0.01
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m) 10001,000 m <br />1 km <br />100,000 cm <br />
Project started 03/02/2022
Works started 2022/02/03
Works completed 2022/04/30
Project completed 2022/04/30
Total cost category 50 - 100 k€
Total cost (k€) 9898 k€ <br />98,000 € <br />
Benefit to cost ratio 2.97
Funding sources Environment Agency

Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design 10 - 50 k€ 1414 k€ <br />14,000 € <br /> Lincolnshire Rivers Trust Gail Talton
Stakeholder engagement and communication Less than 1 k€ Lincolnshire Rivers Trust Gail Talton
Works and works supervision 50 - 100 k€ 8484 k€ <br />84,000 € <br /> Lincolnshire Rivers Trust Gail Talton
Post-project management and maintenance Less than 1 k€ Lincolnshire Rivers Trust Gail Talton
Monitoring Less than 1 k€ Lincolnshire Rivers Trust Gail Talton

Supplementary funding information

Works were paid for by a Water Environment Improvement Fund Grant and land was contributed to the project by the landowner.



Reasons for river restoration

Mitigation of a pressure Land drainage
Hydromorphology Channel pattern/planform
Biology Invertebrates, Macrophytes and/or phytobenthos: Average abundance
Physico-chemical Nutrient concentrations, Oxygen balance
Other reasons for the project Landscape enhancement


Measures

Structural measures
Bank/bed modifications Introducing large woody debris
Floodplain / River corridor Lowering of floodplain, Wildflower meadows
Planform / Channel pattern Back channel created, Channel naturalisation, Creation of an island, Creation of pond, Creation of backwater, Habitat creation
Other
Non-structural measures
Management interventions Associated terrestrial habitat improvements
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
Channel pattern/planform Yes Yes No Yes No Awaiting results

Biological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative
Invertebrates: Diversity No Yes Yes Yes Yes Awaiting results

Physico-chemical quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative
Nutrient concentrations No Yes No Yes Yes Awaiting results

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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